1. General description
The 74ABT841 high performance BiCMOS device combines low static and dynamic
power dissipation with high speed and high output drive.
The 74ABT841 bus interface register is designed to provide extra data width for wider
data/address paths of buses carrying parity.
The 74ABT841 consists of ten D-type latches with 3-state outputs. The flip-flop s appear
transparent to the data when latch enable (LE) is HIGH. This allows asynchronous
operation, as the output transition follows the data in transition. On the LE HIGH-to-LOW
transition, the data that meets the set-up and hold time is latched.
Data appears on the bus when the output enable (OE) is LOW. When OE is HIGH the
output is in the high-impedance state.
2. Features and benefits
High speed parallel latches
Extra dat a width for wide address/data paths or buses carrying parity
Ideal where high speed, light loading, or increased fan-in are required with MOS
microprocessors
Broadside pinout
Output capability: +64 mA and 32 mA
Power-up 3-state
Power-up reset
Latch-up protection exceeds 500 mA per JESD78B class II level A
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
74ABT841
10-bit bus interface latch; 3-state
Rev. 4 — 7 November 2011 Product data sheet
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 2 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
3. Ordering information
4. Functional diagram
Table 1. Ordering information
Type number Package
Temperature
range Name Description Version
74ABT841D 40 C to +85 CSO24 plastic small outline package; 24 leads;
body width 7.5 mm SOT137-1
74ABT841DB 40 C to +85 CSSOP24 plastic shrink small outline package; 24 leads;
body width 5.3 mm SOT340-1
74ABT841PW 40 C to +85 CTSSOP24 plastic thin shrink small outline package; 24 leads;
body width 4.4 mm SOT355-1
Fig 1. Logic symbol Fig 2. IEC logic symbol
001aae911
1OE
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
D0 D1 D2 D3 D4 D5 D6 D7
23 22 21 20 19 18 17 16
23456789
13 LE
15
10
Q8
D8
14
11
Q9
D9
1
1D
EN
13 C1
223
322
421
520
619
718
817
916
10 15
11 14
001aae912
Fig 3. Logic diag ram
001aae913
D
LQ
D2
LE
OE
Q2
D
LQ
D3
Q3
D
LQ
D4
D
LQ
D0
Q0
D
LQ
D1
Q1 Q4
D
LQ
D5
Q5
D
LQ
D6
Q6
D
LQ
D7
Q7
D
LQ
D8
Q8
D
LQ
D9
45623 7891011
21 20 1923
13
1
22 18 17 16 15 14
Q9
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 3 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
5. Pinning information
5.1 Pinning
5.2 Pin description
Fig 4. Pin configuratio n
74ABT841
OE VCC
D0 Q0
D1 Q1
D2 Q2
D3 Q3
D4 Q4
D5 Q5
D6 Q6
D7 Q7
D8 Q8
D9 Q9
GND LE
001aae910
1
2
3
4
5
6
7
8
9
10
11
12
14
13
16
15
18
17
20
19
22
21
24
23
Table 2. Pin description
Symbol Pin Description
OE 1output enable input (active LOW)
D0 to D9 2, 3, 4, 5, 6, 7, 8, 9,10, 11 data input
GND 12 ground (0 V)
LE 13 latch enable input (active falling edge)
Q0 to Q9 23, 22, 21, 20, 19, 18, 17, 16, 15, 14 data output
VCC 24 positive supply voltage
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 4 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
6. Functional description
[1] H = HIGH voltage level;
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH LE transition;
L = LOW voltage level;
l = LOW voltage level one set-up time prior to the LOW-to-HIGH LE transition;
= HIGH-to-LOW clock transition;
NC = no change;
X = don’t care;
Z = high-impedance OFF-state.
7. Limiting values
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150 C.
Table 3. Function table[1]
Input Output Operating mode
OE LE nD Q0 to Q9
LHLLtransparent
L H H H
Ll L latched
Lh H
H X X Z high-impedance
LLXNC hold
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
VCC supply voltage 0.5 +7.0 V
VIinput voltage [1] 1.2 +7.0 V
VOoutput voltage ou t pu t in OFF-st at e or HIGH-state [1] 0.5 +5.5 V
IIK input clamping current VI < 0 V 18 -mA
IOK output clamping current VO < 0 V 50 -mA
IOoutput current output in LOW-state -128 mA
Tjjunction temperature [2] -150 C
Tstg storage temperature 65 +150 C
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 5 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
8. Recommended operating conditions
9. Static characteristics
Table 5. Recommended operating con ditions
Symbol Parameter Conditions Min Typ Max Unit
VCC supply voltage 4.5 -5.5 V
VIinput voltage 0 - VCC V
VIH HIGH-level input voltage 2.0 --V
VIL LOW-level input voltage --0.8 V
IOH HIGH-level output current 32 --mA
IOL LOW-level output current --64 mA
t/Vinput transition rise and fall rate 0- 5ns/V
Tamb ambient temperature in free air 40 -+85 C
Table 6. Static characteristics
Symbol Parameter Conditions 25 C40 C to +85 CUnit
Min Typ Max Min Max
VIK input clamping voltage VCC = 4.5 V; IIK = 18 mA 1.2 0.9 -1.2 - V
VOH HIGH-level output
voltage VI = VIL or VIH
VCC = 4.5 V; IOH = 3 mA 2.5 3.5 -2.5 - V
VCC = 5.0 V; IOH = 3 mA 3.0 4.0 -3.0 - V
VCC = 4.5 V; IOH = 32 mA 2.0 2.6 -2.0 - V
VOL LOW-level output
voltage VCC = 4.5 V; IOL = 64 mA;
VI = VIL or VIH
-0.42 0.55 -0.55 V
VOL(pu) power-up LOW-level
output voltage VCC = 5.5 V; IO = 1 mA;
VI = GND or VCC
[1] -0.13 0.55 -0.55 V
IIinput leakage current VCC = 5.5 V; VI = GND or 5.5 V
control pins -0.01 1.0 -1.0 A
data pins -5100 -100A
IOFF power-off leakage
current VCC = 0 V; VI or VO 4.5 V - 5.0 100 -100 A
IO(pu/pd) power-up/power-down
output current VCC = 2.0 V; VO = 0.5 V;
VI = GND or VCC; OEn HIGH [2] -5.0 50 -50 A
IOZ OFF-state output current VCC = 5.5 V; VI = VIL or VIH
VO = 2.7 V - 5.0 50 -50 A
VO = 0.5 V - 5.0 50 -50 A
ILO output leakage current HIGH-state; VO = 5.5 V;
VCC = 5.5 V; VI = GND or VCC
-5.0 50 -50 A
IOoutput current VCC = 5.5 V; VO = 2.5 V [3] 180 100 50 180 50 mA
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 6 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
[1] For valid test results, data must not be loaded into the flip-flops (or latches) after applying the power.
[2] This parameter is valid for any VCC between 0 V and 2.1 V with a transition time of up to 10 ms. For VCC = 2.1 V to VCC = 5 V 10 %, a
transition time of up to 100 s is permitted.
[3] Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
[4] This is the increase in supply current for each input at 3.4 V.
10. Dynamic characteristics
ICC supply current VCC = 5.5 V; VI = GND or VCC
outputs HIGH-state -0.5 250 -250 A
outputs LOW-state -25 38 -38 mA
outputs disabled -0.5 250 -250 A
ICC additional supply current per input pin; VCC = 5.5 V; one
input at 3.4 V; other inputs at VCC
or GND
[4] -0.5 1.5 -1.5 mA
CIinput capacitance VI = 0 V or VCC - 4 - - - pF
COoutput capacitance outputs disabled; VO = 0 V or VCC - 7 - - - pF
Table 6. Static characteristics …continued
Symbol Parameter Conditions 25 C40 C to +85 CUnit
Min Typ Max Min Max
Table 7. Dynamic characteristics
GND = 0 V; for test circuit, see Figure 9.
Symbol Parameter Conditions 25 C; VCC = 5.0 V 40 C to +70 C;
VCC = 5.0 V 0.5 V Unit
Min Typ Max Min Max
tPLH LOW to HIGH
propagation delay Dn to Qn; see Figure 5 2.1 4.1 5.5 2.1 6.2 ns
LE to Qn; see Figure 62.1 4.1 5.9 2.1 6.5 ns
tPHL HIGH to LOW
propagation delay Dn to Qn; see Figure 5 2.0 4.0 5.5 2.0 6.2 ns
LE to Qn; see Figure 62.8 4.6 6.2 2.8 6.7 ns
tPZH OFF-state to HIGH
propagation delay OE to Qn; see Figure 7 1.0 3.0 4.5 1.0 5.3 ns
tPZL OFF-state to LOW
propagation delay OE to Qn; see Figure 7 2.2 4.1 5.6 2.2 6.3 ns
tPHZ HIGH to OFF-state
propagation delay OE to Qn; see Figure 7 2.7 4.7 6.2 2.7 7.1 ns
tPLZ LOW to OFF-state
propagation delay OE to Qn; see Figure 7 2.8 4.6 6.1 2.8 6.5 ns
tsu(H) set-up time HIGH Dn to LE; see Figure 8 2.5 1.0 -2.5 -ns
tsu(L) set-up time LOW Dn to LE; see Figure 8 1.5 0 - 1.5 -ns
th(H) hold time HIGH Dn to LE; see Figure 8 1.5 0.2 -1.5 -ns
th(L) hold time LOW Dn to LE; see Figure 8 +1.0 0.8 -1.0 -ns
tWH pulse width HIGH LE; see Figure 6 3.3 1.9 -3.3 -ns
tWL pulse width LOW LE; see Figure 6 3.3 1.9 -3.3 -ns
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 7 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
11. Waveforms
VM = 1.5 V
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 5. Propagation delay for data to output
001aae916
V
M
V
M
t
PLH
t
PHL
V
M
V
I
V
M
Dn
Qn
V
OH
V
OL
GND
VM = 1.5 V
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 6. Propagation delay, latch enable input to output and enable pulse width
001aae914
t
PHL
t
PLH
t
WH
V
M
V
M
V
M
V
M
V
M
LE
GND
Qn
t
WL
V
I
V
OH
V
OL
VM = 1.5 V
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 7. 3-state output (Qn) enable and dis a bl e tim e s
001aal299
tPLZ
tPHZ
outputs
disabled outputs
enabled
VOH 0.3 V
VOL + 0.3 V
outputs
enabled
output
LOW-to-OFF
OFF-to-LOW
output
HIGH-to-OFF
OFF-to-HIGH
OE input
VI
VOL
VOH
3.5 V
VM
GND
GND
tPZL
tPZH
VM
VM
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 8 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
VM = 1.5 V
The shaded areas indicate when the input is permitted to change for predictable output performance.
Fig 8. Data set-up and hold times
001aae918
V
M
Dn
LE
GND
V
M
V
M
V
M
V
M
V
M
t
su(H)
t
h(H)
t
su(L)
t
h(L)
GND
V
I
V
I
a. Input pulse definition b. Test circuit
Test data and VEXT levels are given in Table 8.
RL = Load resistance.
CL = Load capacitance including jig and probe capacitance.
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
VEXT = Test voltage for switching times.
Fig 9. Test circuit for measuring switching times
VEXT
VCC
VIVO
mna616
DUT
CL
RT
RL
RL
G
Table 8. Test data
Input Load VEXT
VIfItWtr, tfCLRLtPHL, tPLH tPZH, t PHZ tPZL, tPLZ
3.0 V 1 MHz 500 ns 2.5 ns 50 pF 500 open open 7.0 V
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 9 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
12. Package outline
Fig 10. Package outline SOT137-1 (SO24)
UNIT A
max. A1A2A3bpcD
(1) E(1) (1)
eH
ELL
pQZ
ywv θ
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC JEITA
mm
inches
2.65 0.3
0.1 2.45
2.25 0.49
0.36 0.32
0.23 15.6
15.2 7.6
7.4 1.27 10.65
10.00 1.1
1.0 0.9
0.4 8
0
o
o
0.25 0.1
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
1.1
0.4
SOT137-1
X
12
24
wM
θ
A
A1
A2
bp
D
HE
Lp
Q
detail X
E
Z
c
L
vMA
13
(A )
3
A
y
0.25
075E05 MS-013
pin 1 index
0.1 0.012
0.004 0.096
0.089 0.019
0.014 0.013
0.009 0.61
0.60 0.30
0.29 0.05
1.4
0.055
0.419
0.394 0.043
0.039 0.035
0.016
0.01
0.25
0.01 0.004
0.043
0.016
0.01
e
1
0 5 10 mm
scale
SO24: plastic small outline package; 24 leads; body width 7.5 mm SOT137-1
99-12-27
03-02-19
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 10 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
Fig 11. Package outline SOT340-1 (SSOP24)
UNIT A1A2A3bpcD
(1) E(1) (1)
eH
ELL
pQZywv θ
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC JEITA
mm 0.21
0.05 1.80
1.65 0.38
0.25 0.20
0.09 8.4
8.0 5.4
5.2 0.65 1.25
7.9
7.6 0.9
0.7 0.8
0.4 8
0
o
o
0.13 0.10.2
DIMENSIONS (mm are the original dimensions)
Note
1. Plastic or metal protrusions of 0.2 mm maximum per side are not included.
1.03
0.63
SOT340-1 MO-150 99-12-27
03-02-19
X
wM
θ
A
A1
A2
bp
D
HE
Lp
Q
detail X
E
Z
e
c
L
vMA
(A )
3
A
112
24 13
0.25
y
pin 1 index
0 2.5 5 mm
scale
SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1
A
max.
2
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 11 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
Fig 12. Package outline SOT355-1 (TSSOP24)
UNIT A1A2A3bpcD
(1) E(2) (1)
eH
ELL
pQZywv θ
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC JEITA
mm 0.15
0.05 0.95
0.80 0.30
0.19 0.2
0.1 7.9
7.7 4.5
4.3 0.65 6.6
6.2 0.4
0.3 8
0
o
o
0.13 0.10.21
DIMENSIONS (mm are the original dimensions)
Notes
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.
0.75
0.50
SOT355-1 MO-153 99-12-27
03-02-19
0.25 0.5
0.2
wM
bp
Z
e
112
24 13
pin 1 index
θ
A
A1
A2
Lp
Q
detail X
L
(A )
3
HE
E
c
vMA
X
A
D
y
0 2.5 5 mm
scale
TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm SOT355-1
A
max.
1.1
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Product data sheet Rev. 4 — 7 November 2011 12 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
13. Abbreviations
14. Revision history
Table 9. Abbreviations
Acronym Description
BiCMOS Bipolar Complementary Metal-Oxide Semiconductor
DUT Device Under Test
ESD ElectroStatic Discharge
HBM Human Body Model
MM Machine Model
Table 10. Revision history
Document ID Release date Data sheet status Change notice Supersedes
74ABT841 v.4 20111107 Product data sheet -74ABT841 v.3
Modifications: Legal pages updated.
74ABT841 v.3 20100325 Product data sheet -74ABT841 v.2
74ABT841 v.2 20100302 Product data sheet -74ABT841
74ABT841 19950906 Product specification - -
74ABT841 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 4 — 7 November 2011 13 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
15. Legal information
15.1 Data sheet status
[1] Please consult the most recently issued document before initiating or completing a design.
[2] The term ‘short data sheet’ is explained in section “Definitions”.
[3] The product status of de vice(s) descr ibed in th is docume nt may have cha nged since this docume nt was publis hed and ma y dif fer in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nxp.com.
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Short data sheet — A short data sheet is an extract from a full data sheet
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full information. For detailed and full information see the relevant full data
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Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanent ly and irreversibly affect
the quality and reliability of the device.
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Document status[1][2] Product status[3] Definition
Objective [short] data sheet Development This document contains data from the objective specification for product development .
Preliminary [short] dat a sheet Qualification This document contains data from the preliminar y specification.
Product [short] dat a sheet Production This document cont ains the product specification.
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Product data sheet Rev. 4 — 7 November 2011 14 of 15
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
Non-automotive qualified products — Unless this data sheet expressly
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the product is not suitable for aut omo tive use. It i s neit her qua lif ied nor tested
in accordance with automotive testing or application requirements. NXP
Semiconductors accepts no liability for inclusion and/or use of
non-automotive qualified products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in
automotive applications to automot ive specifications and standard s, customer
(a) shall use the product without NXP Semiconductors’ warranty of the
product for such automotive applications, use and specifications, and (b)
whenever customer uses the product for automotive applications beyond
NXP Semiconductors’ specifications such use shall be solely at customer’s
own risk, and (c) customer fully indemnifies NXP Semiconductors for any
liability, damages or failed product claims resulting f rom customer design an d
use of the product for automotive applications beyond NXP Semiconductors’
standard warranty and NXP Semiconductors’ product specif ications.
15.4 Trademarks
Notice: All referenced b rands, produc t names, service names and trademarks
are the property of their respect i ve ow ners.
16. Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
NXP Semiconductors 74ABT841
10-bit bus interface latch; 3-state
© NXP B.V. 2011. All rights reserved.
For more information, please visit: http://www.nxp.co m
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 7 November 2011
Document identifier: 74ABT841
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
17. Contents
1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
4 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2
5 Pinning information. . . . . . . . . . . . . . . . . . . . . . 3
5.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
6 Functional description . . . . . . . . . . . . . . . . . . . 4
7 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 4
8 Recommended operating conditions. . . . . . . . 5
9 Static characteristics. . . . . . . . . . . . . . . . . . . . . 5
10 Dynamic characteristics . . . . . . . . . . . . . . . . . . 6
11 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
12 Package outline . . . . . . . . . . . . . . . . . . . . . . . . . 9
13 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 12
14 Revision history. . . . . . . . . . . . . . . . . . . . . . . . 12
15 Legal information. . . . . . . . . . . . . . . . . . . . . . . 13
15.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 13
15.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
15.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 13
15.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 14
16 Contact information. . . . . . . . . . . . . . . . . . . . . 14
17 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15