Philips Semiconductors Product specification Octal transceiver with direction pin (3-State) 74ABT245 FEATURES Octal bidirectional bus interface 3-State buffers Output capability: +64mA/~32mMA Latch-up protection exceeds 500mA per Jedec Std 17 ESD protection exceeds 2000 V per MIL STD 833 Method 3015 and 200 V per Machine Model Power-up 3-State @ Live insertion/extraction permitted inputs are disabled during 3-State mode DESCRIPTION The 74ABT245 high-performance BICMOS device combines low static and dynamic power dissipation with high speed and high output drive. The 74ABT245 device is an octal transceiver featuring non-inverting 3-State bus compatible outputs in both send and receive directions. The control function implementation minimizes external timing requirements. The device features an Output Enable (OE) input for easy cascading and a Direction (DIR) input for direction control. QUICK REFERENCE DATA CONDITIONS SYMBOL PARAMETER Tam = 25C; GND = OV TYPICAL UNIT teLH Propagation delay _ . . 2.2 tet An to Bn or Bnto An , = SOPF; Vic = 5V 2.9 ns Ciw input capacitance DIR, OE Vj; = OV or Voc pF Cvo VO pin capacitance Outputs disabled; Vg = OV or Vcc 7 pF looz Total supply current Qutputs disabled; Vcc =5.5V 50 HA ORDERING INFORMATION PACKAGES TEMPERATURE RANGE | OUTSIDE NORTH AMERICA | NORTH AMERICA | DWG NUMBER 20-Pin Plastic DIP 40C to +85C 74ABT245 N 74A4BT245 N SOT146-1 20-Pin plastic SO ~40C to +85C 74ABT245 D 74ABT245 D SOT163-1 20-Pin Plastic SSOP Type Ii ~40C to +85C 74ABT245 DB 74ABT245 OB SOT339-1 20-Pin Plastic TSSOP Type | 40C to +85C 74ABT245 PW 7AABT245PW DH SOT360-1 PIN CONFIGURATION PIN DESCRIPTION PIN NUMBER SYMBOL NAME AND FUNCTION SA00121 1998 Jan 16 1 DIR Direction control input 2,3, 4,5, . . 6.7.8.9 AO -A7_ | Data inputs/outputs (A side) 18,17, 16, 15, 14,13, | BO-B7 | Data inputs/outputs (B side} 19 OE Qutput enable input (active-Low) 10 GND | Ground (OV) 20 Voc Positive supply voltage 853-1447 18867 Philips Semiconductors Product specification Octal transceiver with direction pin (3-State) 74ABT245 LOGIC SYMBOL LOGIC SYMBOL. ({IEEEAEC) 1 G3 3 EN1 (BA) a EN2 (AB) 1d dev 8A00122 SA00123 FUNCTION TABLE INPUTS INPUTS/OUTPUTS OE DIR An Bn L L. An=Bnr Inputs L H (Inputs Bn = An H x Z 4 H_ = High voltage level L =Low voltage level X =Don't care Z =High impedance off state ABSOLUTE MAXIMUM RATINGS? 2 SYMBOL PARAMETER CONDITIONS RATING UNIT Voc DC sxipply voltage 0.5 to +7.0 Vv hk DC input diode current Vv, <0 -18 mA vy DE input voltage? ~1.2 to +7.0 Vv lox | pc output diode current Vo <0 ~0 mA Vout DC output voltage? output in Off or High state 0.5 to +5.5 v lout DC output current output in Low state 128 mA Tstg Storage temperature range ~65 to 150 C NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 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 150C. 3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 1998 Jan 16 153 Philips Semiconductors Product specification Octal transceiver with direction pin (3-State) 74ABT245 RECOMMENDED OPERATING CONDITIONS LIMITS SYMBOL PARAMETER UNIT Min Max Vec OC supply voltage 45 5.5 v Vv input voltage 0 Voc Vv Vin High-level input voltage 2.0 Vv Vit Low-level Input voltage 0.8 Vv low High-level output current ~32 mA lo Low-level output current 64 mA AUAV Input transition rise or fall rate 0 5 ns/V Tamb Operating free-air temperature range 40 +85 C DC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER TEST CONDITIONS Temb = 425C Tam ete | UNIT Min Typ Max Min Max Vix input clamp voltage Voc = 4.5V; Iie = -18MA 0.9 | -1.2 -1.2 Vv Voc = 4.5V; lon = -3MA; Vy = Vic or Vin 25 2.9 25 Vv Vou High-level output voltage Voc = 5.0V; low = -3mA; V; = Vip or Vin 3.0 3.4 3.0 v Voc = 4.5V; low = -32mA; Vi = Viv or Vin 20 | 24 2.0 v Vor Low-level output voltage Voc = 4.8V; Ip, = 64MA; Vy = Vip OF Vip 0.42 | 0.55 0.55 Vv th Inputleakage | Controtpins | Vcc = 5.5V; Vj = GND or 5.5V +0.01 | +1.0 1.0 pA current Data pins Vec = 5.5V; V; = GND or 5.5V 15 +100 +100 nA lorr Power-off leakage current Voc = G.0V; Vj or Vos 4.5V +5.0 | +100 +100 uA lig + lozH | 3-State output High current = | Voc = 5.5V; Vo = 2.7; Vi = Vip or Vin 5.0 50 50 pA lit + loz, | 3-State output Low current Veco = 5.5V; Vg = 0.5V; V, = Vit or Ving ~5.0' | -50 -50 pA Ioex Output high jeakage current | Voc = 5.5V; Vo = 5.5V; V; = GND or Voc 5.0 50 50 pA lo Output current! Voc = 5.5V; Vo = 2.5V 40 | -100 | -180 | -40 | -180 | mA loc Voc = 5.5V; Outputs High, V; = GND or Voc 50 250 250 pA lec. Quiescent supply current Voc = 5.5V; Outputs Low, V, = GND or Voc 24 30 30 mA Icoz we ND Van * Stele 50 250 250 HA Qu ana ne int aS AY che 0 | 15 15 | ma Aloe foot one supply current per phn et Veron enw ve wee a 3.4V, other 50 250 250 yA othar inputs at Vow or GND: Veg =5.5V os | 15 15 | ma NOTES: 1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second. 2. This is the increase in supply current for each input at 3.4V. 3. This parameter is valid for any Voc between OV and 2.1V with a transition time of up to 10msec. For Voc = 2.1V to Voc = SV + 10%, a transition time of up to 100usec is permitted. 4998 Jan 16 154 Philips Semiconductors Product specification Octal transceiver with direction pin (3-State) 74ABT245 AC CHARACTERISTICS . GND = OV; ty = te = 2.5ns; C_ = SOpF, R, = 500Q LIMITS Tamb = +25C Tamb = ~40C to +85C SYMBOL PARAMETER WAVEFORM Voc = 45.0V Vee = 45.0V +0.5V UNIT Min Typ Max Min Max teLH Propagation delay 1 1.0 2.2 41 1.0 46 ns teu An to Bn or Bn to An 1.0 29 4.2 1.0 4.6 tezH Output enable time 2 1.3 3.0 48 1.3 5.3 ns tez. to High and Low level 2.3 4.0 5.8 2.3 6.3 toyz Output disable time 2 1.0 4.7 6.2 1.0 7.2 ns teiz from High and Low Level 1.0 44 5.8 1.0 6.3 AC WAVEFORMS Ve = 1.5V, Vin = GND to 3.0V nOE INPUT OUTPUT VoL +0.3 = VQH - 0.3V SA00124 OUTPUT Waveform 1. Waveforms Showing the Input to Output Propagation Delays SA00024 1998 Jan 16 Waveform 2. Waveforms Showing the 3-State Output Enable and Disable Times Philips Semiconductors Product specification Octal transceiver with direction pin (3-State) 74ABT245 TEST CIRCUIT AND WAVEFORMS | , Voc 90% Ww cov AMP (V) j tL. 7.0V Vin PULSE put GENERATOR = SS POSITIVE PULSE NEGATIVE PULSE ov TTLH (tr) 'THL (tr) TTHL (tr) AMP (V) TTLH (tad 10% 10% Test Circuit for 3-State Outputs ov Ww SWITCH POSITION Vy = 1.5V TEST | SWITCH tpiz closed input Pulse Definition tpze closed All other open DEFINITIONS INPUT PULSE REQUIREMENTS a FAMILY FA, = Load resistor; see AC CHARACTERISTICS for vatue. Amplitude | Rep. Rate tw ta te C, = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. 74ABT 3.0V {MHz 500ns| 2.5ns | 2.5ns Ry = Termination resistance should be equal to Zou of pulse generators. $A00012 156 1998 Jan 16