Philips Semiconductors Product specification
74ABT245Octal transceiver with direction pin (3-State)
1998 Jan 16 4
RECOMMENDED OPERATING CONDITIONS
LIMITS
Min Max
VCC DC 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 or fall rate 0 5 ns/V
Tamb Operating free-air temperature range –40 +85 °C
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL PARAMETER TEST CONDITIONS Tamb = +25°CTamb = –40°C
to +85°CUNIT
Min Typ Max Min Max
VIK Input clamp voltage VCC = 4.5V ; IIK = –18mA –0.9 –1.2 –1.2 V
VCC = 4.5V ; IOH = –3mA; VI = VIL or VIH 2.5 2.9 2.5 V
VOH High-level output voltage VCC = 5.0V ; IOH = –3mA; VI = VIL or VIH 3.0 3.4 3.0 V
VCC = 4.5V ; IOH = –32mA; VI = VIL or VIH 2.0 2.4 2.0 V
VOL Low-level output voltage VCC = 4.5V ; IOL = 64mA; VI = VIL or VIH 0.42 0.55 0.55 V
IIInput leakage Control pins VCC = 5.5V ; V I = GND or 5.5V ±0.01 ±1.0 ±1.0 µA
current Data pins VCC = 5.5V; VI = GND or 5.5V ±5±100 ±100 µA
IOFF Power-of f leakage current VCC = 0.0V; VI or VO ≤ 4.5V ±5.0 ±100 ±100 µA
IPU/IPD Power-up/down 3-State
output current3VCC = 2.0V ; V O = 0.5V; VI = GND or VCC;
VOE = Don’t care ±5.0 ±50 ±50 µA
IIH + IOZH 3-State output High current VCC = 5.5V ; V O = 2.7V; VI = VIL or VIH 5.0 50 50 µA
IIL + IOZL 3-State output Low current VCC = 5.5V ; V O = 0.5V; VI = VIL or VIH –5.0 –50 –50 µA
ICEX Output high leakage current VCC = 5.5V ; V O = 5.5V; VI = GND or VCC 5.0 50 50 µA
IOOutput current1VCC = 5.5V; VO = 2.5V –40 –100 –180 –40 –180 mA
ICCH VCC = 5.5V ; Outputs High, VI = GND or VCC 50 250 250 µA
ICCL Quiescent supply current VCC = 5.5V ; Outputs Low, VI = GND or VCC 24 30 30 mA
ICCZ VCC = 5.5V ; Outputs 3-State;
VI = GND or VCC 50 250 250 µA
Outputs enabled, one input at 3.4V, other
inputs at VCC or GND; VCC = 5.5V 0.5 1.5 1.5 mA
∆ICC Additional supply current per
input pin2Outputs 3-State, one data input at 3.4V, other
inputs at VCC or GND; VCC = 5.5V 50 250 250 µA
Outputs 3-State, one enable input at 3.4V,
other inputs at VCC or GND; VCC = 5.5V 0.5 1.5 1.5 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 VCC between 0V and 2.1V with a transition time of up to 10msec. For VCC = 2.1V to VCC = 5V10%, a
transition time of up to 100µsec is permitted.