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74F657 Datasheet, PDF (4/7 Pages) NXP Semiconductors – Octal transceiver with 8-bit parit generator/checker
Absolute Maximum Ratings(Note 1)
Storage Temperature
−65°C to +150°C
Ambient Temperature under Bias
−55°C to +125°C
Junction Temperature under Bias
−55°C to +150°C
VCC Pin Potential to Ground Pin
Input Voltage (Note 2)
−0.5V to +7.0V
−0.5V to +7.0V
Input Current (Note 2)
−30 mA to +5.0 mA
Voltage Applied to Output
in HIGH State (with VCC = 0V)
Standard Output
3-STATE Output
−0.5V to VCC
−0.5V to +5.5V
Current Applied to Output
in LOW State (Max)
twice the rated IOL (mA)
Recommended Operating
Conditions
Free Air Ambient Temperature
Supply Voltage
0°C to +70°C
+4.5V to +5.5V
Note 1: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max
Units
VCC
Conditions
VIH
Input HIGH Voltage
2.0
VIL
Input LOW Voltage
VCD
Input Clamp Diode Voltage
VOH
Output HIGH
10% VCC
2.5
Voltage
10% VCC
2.4
10% VCC
2.0
5% VCC
2.7
5% VCC
2.7
VOL
Output LOW
10% VCC
Voltage
10% VCC
V
Recognized as a HIGH Signal
0.8
V
Recognized as a LOW Signal
−1.2
V
Min IIN = −18 mA
IOH = −1 mA (An)
IOH = −3 mA (An Bn, Parity, ERROR)
V
Min IOH = −15 mA (Bn, Parity, ERROR)
IOH = −1 mA (An)
IOH = −3 mA (An, Bn, Parity, ERROR)
0.5
IOL = 24 mA (An)
V
Min
0.55
IOL = 64 mA (Bn Parity, ERROR)
IIH
Input HIGH
Current
20
µA
Max VIN = 2.7V (ODD/EVEN)
40
VIN 2.7V (T/R, OE)
IBVI
Input HIGH Current
Breakdown Test
100
µA
VCC = 0 VIN = 7.0V (T/R, OE, ODD/EVEN)
IBVIT
Input HIGH Current
Breakdown Test (I/O)
1.0
mA
Max VIN = 5.5V (Parity, Bn)
2.0
VIN = 5.5V (An)
IIL
Input LOW
Current
−20
µA
Max VIN = 0.5V (ODD/EVEN)
−40
VIN = 0.5V (T/R, OE)
IOZH
Output Leakage Current
50
µA
Max VOUT = 2.7V (ERROR)
IOZL
IIH + IOZH
IIL + IOZL
IOS
Output Leakage Current
Output Leakage
Current
Output Leakage
Current
Output Short-Circuit
Current
−60
−100
−50
µA
Max VOUT = 0.5V (ERROR)
70
µA
Max VI/O = 2.7V (Bn, Parity)
90
VI/O = 2.7V (An)
−70
µA
Max VI/O = 0.5V (Bn, Parity)
−90
VI/O = 0.5V (An)
−150
mA
Max VOUT = 0V (An)
−225
VOUT = 0V (Bn, Parity, ERROR)
ICEX
Output HIGH Leakage
Current
250
µA
Max VOUT = VCC (ERROR)
1.0
mA
Max VOUT = VCC (Bn, Parity)
2.0
mA
Max VOUT = VCC (An)
IZZ
ICCH
ICCL
ICCZ
Bus Drainage Test
Power Supply Current
Power Supply Current
Power Supply Current
500
µA
0.0V VOUT = 5.25V (An, Bn, Parity, ERROR)
101
125
mA
Max VO = HIGH
112
150
mA
Max VO = LOW
109
145
mA
Max VO = HIGH Z
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