MC74F657A Просмотр технического описания (PDF) - Motorola => Freescale
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производитель
MC74F657A
Motorola => Freescale
MC74F657A Datasheet PDF : 5 Pages
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MC74F657A, B
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH
VIL
VIK
VOH
Input HIGH Voltage
2.0
Input LOW Voltage
0.8
Input Clamp Diode Voltage
–0.73 –1.2
All Outputs 74 2.4
Output HIGH Voltage
B0–B7
PARITY,
ERROR
2.7 3.4
74 2.0
V Guaranteed Input HIGH Voltage
V Guaranteed Input LOW Voltage
V
VCC = MIN, IIN = –18 mA
VCC = 4.5 V
V
IOH = –3.0 mA
VCC = 4.75 V
V
IOH = –15 mA VCC = 4.5 V
VOL
Output LOW Voltage
A0–A7
74
B0–B7
PARITY,
74
ERROR
0.35 0.5
0.4 0.55
V
IOL = 24 mA
VCC = MIN
V
IOL = 64 mA
IIH
Input HIGH Current
T/R, OE, EVEN/ODD
A0–A7
B0–B7, PARITY
EVEN/ODD
T/R, OE
100
µA VCC = 0 V, VIN = 7.0 V
2.0
VCC = 5.5 V, VIN = 5.5 V
mA
1.0
VCC = 5.5 V, VIN = 5.5 V
20
µA VCC = MAX, VIN = 2.7 V
40
IIL
Input LOW Current
EVEN/ODD
T/R, OE
–20
–40
µA VCC = MAX, VIN = 0.5 V
IIH
+IOZH
IIL
+IOZL
IOZH
IOZL
Off-State Current HIGH
Level Voltage Applied
Off-State Current LOW
Level Voltage Applied
Off-State Output Current,
High-Level Voltage Applied
Off-State Output Current,
Low-Level Voltage Applied
A0–A7
B0–B7
PARITY
ERROR
70
VCC = MAX, VOUT = 2.7 V
µA
–70
VCC = MAX, VOUT = 0.5 V
50
VCC = MAX, VOUT = 2.7 V
µA
–50
VCC = MAX, VOUT = 0.5 V
IOS
Output Short Circuit
Current (Note 2)
An Outputs
PARITY, Bn Outputs,
ERROR
–60
–100
–150
–225
mA
VCC = MAX, VOUT = 0 V
ICCH
90 135
ICC
Total Supply Current
ICCL
106 150
mA VCC = MAX
ICCZ
98 145
NOTES:
1. For conditions shown as MIN or MAX, use appropriate value specified under recommended operating conditions for the applicable device type.
2. Not more than one output should be shorted at one time, nor for more than 1 second.
FAST AND LS TTL DATA
4-249
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