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參數資料
| 型號： | MC74F657A |
| 廠商： | Motorola, Inc. |
| 英文描述： | OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS) |
| 中文描述： | 八路雙向收發器帶有8位奇偶發生器檢查器（三態輸出） |
| 文件頁數： | 3/5頁 |
| 文件大小： | 135K |
| 代理商： | MC74F657A |
4-249
FAST AND LS TTL DATA
MC74F657A, B
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
VIL
VIK
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage
Input Clamp Diode Voltage
–0.73
–1.2
V
VCC = MIN, IIN = –18 mA
Output HIGH Voltage
All Outputs
74
2.4
V
IOH = –3.0 mA
VCC = 4.5 V
VCC = 4.75 V
VOH
2.7
3.4
B0–B7
PARITY,
ERROR
74
2.0
V
IOH = –15 mA
VCC = 4.5 V
Output LOW Voltage
A0–A7
74
0.35
0.5
V
IOL = 24 mA
VCC = MIN
VOL
B0–B7
PARITY,
ERROR
74
0.4
0.55
V
IOL = 64 mA
IIH
Input HIGH Current
T/R, OE, EVEN/ODD
100
μ
A
VCC = 0 V, VIN = 7.0 V
A0–A7
2.0
mA
VCC = 5.5 V, VIN = 5.5 V
VCC = 5.5 V, VIN = 5.5 V
B0–B7, PARITY
1.0
EVEN/ODD
20
μ
A
VCC = MAX, VIN = 2.7 V
T/R, OE
40
IIL
Input LOW Current
EVEN/ODD
–20
μ
A
VCC = MAX, VIN = 0.5 V
T/R, OE
–40
IIH
+IOZH
IIL
+IOZL
Off-State Current HIGH
Level Voltage Applied
A0–A7
PARITY
70
μ
A
VCC = MAX, VOUT = 2.7 V
Off-State Current LOW
Level Voltage Applied
B0–B7
–70
VCC = MAX, VOUT = 0.5 V
IOZH
Off-State Output Current,
High-Level Voltage Applied
50
μ
A
VCC = MAX, VOUT = 2.7 V
IOZL
Off-State Output Current,
Low-Level Voltage Applied
ERROR
–50
VCC = MAX, VOUT = 0.5 V
IOS
Current (Note 2)
An Outputs
PARITY, Bn Outputs,
ERROR
–60
–150
mA
VCC = MAX, VOUT = 0 V
Output Short Circuit
–100
–225
ICC
Total Supply Current
ICCH
ICCL
ICCZ
90
135
mA
VCC = MAX
106
150
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.
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| MC74F657A WAF | 制造商:ON Semiconductor 功能描述: |
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