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參數(shù)資料
| 型號(hào)： | MC74F1245J |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE INPUTS/OUTPUTS |
| 中文描述： | F/FAST SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDIP20 |
| 封裝： | 732-03 |
| 文件頁(yè)數(shù)： | 3/3頁(yè) |
| 文件大?。?/td> | 79K |
| 代理商： | MC74F1245J |
4-266
FAST AND LS TTL DATA
MC74F1245
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
(Note 1)
Min
Typ
Max
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
VOH
Output HIGH Voltage An Outputs
74
2.4
3.3
—
V
IOH = –3.0 mA
VCC = 4.5 V
VCC = 4.75 V
VCC = 4.5 V
VCC = 4.75 V
VCC = 4.5 V
74
2.7
3.3
—
V
VOH
Output HIGH Voltage Bn Outputs
74
2.4
3.4
—
V
IOH = –3.0 mA
74
2.7
3.4
—
V
74
2.0
—
—
V
IOH = –15 mA
VOL
VOL
IOZH
IOZL
Output LOW Voltage An Outputs
Output LOW Voltage Bn Outputs
Output Off Current HIGH
74
—
0.35
0.5
V
IOL = 24 mA
IOL = 64 mA
VCC = MAX
VCC = MAX, VOUT = 0.5 V
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 2.7 V
VCC = 0 V, VIN = 7.0 V
VCC = 0 V, VIN = 5.5 V
VCC = 0 V, VIN = 5.5 V
VCC = MIN
74
—
—
0.55
V
—
—
70
μ
A
VOUT = 2.7 V
Output Off Current LOW
—
—
–70
μ
A
IIH
Input HIGH Current
OE, T/R Inputs
—
—
40
μ
A
An, Bn Inputs
OE, T/R Inputs
—
—
70
μ
A
—
—
100
μ
A
Bn Inputs
An Inputs
OE, T/R Inputs
—
—
1.0
mA
IIHH
Input HIGH Current
—
—
2.0
mA
IIL
Input LOW Current
—
—
–40
μ
A
VCC = MAX, VIN = 0.5 V
An, Bn Inputs
An Outputs
Bn Outputs
ICCH
ICCL
ICCZ
—
—
–70
μ
A
IOS
Output Short Circuit Current
(Note 2)
–60
—
–150
mA
VCC = MAX, VOUT = GND
–100
—
–225
mA
ICC
Power Supply Current
—
—
120
VCC = MAX
—
—
120
mA
—
—
130
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
AC ELECTRICAL CHARACTERISTICS
74F
74F
TA = +25
°
C
VCC = +5.0 V
CL = 50 pF
Min
TA = 0
°
C to +70
°
C
VCC = +5.0 V
±
10%
CL = 50 pF
Min
Symbol
Parameter
Max
Max
Unit
tPLH
tPHL
Propagation Delay
Transparent Mode An to Bn or Bn to An
2.0
2.5
6.5
7.5
1.5
2.0
7.0
8.0
ns
tPZH
tPZL
Output Enable Time
3.0
4.0
8.0
10.0
2.5
3.5
9.0
11.0
ns
tPHZ
tPLZ
Output Disable Time
2.0
1.0
8.0
10.0
1.5
1.0
9.0
11.0
ns
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