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參數資料
| 型號： | MC74F2245 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Supply Voltage Supervisor w/Watchdog input, RESET, /RESET 5-SOT-23 -40 to 85 |
| 中文描述： | 25ohm八路雙向收發(fā)器具有三態(tài)輸入和輸出 |
| 文件頁數： | 2/5頁 |
| 文件大?。?/td> | 137K |
| 代理商： | MC74F2245 |
MC74F2245
MOTOROLA
TIMING SOLUTIONS
BR1333 — REV 5
2
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage
VIL
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage
VIK
Input Clamp Diode Voltage
–1.2
V
IIN = –18 mA
VCC = MIN
VOH
Output HIGH Voltage, Outputs
2.5
V
IOH = –1.0 mA
VCC = 4.50 V
2.4
3.0
V
IOH = –3.0 mA
VCC = 4.50 V
2.7
3.2
V
IOH = –3.0 mA
VCC = 4.75 V
VOL
Output LOW Voltage, Outputs
0.2
0.5
V
IOL = 1 mA
VCC = MIN
VOL
Output LOW Voltage, Outputs
0.5
0.75
V
IOL = 12 mA
VCC = MIN
IOZH + IIH
Output Off Current HIGH
70
μ
A
VOUT = 2.7 V
VCC = MAX
IOZL + IIL
Output Off Current LOW
–650
mA
VOUT = 0.5 V
VCC = MAX
OE, T/R Inputs
20
μ
A
VIN = 2.7 V
IIH
Input HIGH Current
OE, T/R Inputs
100
μ
A
VIN = 7.0 V
VCC = MAX
An, Bn Inputs
1.0
mA
VIN = 5.5 V
T/R Input
–0.8
mA
IIL
Input LOW Current
OE Input
–1.2
mA
VIN = 0.5 V
VCC = MAX
IOS
Output Short Circuit
An Outputs
–60
–150
mA
VOUT = GND
VCC = MAX
Current (Note 2)
Bn Outputs
–100
–225
mA
VOUT = GND
VCC = MAX
ICCH
Power Supply Current HIGH
90
mA
VCC = MAX, Outputs HIGH
ICCL
Power Supply Current LOW
120
mA
VCC = MAX, Outputs LOW
ICCZ
Power Supply Current OFF
110
mA
VCC = MAX, Outputs OFF
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.
AC CHARACTERISTICS
TA = +25
°
C
TA = 0
°
C to +70
°
C
VCC = 5.0 V
±
10%
VCC = +5.0 V
CL = 50 pF
CL = 50 pF
Symbol
Parameter
Min
Max
Min
Max
Unit
tPLH
tPHL
Propagation Delay
An to Bn or Bn to An
2.5
2.5
6.0
6.6
2.5
2.5
7.0
7.1
ns
tPZH
tPZL
Output Enable Time
3.0
3.5
7.3
10.6
3.0
3.5
8.5
12.0
ns
tPHZ
tPLZ
Output Disable Time
2.5
2.0
6.5
6.5
2.5
2.0
7.5
7.5
ns
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