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參數(shù)資料
| 型號： | SN54LS393J |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER |
| 中文描述： | LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDIP14 |
| 封裝： | CERAMIC, DIP-14 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大小： | 71K |
| 代理商： | SN54LS393J |
5-4
FAST AND LS TTL DATA
SN54/74LS390
SN54/74LS393
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
b l
Parameter
Limits
U i
Unit
Test Conditions
di i
Min
Typ
Max
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.7
V
Guaranteed Input LOW Voltage for
All Inputs
74
0.8
VIK
Input Clamp Diode Voltage
–0.65
–1.5
V
VCC = MIN, IIN = –18 mA
VOH
Output HIGH Voltage
54
2.5
3.5
V
VCC = MIN, IOH = MAX,
,OH
or VIL per Truth Table
74
2.7
3.5
V
IN
IH
VOL
Output LOW Voltage
54, 74
0.25
0.4
V
IOL = 4.0 mA
VCC = VCC MIN,
VIN= VILor VIH
VIN = VIL or VIH
per Truth Table
74
0.35
0.5
V
IOL = 8.0 mA
IIH
Input HIGH Current
20
μ
A
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
0.1
mA
IIL
Input LOW Current
MR
–0.4
mA
VCC = MAX, VIN = 0.4 V
MAX V
0 4 V
CP, CP0
CP1
–1.6
mA
–2.4
mA
IOS
ICC
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
Short Circuit Current (Note 1)
–20
–100
mA
VCC = MAX
VCC = MAX
Power Supply Current
26
mA
AC CHARACTERISTICS
(TA = 25
°
C, VCC = 5.0 V)
Symbol
b l
Parameter
Limits
U i
Unit
Test Conditions
di i
Min
Typ
Max
fMAX
Maximum Clock Frequency
CP0 to Q0
25
35
MHz
CL = 15 pF
15 F
15 F
15 F
15 F
fMAX
Maximum Clock Frequency
CP1 to Q1
20
MHz
tPLH
tPHL
Propagation Delay,
CP to Q0
LS393
12
13
20
20
ns
tPLH
tPHL
CP0 to Q0
LS390
12
13
20
20
ns
tPLH
tPHL
CP to Q3
LS393
40
40
60
60
ns
tPLH
tPHL
CP0 to Q2
LS390
37
39
60
60
ns
tPLH
tPHL
CP1 to Q1
LS390
13
14
21
21
ns
tPLH
tPHL
CP1 to Q2
LS390
24
26
39
39
ns
tPLH
tPHL
CP1 to Q3
LS390
13
14
21
21
ns
tPHL
MR to Any Output
LS390/393
24
39
ns
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