SN74LS669D 查看數據表（PDF） - ON Semiconductor
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SN74LS669D Datasheet PDF : 4 Pages
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CONNECTION DIAGRAM (TOP VIEW)
VCC
RIPPLE
CARRY
OUTPUT
QA
OUTPUTS
QB QC
ENABLE
T
QD
LOAD
16 15 14 13 12 11 10 9
RIPPLE
CARRY
QA
QB
QC
QD
ENABLE
T
OUTPUT
LOAD
UP/DOWN
ENABLE
CK A
B
CD
P
1 2 3 4 56 78
U/D CK A
B
C
D
ENABLE
P
GND
DATA INPUTS
(9) LOAD
(7) ENP
(10) ENT
(1) U/D
(3)
DATA
P0
(4)
DATA
P1
SN74LS669
LOGIC DIAGRAM
(5)
DATA
P2
(6)
DATA
P3
RCO (15)
(RIPPLE CARRY
OUTPUT)
(2) CP
CP D
QA
(14)
CP D
QB
(13)
CP D
QC
(12)
CP D
QD
(11)
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA
Operating Ambient Temperature Range
IOH
Output Current — High
IOL
Output Current — Low
Min
Typ
Max
Unit
54
4.5
5.0
5.5
V
74
4.75
5.0
5.25
54
− 55
25
125
°C
74
0
25
70
54, 74
− 0.4
mA
54
4.0
mA
74
8.0
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