SN54AS867, SN54AS869
SN74ALS867A, SN74ALS869, SN74AS867, SN74AS869
SYNCHRONOUS 8-BIT UP/DOWN COUNTERS
SDAS115C – DECEMBER 1982 – REVISED JANUARY 1995
logic symbols (continued)
†
′AS867
S0
S1
ENT
ENP
CLK
1
2
11
23
14
0
1
G4
G5
CTRDIV 256
0
M
3
1,4,5CT=0
3,4,5CT=255
13
RCO
C6/1,4,5 – /3,4,5 +
0R
2,6D
22
21
20
19
18
17
16
15
QA
QB
QC
QD
QE
QF
QG
QH
A
B
C
D
E
F
G
H
3
4
5
6
7
8
9
10
′AS869
S0
S1
ENT
ENP
CLK
1
2
11
23
14
0
1
G4
G5
CTRDIV 256
0
M
3
1,4,5CT=0
3,4,5CT=255
13
RCO
C6/1,4,5 – /3,4,5 +
0,6R
2,6D
22
21
20
19
18
17
16
15
QA
QB
QC
QD
QE
QF
QG
QH
A
B
C
D
E
F
G
H
3
4
5
6
7
8
9
10
† These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the DW, JT, and NT packages.
4
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