SN54ALS160B Datasheet, PDF (2/11 Pages) Texas Instruments – SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS

SN54ALS160B, SN54ALS162B, SN54AS160, SN54AS162
SN74ALS160B, SN74ALS162B, SN74AS160, SN74AS162
SYNCHRONOUS 4-BIT BINARY COUNTERS
SDAS024A – D2661, APRIL 1982 – REVISED MAY 1986
logic symbols^†
’ALS160B AND ’AS160 BINARY
COUNTERS WITH DIRECT CLEAR
CLR ¹
LOAD ⁹
CTRDIV10
CT=0
M1
ENT ¹⁰
ENP ⁷
CLK ²
M2
15
3CT = 9
G3
G4
C5/2,3,4+
A3
1,5D [1]
14
B4
13
[2]
C5
12
[4]
D6
11
[8]
RCO
QA
QB
QC
QD
’ALS162B AND ’AS162 BINARY
COUNTERS WITH SYNCHRONOUS CLEAR
CLR ¹
LOAD ⁹
CTRDIV10
5CT=0
M1
ENT ¹⁰
ENP ⁷
CLK ²
M2
3CT = 9
G3
G4
C5/2,3,4+
15
RCO
A3
B4
C5
D6
1,5D [1]
[2]
[4]
[8]
14
QA
13
QB
12
QC
11
QD
’ALS160B and ’AS160 logic diagram (positive logic)
CLR ¹
LOAD ⁹
ENT
ENP
10
7
15
RCO
CLK ²
A3
14
C1
QA
1D
R
13
C1
QB
1D
R
B4
12
C1
QC
1D
R
C5
11
C1
QD
1D
R
D6
† _{These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.}
Pin numbers shown are for D, J, and N packages.
’ALS162B and ’AS162 decade counters are similar; however the clear is synchronous as shown for the ’ALS163B and ’AS163 binary counters.
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