参数资料
型号: SN74AS161D
厂商: TEXAS INSTRUMENTS INC
元件分类: 计数器
英文描述: AS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
封装: GREEN, PLASTIC, MS-012AC, SOIC-16
文件页数: 25/26页
文件大小: 900K
代理商: SN74AS161D
SN54ALS161B, SN54ALS162B, SN54ALS163B, SN54AS161, SN54AS163
SN74ALS161B, SN74ALS163B, SN74AS161, SN74AS163
SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SDAS276A – DECEMBER 1994 – REVISED JULY 2000
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating conditions (unless otherwise noted) (see
Figure 1)
SN54ALS161B
SN54ALS162B
SN54ALS163B
SN74ALS161B
SN74ALS163B
UNIT
MIN
MAX
MIN
MAX
fclock
Clock frequency
22
40
MHz
t
Pulse duration
CLR high or low
20
12.5
ns
tw
Pulse duration
’ALS161B
CLR low
20
15
ns
A, B, C, D
50
15
LOAD
20
15
’ALS161B
ENP ENT
25
15
tsu
Setup time, before CLK
SN54ALS162B, ’ALS163B
ENP, ENT
20
15
ns
’ALS161B
CLR inactive
10
SN54ALS162B ’ALS163B
CLR low
20
15
SN54ALS162B, ’ALS163B
CLR high
20
10
th
Hold time, all synchronous inputs after CLK
0
ns
switching characteristics over recommended operating conditions (unless otherwise noted) (see
Figure 1)
PARAMETER
FROM
TO
SN54ALS161B
SN74ALS161B
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
MAX
MIN
MAX
UNIT
fmax
22
40
MHz
tPLH
CLK
RCO
5
34
5
20
ns
tPHL
CLK
RCO
5
27
5
20
ns
tPLH
CLK
Any Q
4
19
4
15
ns
tPHL
CLK
Any Q
6
25
6
20
ns
tPLH
ENT
RCO
3
18
3
13
ns
tPHL
ENT
RCO
3
17
3
13
ns
tPHL
CLR
Any Q
8
27
8
24
ns
tPHL
CLR
RCO
11
32
11
23
ns
switching characteristics over recommended operating conditions (unless otherwise noted) (see
Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
SN54ALS162B
SN54ALS163B
SN74ALS163B
UNIT
(INPUT)
(OUTPUT)
MIN
MAX
MIN
MAX
fmax
22
40
MHz
tPLH
CLK
RCO
5
25
5
20
ns
tPHL
CLK
RCO
5
25
5
20
ns
tPLH
CLK
Any Q
4
18
4
15
ns
tPHL
CLK
Any Q
6
25
6
20
ns
tPLH
ENT
RCO
3
16
3
13
ns
tPHL
ENT
RCO
3
16
3
13
ns
相关PDF资料
PDF描述
SN74AS163NSR AS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
SN74AS162D AS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, PDSO16
SN74ALS162BD ALS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, PDSO16
SN74AS163DE4 AS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
SN74AS163DR AS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
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