參數(shù)資料
型號: SN54AS161J
廠商: TEXAS INSTRUMENTS INC
元件分類: 計數(shù)器
英文描述: AS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDIP16
封裝: CERAMIC, DIP-16
文件頁數(shù): 2/26頁
文件大?。?/td> 900K
代理商: SN54AS161J
SN54ALS161B, SN54ALS162B, SN54ALS163B, SN54AS161, SN54AS163
SN74ALS161B, SN74ALS163B, SN74AS161, SN74AS163
SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SDAS276A – DECEMBER 1994 – REVISED JULY 2000
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating conditions (see Figure 1)
SN54AS161
SN54AS163
SN74AS161
SN74AS163
UNIT
MIN
MAX
MIN
MAX
fclock
Clock frequency
65
75
MHz
t
Pulse duration
CLR high or low
7.7
6.7
ns
tw
Pulse duration
’AS161
CLR low
10
8
ns
A, B, C, D
10
8
LOAD
10
8
t
Setup time before CLK
ENP, ENT
10
8
ns
tsu
Setup time, before CLK
’AS161
CLR inactive
10
8
ns
’AS163
CLR low
14
12
’AS163
CLR high (inactive)
10
9
th
Hold time, all synchronous inputs after CLK
2
0
ns
switching characteristics over recommended operating conditions (see Figure 1)
PARAMETER
FROM
TO
SN54AS161
SN74AS161
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
MAX
MIN
MAX
UNIT
fmax
65*
75
MHz
tPLH
CLK
RCO (with LOAD high)
1
8.5
1
8
ns
tPLH
CLK
RCO (with LOAD low)
3
17.5
3
16.5
ns
tPHL
CLK
RCO
2
14
2
12.5
ns
tPLH
CLK
Any Q
1
7.5
1
7
ns
tPHL
CLK
Any Q
2
14
2
13
ns
tPLH
ENT
RCO
1.5
10
1.5
9
ns
tPHL
ENT
RCO
1
9.5
1
8.5
ns
tPHL
CLR
Any Q
2
14
2
13
ns
tPHL
CLR
RCO
2
14
2
12.5
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
switching characteristics over recommended operating conditions (see Figure 1)
PARAMETER
FROM
TO
SN54AS163
SN74AS163
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
MAX
MIN
MAX
UNIT
fmax
65*
75
MHz
tPLH
CLK
RCO (with LOAD high)
1
8.5
1
8
ns
tPLH
CLK
RCO (with LOAD low)
3
17.5
3
16.5
ns
tPHL
CLK
RCO
2
14
2
12.5
ns
tPLH
CLK
Any Q
1
7.5
1
7
ns
tPHL
CLK
Any Q
2
14
2
13
ns
tPLH
ENT
RCO
1.5
10
1.5
9
ns
tPHL
ENT
RCO
1
9.5
1
8.5
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
相關(guān)PDF資料
PDF描述
SN74AS161D AS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
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
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