參數資料
型號: SNJ54LV161AW
廠商: Texas Instruments, Inc.
英文描述: Small Signal Darlington NPN; Package: SOT-23 (TO-236) 3 LEAD; No of Pins: 3; Container: Tape and Reel; Qty per Container: 3000
中文描述: 4位同步二進制計數器
文件頁數: 8/20頁
文件大?。?/td> 440K
代理商: SNJ54LV161AW
SCLS404E APRIL 1998 REVISED APRIL 2005
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range, V
CC
= 2.5 V
±
0.2 V
(unless otherwise noted) (see Figure 1)
TA = 25
°
C
MIN
7
SN54LV161A
MIN
7
SN74LV161A
MIN
7
UNIT
MAX
MAX
MAX
tw
Pulse duration
CLK high or low
ns
CLR low
7
7
7
CLR
4.5
4.5
4.5
tsu
Setup time before CLK
Data (A, B, C, and D)
7.5
8.5
8.5
ns
ENP, ENT
9.5
11
11
LOAD low
10
11.5
11.5
th
Hold time, all synchronous inputs after CLK
1.5
1.5
1.5
ns
timing requirements over recommended operating free-air temperature range, V
CC
= 3.3 V
±
0.3 V
(unless otherwise noted) (see Figure 1)
TA = 25
°
C
MIN
5
SN54LV161A
MIN
5
SN74LV161A
MIN
5
UNIT
MAX
MAX
MAX
tw
Pulse duration
CLK high or low
ns
CLR low
5
5
5
CLR
2.5
2.5
2.5
tsu
Setup time before CLK
Data (A, B, C, and D)
5.5
6.5
6.5
ns
ENP, ENT
7.5
9
9
LOAD low
8
9.5
9.5
th
Hold time, all synchronous inputs after CLK
1
1
1
ns
timing requirements over recommended operating free-air temperature range, V
CC
= 5 V
±
0.5 V
(unless otherwise noted) (see Figure 1)
TA = 25
°
C
MIN
5
SN54LV161A
MIN
5
SN74LV161A
MIN
5
UNIT
MAX
MAX
MAX
tw
Pulse duration
CLK high or low
ns
CLR low
5
5
5
CLR
1.5
1.5
1.5
tsu
Setup time before CLK
Data (A, B, C, and D)
4.5
4.5
4.5
ns
ENP, ENT
5
6
6
LOAD low
5
6
6
th
Hold time, all synchronous inputs after CLK
1
1
1
ns
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