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参数资料
| 型号： | SN74LS161ADR2 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 计数器 |
| 英文描述： | LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16 |
| 封装： | PLASTIC, SOIC-16 |
| 文件页数： | 6/8页 |
| 文件大小： | 199K |
| 代理商： | SN74LS161ADR2 |
SN74LS161A, SN74LS163A
http://onsemi.com
6
Figure 3.
The positive TC pulse occurs when the outputs are in the (Q0
Q1 Q2 Q3) state for the LS161 and LS163.
OTHER CONDITIONS: CP = PE = CEP = MR = H
1.3 V
tPHL
tPLH
1.3 V
CET
TC
AC WAVEFORMS (continued)
The positive TC pulse is coincident with the output state
(Q0 Q1 Q2 Q3) for the LS161 and LS163.
Figure 4.
OTHER CONDITIONS: PE = CEP = CET = MR = H
1.3 V
tPLH
tPHL
CP
TC
The shaded areas indicate when the input is permitted to
change for predictable output performance.
Figure 5.
1.3 V
OTHER CONDITIONS: PE = L, MR = H
CP
1.3 V
ts(H)
ts(L)
th(H) = 0
th(L) = 0
Q0 w Q1 w Q2 w Q3
P0 w P1 w P2 w P3
OTHER CONDITIONS: PE = H, MR = H
1.3 V
ts(H)
ts(L)
th(H) = 0
th(L) = 0
ts(H)
th(H) = 0
ts(L)
th(L) = 0
COUNT
HOLD
CEP
CP
CET
Q
CP
SR or PE
Q RESPONSE TO PE
RESET
COUNT OR LOAD
Q RESPONSE TO SR
PARALLEL LOAD
(See Fig. 5)
COUNT MODE
(See Fig. 7)
ts(L)
ts(H)
th
(L) = 0
th(H) = 0
1.3 V
Figure 6.
COUNT ENABLE TRICKLE INPUT
TO TERMINAL COUNT OUTPUT DELAYS
CLOCK TO TERMINAL COUNT DELAYS
SETUP TIME (ts) AND HOLD TIME (th)
FOR PARALLEL DATA INPUTS
SETUP TIME (ts) AND HOLD TIME (th) FOR
COUNT ENABLE (CEP) AND (CET) AND
PARALLEL ENABLE (PE) INPUTS
Figure 7.
The shaded areas indicate when the input is permitted to
change for predictable output performance.
1.3 V
相关PDF资料 |
PDF描述 |
|---|---|
| SN74LS161AN | LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LS161ADRE4 | 功能描述:计数器 IC 4-Bit Synchronous Binary Counters RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
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| SN74LS161AM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS161AMEL | 制造商:ON Semiconductor 功能描述:Counter Single 4-Bit Sync Binary UP 16-Pin SO EIAJ T/R 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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