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參數資料
| 型號： | MC74ACT161DR |
| 廠商： | MOTOROLA INC |
| 元件分類： | 計數器 |
| 英文描述： | ACT SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16 |
| 封裝： | PLASTIC, SOIC-16 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 309K |
| 代理商： | MC74ACT161DR |
5-1
FACT DATA
Synchronous Presettable
Binary Counter
The MC74AC161/74ACT161 and MC74AC163/74ACT163 are high-speed
synchronous modulo-16 binary counters. They are synchronously presettable for
application in programmable dividers and have two types of Count Enable inputs
plus a Terminal Count output for versatility in forming synchronous multistage
counters. The MC74AC161/74ACT161 has an asynchronous Master Reset input
that overrides all other inputs and forces the outputs LOW. The MC74AC163/
74ACT163 has a Synchronous Reset input that overrides counting and parallel
loading and allows the outputs to be simultaneously reset on the rising edge of
the clock.
Synchronous Counting and Loading
High-Speed Synchronous Expansion
Typical Count Rate of 125 MHz
Outputs Source/Sink 24 mA
′ACT161 and ′ACT163 Have TTL Compatible Inputs
15
16
14
13
12
11
10
2
1
3
4
5
6
7
VCC
9
8
TC
Q0
Q1
Q2
Q3
CET
PE
*R
CP
P0
P1
P2
P3
CEP
GND
PIN NAMES
CEP
Count Enable Parallel Input
CET
Count Enable Trickle Input
CP
Clock Pulse Input
MR
(
′161) Asynchronous Master Reset Input
SR
(
′163) Synchronous Reset Input
P0–P3
Parallel Data Inputs
PE
Parallel Enable Input
Q0–Q3
Flip-Flop Outputs
TC
Terminal Count Output
MC74AC161
MC74ACT161
MC74AC163
MC74ACT163
SYNCHRONOUS
PRESETTABLE
BINARY COUNTER
N SUFFIX
CASE 648-08
PLASTIC
D SUFFIX
CASE 751B-05
PLASTIC
LOGIC SYMBOL
*MR for
′161
*SR for
′163
PE P0 P1 P2
CEP
P3
CET
CP
*R Q0 Q1 Q2 Q3
TC
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| MC74ACT20DCR1 | ACT SERIES, DUAL 4-INPUT NAND GATE, PDSO14 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MC74ACT161DR2 | 功能描述:計數器移位寄存器 5V Synchronous RoHS:否 制造商:Texas Instruments 計數器類型: 計數順序:Serial to Serial/Parallel 電路數量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| MC74ACT161DR2G | 功能描述:計數器移位寄存器 5V Synchronous Presettable Binary RoHS:否 制造商:Texas Instruments 計數器類型: 計數順序:Serial to Serial/Parallel 電路數量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| MC74ACT161M | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC74ACT161MEL | 功能描述:計數器 IC 5V Synchronous RoHS:否 制造商:NXP Semiconductors 計數器類型:Binary Counters 邏輯系列:74LV 位數:10 計數法: 計數順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| MC74ACT161MELG | 功能描述:計數器移位寄存器 5V Synchronous Presettable Binary RoHS:否 制造商:Texas Instruments 計數器類型: 計數順序:Serial to Serial/Parallel 電路數量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
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