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參數(shù)資料
| 型號： | MC74AC190 |
| 廠商： | Motorola, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | UP/DOWN COUNTER WITH PRESET AND RIPPLE CLOCK |
| 中文描述： | 向上/向下符合預設和脈動時鐘計數(shù)器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 211K |
| 代理商： | MC74AC190 |
5-1
FACT DATA
The MC74AC190 is a reversible BCD (8421) decade counter which features
synchronous counting and asynchronous presetting. The preset feature allows
the MC74AC190 to be used in programmable dividers. The Count Enable input,
the Terminal Count output and the Ripple Clock output make possible a variety
of methods of implementing multistage counters. In the counting modes, state
changes are initiated by the rising edge of the clock.
High-Speed — 120 MHz Typical Count Frequency
Synchronous Counting
Asynchronous Parallel Load
Cascadable
Outputs Source/Sink 24 mA
15
16
14
13
12
11
10
2
1
3
4
5
6
7
VCC
9
8
P0
CP
RC
TC
PL
P2
P3
P1
Q1
Q0
CE
U/D
Q2
Q3
GND
PIN NAMES
CE
CP
P0–P3
PL
U/D
Q0–Q3
RC
TC
Count Enable Input
Clock Pulse Input
Parallel Data Inputs
Asynchronous Parallel Load Input
Up/Down Count Control Input
Flip-Flop Outputs
Ripple Clock Output
Terminal Count Output
UP/DOWN COUNTER
WITH PRESET
AND RIPPLE CLOCK
N SUFFIX
CASE 648-08
PLASTIC
D SUFFIX
CASE 751B-05
PLASTIC
LOGIC SYMBOL
PL P0P1P2P3
U/D
RC
TC
CE
CP
Q0
Q1
Q2
Q3
相關PDF資料 |
PDF描述 |
|---|---|
| MC74AC190N | UP/DOWN COUNTER WITH PRESET AND RIPPLE CLOCK |
| MC74AC20N | DUAL 4-INPUT NAND GATE |
| MC74AC20 | DUAL 4-INPUT NAND GATE |
| MC74ACT20D | DUAL 4-INPUT NAND GATE |
| MC74ACT20N | DUAL 4-INPUT NAND GATE |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC74AC190D | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:UP/DOWN COUNTER WITH PRESET AND RIPPLE CLOCK |
| MC74AC190DR2 | 制造商:Motorola Inc 功能描述: |
| MC74AC190N | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述: |
| MC74AC194 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:4-Bit Bidirectional Universal Shift Register |
| MC74AC194D | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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