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參數(shù)資料
| 型號(hào)： | 74F191SC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Up/Down Binary Counter with Preset and Ripple Clock |
| 中文描述： | F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16 |
| 封裝： | 0.150 INCH, SOP-16 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大小： | 104K |
| 代理商： | 74F191SC |
Philips Semiconductors
Product specification
74F191
Up/Down binary counter with reset and ripple clock
1995 Jul 17
4
MODE SELECT — FUNCTION TABLE
INPUTS
OUTPUTS
OPERATING MODE
PL
U/D
CE
CP
D
n
Q
n
L
L
X
X
X
X
X
X
L
H
L
H
Parallel load
H
L
l
↑
X
Count up
Count up
H
H
l
↑
X
Count down
Count down
H
X
H
X
X
No change
Hold (do nothing)
TC AND RC FUNCTION TABLE
INPUTS
TERMINAL COUNT STATE
OUTPUTS
U/D
CE
CP
Q
0
H
Q
1
H
Q
2
H
Q
3
H
TC
RC
H
H
X
L
H
L
L
H
L
X
H
H
H
H
H
H
H
H
H
H
H
L
H
X
L
L
L
L
L
H
H
H
H
L
X
L
L
L
L
L
L
L
L
H
H
H
H = High voltage level steady state
L = Low voltage level steady state
X = Don’t care
= Low pulse
↑
= Low-to-High clock transition
l
= Low voltage level one set-up time prior to the Low-to-High clock transition
相關(guān)PDF資料 |
PDF描述 |
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| 74F191SJ | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191PC | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191 | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191SC | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191SJ | Up/Down Binary Counter with Preset and Ripple Clock |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F191SCQB | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191SCX | 功能描述:計(jì)數(shù)器移位寄存器 Up/Down Binary Ctr RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| 74F191SJ | 功能描述:計(jì)數(shù)器移位寄存器 Up/Down Binary Ctr RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| 74F191SJ_Q | 功能描述:計(jì)數(shù)器 IC Up/Down Binary Ctr RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)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 |
| 74F191SJCQB | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Up/Down Binary Counter with Preset and Ripple Clock |
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