74LS191中文資料仙童半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)
| 廠商型號(hào) |
74LS191 |
| 功能描述 | Synchronous 4-Bit Up/Down Counter with Mode Control |
| 文件大小 |
72.73 Kbytes |
| 頁(yè)面數(shù)量 |
6 頁(yè) |
| 生產(chǎn)廠商 | Fairchild Semiconductor |
| 企業(yè)簡(jiǎn)稱(chēng) |
Fairchild【仙童半導(dǎo)體】 |
| 中文名稱(chēng) | 飛兆/仙童半導(dǎo)體公司官網(wǎng) |
| 原廠標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-1-28 9:48:00 |
替換型號(hào)
74LS191規(guī)格書(shū)詳情
General Description
The DM74LS191 circuit is a synchronous, reversible, up/down counter. Synchronous operation is provided by having all flip-flops clocked simultaneously, so that the outputs change simultaneously when so instructed by the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple clock) counters.
Features
■ Counts binary
■ Single down/up count control line
■ Count enable control input
■ Ripple clock output for cascading
■ Asynchronously presettable with load control
■ Parallel outputs
■ Cascadable for n-bit applications
■ Average propagation delay 20 ns
■ Typical clock frequency 25 MHz
■ Typical power dissipation 100 mW
產(chǎn)品屬性
- 型號(hào)：
74LS191
- 制造商：
NTE Electronics
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
XINBOLE/芯伯樂(lè) |
23+ |
DIP16 |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
詢價(jià) | ||
N/A |
23+ |
DIP-16 |
18933 |
原廠授權(quán)代理,海外優(yōu)勢(shì)訂貨渠道。可提供大量庫(kù)存,詳 |
詢價(jià) | ||
TI |
24+ |
CDIP |
16800 |
絕對(duì)原裝進(jìn)口現(xiàn)貨,假一賠十,價(jià)格優(yōu)勢(shì)!? |
詢價(jià) | ||
SIGNETICS * NOW PHILIPS * |
2023+ |
NULL |
8700 |
原裝現(xiàn)貨 |
詢價(jià) | ||
2020+ |
DIP |
80000 |
只做自己庫(kù)存,全新原裝進(jìn)口正品假一賠百,可開(kāi)13%增 |
詢價(jià) | |||
Sig |
23+ |
DIP |
8890 |
價(jià)格優(yōu)勢(shì)、原裝現(xiàn)貨、客戶至上。歡迎廣大客戶來(lái)電查詢 |
詢價(jià) | ||
FAIRCHILD |
82+ |
50 |
原裝正品現(xiàn)貨庫(kù)存價(jià)優(yōu) |
詢價(jià) | |||
松下 |
23+ |
DIP |
3200 |
全新原裝、誠(chéng)信經(jīng)營(yíng)、公司現(xiàn)貨銷(xiāo)售 |
詢價(jià) | ||
05+ |
100 |
原裝正品 |
詢價(jià) | ||||
FUJI |
23+ |
DIP |
10000 |
原裝正品現(xiàn)貨 |
詢價(jià) |
