74LS190中文資料摩托羅拉數(shù)據(jù)手冊(cè)PDF規(guī)格書
| 廠商型號(hào) |
74LS190 |
| 功能描述 | PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS |
| 文件大小 |
310.01 Kbytes |
| 頁(yè)面數(shù)量 |
10 頁(yè) |
| 生產(chǎn)廠商 | Motorola, Inc |
| 企業(yè)簡(jiǎn)稱 |
Motorola【摩托羅拉】 |
| 中文名稱 | 加爾文制造公司官網(wǎng) |
| 原廠標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-3-13 22:50:00 |
| 人工找貨 | 74LS190價(jià)格和庫(kù)存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
替換型號(hào)
74LS190規(guī)格書詳情
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS
PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS
The SN54/74LS190 is a synchronous UP/DOWN BCD Decade (8421) Counter and the SN54/74LS191 is a synchronous UP/DOWN Modulo-16 Binary Counter. State changes of the counters are synchronous with the LOW-to-HIGH transition of the Clock Pulse input.
An asynchronous Parallel Load (PL) input overrides counting and loads the data present on the Pn inputs into the flip-flops, which makes it possible to use the circuits as programmable counters. A Count Enable (CE) input serves as the carry /borrow input in multi-stage counters. An Up/Down Count Control (U/D) input determines whether a circuit counts up or down. A Terminal Count (TC) output and a Ripple Clock (RC) output provide overflow/underflow indication and make possible a variety of methods for generating carry/borrow signals in multistage counter applications.
? Low Power . . . 90 mW Typical Dissipation
? High Speed . . . 25 MHz Typical Count Frequency
? Synchronous Counting
? Asynchronous Parallel Load
? Individual Preset Inputs
? Count Enable and Up/Down Control Inputs
? Cascadable
? Input Clamp Diodes Limit High Speed Termination Effects
產(chǎn)品屬性
- 型號(hào)：
74LS190
- 制造商：
MOTOROLA
- 制造商全稱：
Motorola, Inc
- 功能描述：
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
MOT |
23+ |
NA |
20000 |
全新原裝假一賠十 |
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13%增 |
詢價(jià) | |||
XINBOLE/芯伯樂 |
23+ |
NA/ |
16602 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開票 |
詢價(jià) | ||
MITSUBISHI/三菱 |
24+ |
DIP16 |
990000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價(jià) | ||
FAIRCHILD |
81/26 |
205 |
原裝正品現(xiàn)貨庫(kù)存價(jià)優(yōu) |
詢價(jià) | |||
MITSUBISHI/三菱 |
23+ |
DIP16 |
6850 |
只做原廠原裝正品現(xiàn)貨!假一賠十! |
詢價(jià) | ||
松下 |
23+ |
DIP |
3200 |
全新原裝、誠(chéng)信經(jīng)營(yíng)、公司現(xiàn)貨銷售 |
詢價(jià) | ||
FAIRCHILD |
23+ |
NA |
19960 |
只做進(jìn)口原裝,終端工廠免費(fèi)送樣 |
詢價(jià) | ||
PANASON |
2016+ |
DIP14 |
6528 |
只做進(jìn)口原裝現(xiàn)貨!假一賠十! |
詢價(jià) | ||
FAI |
24+ |
N/A |
21322 |
公司原廠原裝現(xiàn)貨假一罰十!特價(jià)出售!強(qiáng)勢(shì)庫(kù)存! |
詢價(jià) |
