SN54LS490中文資料摩托羅拉數(shù)據(jù)手冊PDF規(guī)格書
SN54LS490規(guī)格書詳情
The SN54/74LS490 contains a pair of high-speed 4-stage ripple counters. Each half of the SN54/74LS490 has individual Clock, Master Reset and Master Set (Preset 9) inputs. Each section counts in the 8, 4, 2, 1 BCD code.
? Dual Version of SN54/74LS490
? Individual Asynchronous Clear and Preset to 9 for Each Counter
? Count Frequency — Typically 65 MHz
? Input Clamp Diodes Limit High-Speed Termination Effects
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
FSC |
23+ |
NA |
8000 |
全新原裝假一賠十 |
詢價 | ||
TI |
24+ |
DIP |
2800 |
原裝現(xiàn)貨!可長期供貨! |
詢價 | ||
TI |
92+ |
DIP |
31 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
TI/TEXAS |
23+ |
DIP陶瓷 |
8931 |
詢價 | |||
TI |
25+ |
DIP |
3000 |
全新原裝、誠信經(jīng)營、公司現(xiàn)貨銷售! |
詢價 | ||
MOTOROLA/摩托羅拉 |
QQ咨詢 |
DIP-16 |
826 |
全新原裝 研究所指定供貨商 |
詢價 | ||
TI |
DIP |
320 |
正品原裝--自家現(xiàn)貨-實單可談 |
詢價 | |||
TI |
2016+ |
DIP |
6528 |
只做進口原裝現(xiàn)貨!或訂貨,假一賠十! |
詢價 | ||
TI |
17+ |
DIP |
6200 |
100%原裝正品現(xiàn)貨 |
詢價 | ||
23+ |
11200 |
原廠授權(quán)一級代理、全球訂貨優(yōu)勢渠道、可提供一站式BO |
詢價 |
