HD74HC149中文資料瑞薩數(shù)據(jù)手冊(cè)PDF規(guī)格書
HD74HC149規(guī)格書詳情
Description
The HD74HC149 is priority encoder which has 8 input lines (0 - 7) and 8 output lies (Y0 - Y7).
It is the logical combination of a HD74HC148 8-3 line priority encoder driving a HD74HC138 3-8 line decoder.
Only one request output can be low at a time. The output that is low is dependent on the highest priority request that is low. The order of priority is 7 highest and 0 lowest.
Features
? High Speed Operation: tpd (0 - 7 to Y) = 16 ns typ (CL = 50 pF)
? High Output Current: Fanout of 10 LSTTL Loads
? Wide Operating Voltage: VCC = 2 to 6 V
? Low Input Current: 1 μA max
? Low Quiescent Supply Current: ICC (static) = 4 μA max (Ta = 25°C)
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
RENESAS |
22+ |
SOP14 |
8000 |
原裝正品支持實(shí)單 |
詢價(jià) | ||
24+ |
SOP |
100 |
詢價(jià) | ||||
RENESAS/瑞薩 |
22+ |
SOP |
9000 |
原裝正品 |
詢價(jià) | ||
HIT |
24+ |
SOP14 |
5000 |
全新原裝正品,現(xiàn)貨銷售 |
詢價(jià) | ||
HIT |
98+ |
SOP14 |
60 |
一級(jí)代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價(jià) | ||
RENESAS |
23+ |
NA |
575 |
專做原裝正品,假一罰百! |
詢價(jià) | ||
HITACHI/日立 |
22+ |
SOP-14 |
9600 |
原裝現(xiàn)貨,優(yōu)勢(shì)供應(yīng),支持實(shí)單! |
詢價(jià) | ||
HITACHI |
1922+ |
SOP |
8200 |
萊克訊原廠貨源每一片都來自原廠原裝現(xiàn)貨薄利多 |
詢價(jià) | ||
JAT |
23+ |
SOT |
52659 |
##公司主營(yíng)品牌長(zhǎng)期供應(yīng)100%原裝現(xiàn)貨可含稅提供技術(shù) |
詢價(jià) | ||
HITACHI |
23+ |
SOP5.2 |
7635 |
全新原裝優(yōu)勢(shì) |
詢價(jià) |
