HD74HC149中文資料瑞薩數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)
HD74HC149規(guī)格書(shū)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(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
HITACHI/日立 |
23+ |
DIP |
10000 |
原廠授權(quán)一級(jí)代理,專業(yè)海外優(yōu)勢(shì)訂貨,價(jià)格優(yōu)勢(shì)、品種 |
詢價(jià) | ||
RENESAS |
2022 |
SOP |
5500 |
原廠原裝正品,價(jià)格超越代理 |
詢價(jià) | ||
HITACHI |
23+ |
SOP5.2 |
7635 |
全新原裝優(yōu)勢(shì) |
詢價(jià) | ||
RENESAS/瑞薩 |
2022 |
SOP |
80000 |
原裝現(xiàn)貨,OEM渠道,歡迎咨詢 |
詢價(jià) | ||
RENESAS/瑞薩 |
22+ |
SOP |
9000 |
原裝正品 |
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) | ||
HIT |
22+23+ |
SOP14 |
8000 |
新到現(xiàn)貨，只做原裝進(jìn)口 |
詢價(jià) | ||
HIT |
23+ |
SOP14 |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
詢價(jià) | ||
RENESAS/瑞薩 |
/ROHS.original |
原封 |
22102 |
電子元件,供應(yīng) -正納電子/ 元器件IC -MOS -MCU. |
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) |
