74HC257N中文資料數(shù)據(jù)手冊(cè)PDF規(guī)格書
| 廠商型號(hào) |
74HC257N |
| 功能描述 | Quad 2-input multiplexer; 3-state |
| 文件大小 |
185.52 Kbytes |
| 頁面數(shù)量 |
17 頁 |
| 生產(chǎn)廠商 | |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-9-8 8:20:00 |
| 人工找貨 | 74HC257N價(jià)格和庫存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
74HC257N規(guī)格書詳情
General description
The 74HC257; 74HCT257 are high-speed Si-gate CMOS devices and are pin compatible with Low-power Schottky TTL (LSTTL).
The 74HC257 and 74HCT257 have four identical 2-input multiplexers with 3-state outputs, which select 4 bits of data from two sources and are controlled by a common data select input (S).
The data inputs from source 0 (1I0 to 4I0) are selected when input S is LOW and the data inputs from source 1 (1I1 to 4I1) are selected when S is HIGH. Data appears at the outputs (1Y to 4Y) in true (non-inverting) form from the selected inputs.
The 74HC257 and 74HCT257 are the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to S. The outputs are forced to a high-impedance OFF-state when OE is HIGH.
特性 Features
■ Non-inverting data path
■ 3-state outputs interface directly with system bus
■ Complies with JEDEC standard no. 7A
■ ESD protection:
? HBM JESD22-A114E exceeds 2000 V
? MM JESD22-A115-A exceeds 200 V
■ Multiple package options
■ Specified from ?40 °C to +85 °C and from ?40 °C to +125 °C
產(chǎn)品屬性
- 型號(hào)：
74HC257N
- 功能描述：
編碼器、解碼器、復(fù)用器和解復(fù)用器 QUAD 2-IN MULTIPLXR 3-S
- RoHS：
否
- 制造商：
Micrel
- 產(chǎn)品：
Multiplexers
- 邏輯系列：
CMOS
- 線路數(shù)量（輸入/輸出）：
2/12
- 傳播延遲時(shí)間：
350 ps, 400 ps
- 電源電壓-最大：
2.625 V, 3.6 V
- 電源電壓-最小：
2.375 V, 3 V
- 最大工作溫度：
+ 85 C
- 安裝風(fēng)格：
SMD/SMT
- 封裝/箱體：
QFN-44
- 封裝：
Tray
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
mot |
24+ |
500000 |
行業(yè)低價(jià),代理渠道 |
詢價(jià) | |||
NEXPERIA/安世 |
25+ |
NA |
860000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價(jià) | ||
TI |
24+ |
DIP16 |
663300 |
鄭重承諾只做原裝進(jìn)口現(xiàn)貨 |
詢價(jià) | ||
恩XP |
21+ |
DIP |
150 |
原裝現(xiàn)貨假一賠十 |
詢價(jià) | ||
TI |
24+ |
DIP16 |
1130 |
原裝現(xiàn)貨假一罰十 |
詢價(jià) | ||
PHI |
24+ |
NA/ |
3265 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開票 |
詢價(jià) | ||
恩XP |
25+ |
DIP16 |
54815 |
百分百原裝現(xiàn)貨,實(shí)單必成,歡迎詢價(jià) |
詢價(jià) | ||
恩XP |
24+ |
200 |
詢價(jià) | ||||
PHIL. |
01+ |
45 |
公司優(yōu)勢(shì)庫存 熱賣中! |
詢價(jià) | |||
PHI |
25+ |
DIP16 |
525 |
全新原裝正品支持含稅 |
詢價(jià) |
