74AC257B中文资料PDF规格书
74AC257B规格书详情
DESCRIPTION
The AC257 is an advanced high-speed CMOS QUAD 2 CHANNEL MULTIPLEXER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power applications mantaining high speed operation similar to equivalent Bipolar Schottky TTL.
■ HIGH SPEED: tPD =4.5 ns (TYP.) at VCC = 5V
■ LOW POWER DISSIPATION: ICC =8 µA (MAX.) at TA =25 oC
■ HIGH NOISE IMMUNITY: VNIH = VNIL = 28 VCC (MIN.)
■ 50Ω TRANSMISSIONLINE DRIVING CAPABILITY
■ SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24 mA (MIN)
■ BALANCED PROPAGATIONDELAYS: tPLH ≅ tPHL
■ OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V
■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 257
■ IMPROVEDLATCH-UP IMMUNITY
产品属性
- 型号:
74AC257B
- 功能描述:
编码器、解码器、复用器和解复用器 Quad 2-Ch Multiplexr
- RoHS:
否
- 制造商:
Micrel
- 产品:
Multiplexers
- 逻辑系列:
CMOS
- 线路数量(输入/输出):
2/12
- 传播延迟时间:
350 ps, 400 ps
- 电源电压-最大:
2.625 V, 3.6 V
- 电源电压-最小:
2.375 V, 3 V
- 最大工作温度:
+ 85 C
- 安装风格:
SMD/SMT
- 封装/箱体:
QFN-44
- 封装:
Tray
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
Fairchild/ON |
21+ |
16TSSOP |
13880 |
公司只售原装 支持实单 |
询价 | ||
ST |
22+ |
SOP-16 |
2987 |
只售原装自家现货!诚信经营!欢迎来电! |
询价 | ||
ON Semiconductor |
21+ |
16-TSSOP |
56300 |
一级代理/放心采购 |
询价 | ||
Fairchild |
23+ |
33500 |
询价 | ||||
onsemi |
23/22+ |
NA |
9000 |
代理渠道.实单必成 |
询价 | ||
onsemi |
24+ |
16-TSSOP(0.173,4.40mm 宽) |
9350 |
独立分销商,公司只做原装,诚心经营,免费试样正品保证 |
询价 | ||
STMicroelect |
23+ |
16-SOIC |
8795 |
询价 | |||
ST/意法 |
23+ |
SOP16 |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
STMicroelectronics |
2019+ |
16-SO |
65500 |
原装正品货到付款,价格优势! |
询价 | ||
FAIRCHILD/仙童 |
2021+ |
10078 |
原厂授权代理,海外优势订货渠道。可提供大量库存,详 |
询价 |