74LS257中文资料PDF规格书
替换型号
- 8210040
- 443-802
- 74LS257
- 74LS257A
- 74LS257AN
- 74LS257APC
- 74LS257DC
- 74LS257N
- 74LS257PC
- 901521-57
- 9334DC
- 9334DM
- C74LS257P
- DM74LS257BN
- EAQOO-23600
- ECG74LS257
- HD74LS257
- HD74LS257P
- HE-443-1037
- HE-443-802
- HEPC74LS257P
- M74LS257AP
- MB74LS257
- MB74LS257M
- N74LS257AF
- N74LS257AN
- NTE74LS257
- SK74LS257
- SN74LS257
- SN74LS257AJ
- SN74LS257AJD
- SN74LS257AJDS
- SN74LS257AJS
- SN74LS257AN
- SN74LS257AND
- SN74LS257ANDS
- SN74LS257ANS
- SN74LS257BN
- SN74LS257J
- SN74LS257N
- SN74LS257X
- T74LS257B1
- TCG74LS257
74LS257规格书详情
General Description
These Schottky-clamped high-performance multiplexers feature 3-STATE outputs that can interface directly with data lines of bus-organized systems. With all but one of the common outputs disabled (at a high impedance state), the low impedance of the single enabled output will drive the bus line to a HIGH or LOW logic level. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the output enable circuitry is designed such that the output disable times are shorter than the output enable times.
Features
■ 3-STATE versions LS157 and LS158 with same pinouts
■ Schottky-clamped for significant improvement in A-C performance
■ Provides bus interface from multiple sources in high-performance systems
■ Average propagation delay from data input 12 ns
■ Typical power dissipation: 50 mW
产品属性
- 型号:
74LS257
- 制造商:
Mitsubishi Electric
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
21+ |
DIP |
13880 |
公司只售原装 支持实单 |
询价 | ||
FAIRCHILD/仙童 |
23+ |
NA/ |
80 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
FU |
2339+ |
DIP16 |
21322 |
公司原厂原装现货假一罚十!特价出售!强势库存! |
询价 | ||
MIT |
2020+ |
SOP3.9 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
N/A |
23+ |
SOP16 |
6000 |
只有原装正品,老板发话合适就出 |
询价 | ||
FAIRCHILD/仙童 |
198589 |
假一罚十原包原标签常备现货! |
询价 | ||||
FAIRCHILD/仙童 |
23+ |
50000 |
全新原装正品现货,支持订货 |
询价 | |||
FUJI/GS |
2122+ |
DIP |
17870 |
全新原装正品现货,假一赔十 |
询价 | ||
TI |
21+ |
DIP |
13880 |
公司只售原装,支持实单 |
询价 | ||
HIT |
22+23+ |
DIP |
30403 |
绝对原装正品全新进口深圳现货 |
询价 |