87C257中文资料PDF规格书
87C257规格书详情
Description
The M87C257 is a 256 Kbit EPROM offered in the two ranges UV (ultra violet erase) and LButtonOTP (one time programmable). It incorporates latches for all address inputs to minimize chip count, reduce cost, and simplify the design of multiplexed bus systems and is organized as 32,768 by 8 bits.
The FDIP28W (window ceramic frit-seal package) has a transparent lid which allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure.
For applications where the content is programmed only one time and erasure is not required, the M87C257 is offered in PLCC32 package.
Feature summary
■ 5V ± 10 supply voltage in Read operation
■ Integrated address latch
■ Access time: 45ns
■ Low power consumption:
– Active Current 30mA
– Standby Current 100µA
■ Programming voltage: 12.75V ± 0.25V
■ Programming times of around 3s
■ Electronic signature
– Manufacturer Code: 20h
– Device Code: 80h
■ ECOPACK® packages available
产品属性
- 型号:
87C257
- 制造商:
STMICROELECTRONICS
- 制造商全称:
STMicroelectronics
- 功能描述:
ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TOSHIBA/东芝 |
22+ |
QFP |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
TOSHIBA/东芝 |
22+ |
QFP |
9845 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
TOSHIBA/Toshiba Semiconductor/ |
21+ |
SOP28 |
150 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
TI |
7 |
原装正品长期供货,如假包赔包换 徐小姐13714450367 |
询价 | ||||
TOS |
22+23+ |
SOP |
33189 |
绝对原装正品全新进口深圳现货 |
询价 | ||
TOSHIBA |
2023+ |
SOP28 |
700000 |
柒号芯城跟原厂的距离只有0.07公分 |
询价 | ||
TOSHIBA |
23+ |
SOP-28 |
3200 |
全新原装、诚信经营、公司现货销售 |
询价 | ||
TOSHIBA |
23+ |
SOP28 |
9800 |
现货库存,全新原装,特价销售 |
询价 | ||
TI |
23+ |
589610 |
新到现货 原厂一手货源 价格秒杀代理! |
询价 | |||
TOSHIBA |
22+ |
SMD28 |
2987 |
只售原装自家现货!诚信经营!欢迎来电! |
询价 |