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AM27C256-45PC中文资料PDF规格书
AM27C256-45PC规格书详情
GENERAL DESCRIPTION
The Am27C256 is a 256K-bit ultraviolet erasable programmable read-only memory. It is organized as 32K words by 8 bits per word, operates from a single +5 V supply, has a static standby mode, and features fast single address location programming. Products are available in windowed ceramic DIP packages as well as plastic one time programmable (OTP) PDIP, TSOP, and PLCC packages.
Typically, any byte can be accessed in less than 55 ns, allowing operation with high-performance microprocessors without any WAIT states. The Am27C256 offers separate Output Enable (OE) and Chip Enable (CE) controls, thus eliminating bus contention in a multiple bus microprocessor system.
AMD’s CMOS process technology provides high speed, low power, and high noise immunity. Typical power consumption is only 80 mW in active mode, and 100 µW in standby mode.
All signals are TTL levels, including programming signals. Bit locations may be programmed singly, in blocks, or at random. The Am27C256 supports AMD’s Flashrite programming algorithm (100 µs pulses) resulting in typical programming time of 4 seconds.
DISTINCTIVE CHARACTERISTICS
■ Fast access time
— 55 ns
■ Low power consumption
— 20 µA typical CMOS standby current
■ JEDEC-approved pinout
■ Single +5 V power supply
■ ±10 power supply tolerance available
■ 100 Flashrite programming
— Typical programming time of 4 seconds
■ Latch-up protected to 100 mA from –1 V to VCC + 1 V
■ High noise immunity
■ Versatile features for simple interfacing
— Both CMOS and TTL input/output compatibility
— Two line control functions
■ Standard 28-pin DIP, PDIP, 32-pin TSOP and PLCC packages
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
23+ |
N/A |
12550 |
正品授权货源可靠 |
询价 | |||
AMD |
CDIP |
5000 |
国内领先的集成电路专业配单!量大可发货!可开17%增值 |
询价 | |||
AMD |
23+ |
DIP |
5000 |
专注配单,只做原装进口现货 |
询价 | ||
AMD |
2015+ |
DIP |
19889 |
一级代理原装现货,特价热卖! |
询价 | ||
AMD |
22+ |
DIP |
8200 |
全新原装现货!自家库存! |
询价 | ||
Rochester |
21+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
AMD |
22+ |
CDIP |
11190 |
原装正品 |
询价 | ||
AMD |
23+24 |
DIP- |
9680 |
原盒原标.进口原装.支持实单 .价格优势 |
询价 | ||
AMD |
23+ |
589610 |
新到现货 原厂一手货源 价格秒杀代理! |
询价 | |||
一级代理 |
22+ |
N/A |
46100 |
一级代理放心采购 |
询价 |