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AM27C256-90中文資料超威半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

AM27C256-90
廠商型號(hào)

AM27C256-90

功能描述

256 Kilobit (32,768 x 8-Bit) CMOS EPROM

文件大小

90.58 Kbytes

頁(yè)面數(shù)量

12 頁(yè)

生產(chǎn)廠商 Advanced Micro Devices
企業(yè)簡(jiǎn)稱

AMD超威半導(dǎo)體

中文名稱

美國(guó)超威半導(dǎo)體公司官網(wǎng)

原廠標(biāo)識(shí)
數(shù)據(jù)手冊(cè)

下載地址一下載地址二到原廠下載

更新時(shí)間

2025-3-20 22:58:00

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AM27C256-90規(guī)格書(shū)詳情

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

產(chǎn)品屬性

  • 型號(hào):

    AM27C256-90

  • 制造商:

    Rochester Electronics LLC

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