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M27V400 - 4 Mbit 512Kb x8 or 256Kb x16 UV EPROM and OTP EPROM

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General Description

The M27V400 is an 4 Mbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable).

It is ideally suited for microprocessor systems requiring large data or program storage.

It is organised as either 512 Kwords of 8 bit or 256 Kwords of 16 bit.

Overview

M27V400 4 Mbit (512Kb x8 or 256Kb x16) UV EPROM and OTP EPROM NOT FOR NEW DESIGN s s M27V400 is replaced by the M27W400 3V to 3.6V LOW VOLTAGE in READ OPERATION ACCESS TIME: 100ns BYTE-WIDE or WORD-WIDE CONFIGURABLE 4 Mbit MASK ROM REPLACEMENT LOW POWER CONSUMPTION – Active Current 30mA at 8MHz – Stand-by Current 20µA 40 40 s s s s 1 1 FDIP40W (F) PDIP40 (B) s s s PROGRAMMING VOLTAGE: 12.5V ± 0.25V PROGRAMMING TIME: 50µs/word ELECTRONIC SIGNATURE – Manufacturer Code: 20h – Device Code: B8h Figure 1.

Key Features

  • a 2-line control function which accommodates the use of multiple memory connection. The two-line control function allows: a. the lowest possible memory power dissipation b. complete assurance that output bus contention will not occur. For the most efficient use of these two control lines, E should be decoded and used as the primary device selecting function, while G should be made a common connection to all devices in the array and connected to the READ line from the system control bus. This en.

More Datasheets from STMicroelectronics

Part Number Description
M27V401 4 Mbit 512Kb x8 Low Voltage UV EPROM and OTP EPROM
M27V402 4 Mbit 256Kb x 16 Low Voltage UV EPROM and OTP EPROM
M27V405 4 Mbit 512Kb x 8 Low Voltage OTP EPROM
M27V101 1 Mbit 128Kb x 8 Low Voltage UV EPROM and OTP EPROM
M27V102 1 Mbit 64Kb x 16 Low Voltage UV EPROM and OTP EPROM
M27V160 16 Mbit 2Mb x8 or 1Mb x16 Low Voltage UV EPROM and OTP EPROM
M27V201 2 Mbit 256Kb x 8 Low Voltage UV EPROM and OTP EPROM
M27V256 256 Kbit 32Kb x 8 Low Voltage UV EPROM and OTP EPROM
M27V320 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM
M27V322 32 Mbit 2Mb x16 Low Voltage UV EPROM and OTP EPROM