M27W801 datasheet(1/16 Pages) STMICROELECTRONICS

Il numero della parte	M27W801

Spiegazioni elettronici	8 Mbit 1Mb x8 Low Voltage UV EPROM and OTP EPROM

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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April 2000

M27W801

8 Mbit (1Mb x8) Low Voltage UV EPROM and OTP EPROM

s

2.7V to 3.6V SUPPLY VOLTAGE in READ

OPERATION

s

ACCESS TIME:

–80ns at VCC = 3.0V to 3.6V

– 100ns at VCC = 2.7V to 3.6V

s

PIN COMPATIBLE with M27C801

s

LOW POWER CONSUMPTION:

–15

µA max Standby Current

– 15mA max Active Current at 5MHz

s

PROGRAMMING TIME 50

µs/byte

s

HIGH RELIABILITY CMOS TECHNOLOGY

– 2,000V ESD Protection

– 200mA Latchup Protection Immunity

s

ELECTRONIC SIGNATURE

– Manufacturer Code: 20h

– Device Code: 42h

DESCRIPTION

The M27W801 is a low voltage 8 Mbit EPROM of-

fered 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 and is organized as 1,048,576 by

8 bits.

The M27W801 operates in the read mode with a

supply voltage as low as 2.7V at –40 to 85

°C tem-

perature range. The decrease in operating power

allows either a reduction of the size of the battery

or an increase in the time between battery re-

charges.

The FDIP32W (window ceramic frit-seal package)

has a transparent lids which allow the user to ex-

pose the chip to ultraviolet light to erase the bit pat-

tern. 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

M27W801 is offered in PDIP32, PLCC32 and

TSOP32 (8 x 20 mm) packages.

Figure 1. Logic Diagram

AI02363

20

A0-A19

Q0-Q7

VCC

M27W801

VSS

8

GVPP

E

1

32

FDIP32W (F)

PLCC32 (K)

TSOP32 (N)

8 x 20 mm

32

1

PDIP32 (B)

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