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DESCRIPTION

The M27C202 is a 2 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 programs, in the application where the contents is stable and needs to be programmed only one time, and is or ganised as 131,072 by 16 bits.

The FDIP40W (window ceramic frit-seal package) has a transparent lids which allow the user to expose 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 M27C202 is offered in PDIP40, PLCC44 and TSOP40 (10 x 14 mm) packages.

■ 5V ± 10 SUPPLY VOLTAGE in READ OPERATION

■ ACCESS TIME: 45ns

■ LOW POWER CONSUMPTION:

– Active Current 50mA at 5MHz

– Standby Current 100μA

■ PROGRAMMING VOLTAGE: 12.75V ± 0.25V

■ PROGRAMMING TIME: 100μs/word

■ ELECTRONIC SIGNATURE

– Manufacturer Code: 20h

– Device Code: 1Ch