27C512 datasheet(4/22 Pages) STMICROELECTRONICS

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M27C512

4/22

SUMMARY DESCRIPTION

The M27C512 is a 512 Kbit EPROM offered in the

two ranges UV (ultra violet erase) and OTP (one

time programmable). It is ideally suited for applica-

tions where fast turn-around and pattern experi-

mentation are important requirements and is

organized as 65536 by 8 bits.

The FDIP28W (window ceramic frit-seal package)

has transparent lid which allows 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

M27C512 is offered in PDIP28, PLCC32 and

TSOP28 (8 x 13.4 mm) packages.

In addition to the standard versions, the packages

are also available in Lead-free versions, in compli-

ance with JEDEC Std J-STD-020B, the ST ECO-

PACK 7191395 Specification, and the RoHS

(Restriction of Hazardous Substances) directive.

Figure 2. Logic Diagram

Table 1. Signal Names

A0-A15

Address Inputs

Q0-Q7

Data Outputs

Chip Enable

GVPP

Output Enable / Program Supply

VCC

Supply Voltage

VSS

Ground

Not Connected Internally

Don’t Use

AI00761B

Q0-Q7

VCC

M27C512

GVPP

VSS

A0-A15

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