PY264-55WM datasheet(1/8 Pages) PYRAMID

Part #	PY264-55WM

Description	8K X 8 REPROGRAMMABLE PROM

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Manufacturer	PYRAMID [Pyramid Semiconductor Corporation]

Direct Link	http://www.pyramidsemiconductor.com

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Document # EPROM102 REV OR

Revised July 2007

PY264

8K X 8 REPROGRAMMABLE PROM

DESCRIPTION

The PY264 is an 8Kx8 CMOS PROM. The device is

available in windowed packages which when exposed to

UV light, the memory content in the PROM is erased and

can be reprogrammed. EPROM technology is used in

the memory cells for programming. The EPROM re-

quires a 12.5V for programming. Devices are tested to

insure that performance of the device meets the DC and

AC specification limits after customer programming.

To perform a read operation from the device,

CS is LOW.

The memory contents in the address established by the

Address pins (A

0 to A12) will become available on the

outputs (O

0 to O7).

The PY264 is available in 24-pin 600 mil Ceramic DIPs

(Windowed) and Plastic DIPs (Non-Windowed).

FUNCTIONAL BLOCK DIAGRAM

PIN CONFIGURATION

FEATURES

EPROM Technology for reprogramming

High Speed

– 35/45/55 ns (Commercial)

– 35/45/55 ns (Military)

Low Power Operation:

– 660 mW Commercial

– 770 mW Military

Single 5V±10% Power Supply

Windowed devices for reprogramming

Fully TTL Compatible Inputs and Outputs

Standard Pinout (JEDEC Approved):

– 24-Pin 600 mil Windowed CERDIP

– 24-Pin 600 mil Non-Windowed Plastic DIP

DIP (P8, WD2)

Note: Window on

WD2 package only

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PY264-55WM Datasheet(PDF) 1 Page - Pyramid Semiconductor Corporation

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