PY291A datasheet(1/9 Pages) PYRAMID

部件名	PY291A

功能描述	2K X 8 REPROGRAMMABLE PROM

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制造商	PYRAMID [Pyramid Semiconductor Corporation]

网页	http://www.pyramidsemiconductor.com

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Document # EPROM101 REV OR

Revised June 2007

PY291A

2K X 8 REPROGRAMMABLE PROM

DESCRIPTION

The PY291A is a 2Kx8 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

1 is

LOW and CS

2 and CS3 are HIGH. The memory contents

in the address established by the Address pins (A

0 to A10)

will become available on the outputs (O

0 to O7).

The PY291A is available in 24-pin 300 mil Ceramic DIPs

(CERDIP, Windowed and Non-Windowed) and Plastic

DIPs (Non-Windowed).

FUNCTIONAL BLOCK DIAGRAM

PIN CONFIGURATION

FEATURES

EPROM Technology for reprogramming

High Speed

– 20/25/35/50 ns (Commercial)

– 35/50 ns (Military)

Low Power Operation: 660 mW

Single 5V±10% Power Supply

Windowed devices for reprogramming

Fully TTL Compatible Inputs and Outputs

Standard Pinout (JEDEC Approved)

– 24-Pin 300 mil DIP

– Windowed CERDIP

– Non-Windowed CERDIP

– Non-Windowed Plastic DIP

DIP (P4, D4, WD1)

Note: Window on WD1 package only

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类似说明 - PY291A

制造商	部件名	数据表	功能描述
Intersil Corporation	HM-6617	91Kb / 7P	2K x 8 CMOS PROM March 1997
Cypress Semiconductor	CY7C291A	275Kb / 12P	2K x 8 Reprogrammable PROM October 8, 2002
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Intersil Corporation	HM-6617	162Kb / 7P	2K x 8 CMOS PROM June 2004
Pyramid Semiconductor C...	PY264	135Kb / 8P	8K X 8 REPROGRAMMABLE PROM
Cypress Semiconductor	CY7C245A	396Kb / 13P	2K x 8 Reprogrammable Registered PROM
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