HN27C256HP-85 Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics

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Fabricante

HN27C256HP-85

32768-word × 8-bit CMOS One Time Electrically Programmable ROM

Hitachi -> Renesas Electronics 

HN27C256HP/HFP Series

Fast High-Reliability Programming Timing Waveform

Address

Data

VPP

VCC

VPP

VCC

VCC + 1

VCC

CE

OE

Program

tAS

Data In Stable

tDS

tDH

tVPS

tVCS

tPW

Program Verify

tAH

Data Out Valid

tDF

tOES

tOE

High Performance Programming

This device can be applied the high performance programming algorithm shown in following flowchart. This

algorithm is as same as our 256-kbit EPROM series so existing programmers can be used with this device.

This algorithm allows to obtain faster programming time without any voltage stress to the device nor

deterioration in reliability of programmed data.

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