W55412A データシートの表示（PDF） - Winbond

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W55412A

VOICE PROM (256K OTP)

Winbond 

W55412A

VOICE PROM (256K OTP)

GENERAL DESCRIPTION

The W55412A is a 256K × 1 bit one-time programmable (OTP) ROM. The W55412A is designed for

easy cascading with Winbond speech ICs to emulate sounds and functions. The W55412A data ROM

allows synthesis of messages of up to 12 seconds in duration (not including repetition or silence).

FEATURES

• Provides RDP, WRP, and DATA pins to cascade with Winbond speech ICs

• Data and address are processed in serial form

• Suitable for low pin count applications (8-pin DIP)

• Low power consumption:

− Operating: 3 mA (max.)

− Standby: 1µA (max.)

• Programming voltage (VPP): 12 to 12.5V

• Operating voltage range: 3 to 5V

• Organized as 256K × 1 bit

• Data access time: 500 nS (max.)

PIN CONFIGURATION

V PP

1

MCLK/PREDATA

2

VSS

3

WRP

4

8

MODE/PGM/CLK

7

VDD

6

RDP

5

DATA

Publication Release Date: May 1996

-1-

Revision A2

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