29F400B-12TI 参数 Datasheet PDF下载

BRIGHT

Microelectronics

Inc.

Preliminary BM29F400T/BM29F400B

Start

RESET = V_ID

(Note 1)

Perform Erase or

Program Operations

RESET = V_IH

Temporary Sector

Unprotect Completed

(Note 2)

Figure 17. Temporary Sector Unprotect Algorithm

Notes:

1. All protected sector groups unprotected.

2. All previously protected sector groups are protected again.

12V

RESET

t_VIDR

t_RSP

Program or Erase Command Sequence

RY/BY

Figure 18. Temporary Unprotect Timing Diagram

A Winbond Company

Publication Release Date: May 1999

Revision A1

- 31 -

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