MX29F400BTA-12 View Datasheet(PDF) - Macronix International

Part Name

Description

Manufacturer

MX29F400BTA-12

4M-BIT [512Kx8/256Kx16] CMOS FLASH MEMORY

Macronix International 

MX29F400T/B

AUTOMATIC CHIP ERASE TIMING WAVEFORM

All data in chip are erased. External erase verification is

not required because data is erased automatically by

internal control circuit. Erasure completion can be veri-

fied by DATA polling and toggle bit checking after auto-

matic erase starts. Device outputs 0 during erasure

and 1 after erasure on Q7.(Q6 is for toggle bit; see toggle

bit, DATA polling, timing waveform)

AUTOMATIC CHIP ERASE TIMING WAVEFORM (WORD MODE)

Vcc 5V

A11~A17

A0~A10

WE

CE

OE

Q0,Q1,

Q4(Note 1)

Q7

555H

2AAH

555H

555H

2AAH

555H

tAS

tCWC

tAH

tCEPH1

tAETC

tCEP

tDS tDH

Command In

Command In

Command In

Command In

Command In

Command #AAH

(Q0~Q7)

Command In

Command #55H

Command In

Command #80H

Command In

Command #AAH

Command In

Command In

DATA polling

Command In

Command #55H

Command In

Command #10H

Notes:

(1). Q6:Toggle bit, Q5:Timing-limit bit, Q3: Time-out bit, Q2: Toggle bit

P/N:PM0439

REV. 1.6, NOV. 12, 2001

25

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