AM50DL128CH85IS datasheet(54/66 Pages) SPANSION

Part #	AM50DL128CH85IS

Description	Two Am29DL640G 64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memories

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Manufacturer	SPANSION [SPANSION]

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54 / 66 page

Am50DL128CH

February 6, 2004

ADV ANCE

I N FO RMAT I O N

FLASH AC CHARACTERISTICS

tGHEL

tWS

OE#

CE#f

WE#

RESET#

tDS

Data

tAH

Addresses

tDH

tCP

DQ7#

DOUT

tWC

tAS

tCPH

Data# Polling

A0 for program

55 for erase

tRH

tWHWH1 or 2

RY/BY#

tWH

PD for program

30 for sector erase

10 for chip erase

555 for program

2AA for erase

PA for program

SADD for sector erase

555 for chip erase

tBUSY

Notes:

1. Figure indicates last two bus cycles of a program or erase operation.

2. PA = program address, SADD = sector address, PD = program data.

3. DQ7# is the complement of the data written to the device. D

OUT is the data written to the device.

4. CE#f refers to active flash device being addressed (either CE#f1 or CE#f2). The chip enable input of the inactive flash device must

be held high during this operation.

5. Waveforms are for the word mode.

Figure 26.

Flash Alternate CE#f Controlled Write (Erase/Program) Operation Timings

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