L640DU90N(2007) データシートの表示（PDF） - Advanced Micro Devices

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L640DU90N
(Rev.:2007)

64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIO™ Control

Advanced Micro Devices 

AC CHARACTERISTICS

DATA SHEET

Addresses

CE#

WE#

tOEH

OE#

DQ6/DQ2

tDH

Valid Data

tAHT

tAS

tOEPH

tASO

tAHT

tCEPH

Valid

Status

(first read)

tOE

Valid

Status

(second read)

Valid

Status

(stops toggling)

Valid Data

RY/BY#

Note: VA = Valid address; not required for DQ6. Illustration shows first two status cycle after command sequence, last status

read cycle, and array data read cycle

Figure 19. Toggle Bit Timings

(During Embedded Algorithms)

WE#

Enter

Embedded

Erasing

Erase

Suspend

Enter Erase

Suspend Program

Erase

Erase Suspend

Read

Erase

Suspend

Program

Erase

Resume

Erase Suspend

Read

Erase

DQ6

Erase

Complete

DQ2

Note: DQ2 toggles only when read at an address within an erase-suspended sector. The system may use OE# or CE# to toggle

DQ2 and DQ6.

Figure 20. DQ2 vs. DQ6

January 22, 2007 22366C6

Am29LV640D/Am29LV641D

43

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