M76DW52003BA datasheet(4/27 Pages) STMICROELECTRONICS

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M76DW52003TA, M76DW52003BA

4/27

SUMMARY DESCRIPTION

The M76DW52003TA and M76DW52003BA are

low voltage Multiple Memory Products that com-

bine two memory devices; a 32 Mbit Dual Bank,

boot block Flash memory (M29DW323D(T/B)) and

a 4Mbit SRAM. This document should be read in

conjunction with the M29DW323D datasheet.

Recommended operating conditions do not allow

both the Flash and SRAM devices to be active at

the same time.

The

memory

offered

LFBGA73

(8 x 11.6mm, 0.8 mm pitch) package and is sup-

plied with all the bits erased (set to ‘1’).

Figure 2. Logic Diagram

Table 1. Signal Names

AI08712

A0-A20

VCCF

M76DW52003TA

M76DW52003BA

VSS

RPF

E1S

E2S

UBS

LBS

VPP/WP

VCCS

DQ0-DQ14

DQ15A–1

BYTE

A0-A17

Address Inputs common to the Flash

Memory and SRAM

A18-A20

Address Inputs for Flash Memory only

DQ0-DQ7

Data Inputs/Outputs

DQ8-DQ14

Data Inputs/Outputs

DQ15A–1

Data Input/Output or Address Input

Output Enable Input

Write Enable Input

VCCF

Flash Power Supply

VPP/WP

VPP/Write Protect

VSS

Ground

VCCS

SRAM Power Supply

VSSS

SRAM Ground

Not Connected Internally

Flash Memory Control Functions

Chip Enable Input

RPF

Reset/Block Temporary Unprotect

Ready/Busy Output

BYTE

Byte/Word Organization Select

SRAM Control Functions

E1S, E2S

Chip Enable Inputs

UBS

Upper Byte Enable Input

LBS

Lower Byte Enable Input

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