M36DR432DA85ZA6T datasheet(2/46 Pages) STMICROELECTRONICS

Part #	M36DR432DA85ZA6T

Description	32 Mbit 2Mb x16, Dual Bank, Page Flash Memory and 4 Mbit 256K x16 SRAM, Multiple Memory Product

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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M36DR432C, M36DR432D

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DESCRIPTION

The M36DR432 is a multichip memory device con-

taining a 32 Mbit boot block Flash memory and a

4Mbit of SRAM. Thedeviceis offered in aStacked

LFBGA66 (0.8 mm pitch) package.

The two components are distinguished by use with

three chip enable inputs: EF for the Flash memory

and, E1S and E2S for the SRAM. The two compo-

nents are also separately power supplied and

grounded.

Figure 2. Logic Diagram

Table 1. Signal Names

AI05522

21

A0-A20

EF

DQ0-DQ15

M36DR432C

M36DR432D

GF

VSSF

16

WF

RPF

WPF

E1S

E2S

GS

WS

UBS

LBS

VSSS

VDDF VPPF VDDS

A0-A17

Address Inputs

A18-A20

Address Inputs for Flash Chip only

DQ0-DQ15

Data Input/Output

VDDF

Flash Power Supply

VPPF

Flash Optional Supply Voltage for Fast

Program & Erase

VSSF

Flash Ground

VDDS

SRAM Power Supply

VSSS

SRAM Ground

NC

Not Connected Internally

Flash control functions

EF

Chip Enable input

GF

Output Enable input

WF

Write Enable input

RPF

Reset input

WPF

Write Protect input

SRAM control functions

E1S, E2S

Chip Enable input

GS

Output Enable input

WS

Write Enable input

UBS

Upper Byte Enable input

LBS

Lower Byte Enable input

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