M76DW52003BA datasheet(8/27 Pages) STMICROELECTRONICS

部件名	M76DW52003BA

功能描述	32Mbit (4Mb x8/ 2Mb x16, Dual Bank, Boot Block) Flash Memory and 4Mbit (256Kb x16) SRAM, Multiple Memory Product

PDF	27 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

8 / 27 page

M76DW52003TA, M76DW52003BA

8/27

FUNCTIONAL DESCRIPTION

The Flash and SRAM components have separate

power supplies. They are distinguished by three

chip enable inputs: EF for the Flash memory and,

E1S and E2S for the SRAM.

Recommended operating conditions do not allow

both the Flash and the SRAM to be in active mode

at the same time. The most common example is

simultaneous read operations on the Flash and

the SRAM which would result in a data bus con-

tention. Therefore it is recommended to put the

SRAM in the high impedance state when reading

the Flash and vice versa (see Table 2 Main Oper-

ation Modes for details).

Figure 4. Functional Block Diagram

AI08714

Flash Memory

32 Mbit (x16)

RPF

E1S

E2S

UBS

LBS

DQ0-DQ15/A-1

VCCF

A18-A20

A0-A17

SRAM

4 Mbit (x16)

VSS

VCCS

VPP/WP

BYTE

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