M50FLW080ANB5G datasheet(3/64 Pages) STMICROELECTRONICS

Part #	M50FLW080ANB5G

Description	8 Mbit (13 x 64KByte Blocks 3 x 16 x 4KByte Sectors), 3V Supply Firmware Hub / Low Pin Count Flash Memory

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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3 / 64 page

M50FLW080A, M50FLW080B

Contents

3/64

3.2

Address/Address multiplexed (A/A Mux) bus operations . . . . . . . . . . . . . 19

3.2.1

Bus Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2.2

Bus Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2.3

Output Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2.4

Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4

Command interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.1

Read Memory Array command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.2

Read Status Register command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.3

Read Electronic Signature command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.4

Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.5

Quadruple Byte Program command (A/A Mux interface) . . . . . . . . . . . . . 27

4.6

Double/Quadruple Byte Program command (FWH mode) . . . . . . . . . . . . 27

4.7

Chip Erase command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.8

Block Erase command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.9

Sector Erase command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.10

Clear Status Register command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.11

Program/Erase Suspend command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.12

Program/Erase Resume command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5

Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.1

Program/Erase Controller status (bit SR7) . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2

Erase Suspend status (bit SR6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.3

Erase status (bit SR5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.4

Program status (bit SR4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.5

VPP status (bit SR3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.6

Program Suspend status (bit SR2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.7

Block/Sector Protection status (bit SR1) . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.8

Reserved (bit SR0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6

Firmware Hub/low-pin-count (FWH/LPC) interface

Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.1

Lock Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.1.1

Write Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.1.2

Read Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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