ST24LC21BM6TR(1999) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST24LC21BM6TR
(Rev.:1999)

1 Kbit (x8) Dual Mode Serial EEPROM for VESA PLUG & PLAY

STMicroelectronics 

Figure 14. Read Modes Sequence

ST24LC21B, ST24LW21, ST24FC21, ST24FW21

CURRENT

ADDRESS

READ

RANDOM

ADDRESS

READ

SEQUENTIAL

CURRENT

READ

SEQUENTIAL

RANDOM

READ

ACK

NO ACK

DEV SEL

DATA OUT

R/W

ACK

ACK

ACK

NO ACK

DEV SEL *

BYTE ADDR

DEV SEL *

DATA OUT

R/W

R/W

ACK

ACK

DEV SEL

DATA OUT 1

R/W

ACK

NO ACK

DATA OUT N

ACK

ACK

ACK

ACK

DEV SEL *

BYTE ADDR

DEV SEL *

DATA OUT 1

R/W

R/W

ACK

NO ACK

DATA OUT N

AI00794C

Note: * The 7 Most Significant bits of DEV SEL bytes of a Random Read (1st byte and 3rd byte) must be identical.

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