ST24FW21B6TR(1999) Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

ST24FW21B6TR
(Rev.:1999)

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

STMicroelectronics 

ST24LC21B, ST24LW21, ST24FC21, ST24FW21

Figure 3. Transmit Only Mode Waveforms

VCC

SCL

SDA

VCLK

tVPU

1

2

Bit 7

Bit 6

8

9

10

11

VCC

SCL

SDA

VCLK

Bit 6

Bit 5

Bit 4

12

13

Bit 0

17

18

Bit 7

Bit 6

19

20

AI01501

Table 4. I2C Operating Modes

Mode

RW

bit

ST24LC21B

ST24FC21

VCLK

Current Address

Read

’1’

X

Random Address

’0’

X

Read

’1’

X

Sequential Read

’1’

X

Byte Write

’0’

VIH

Page Write

’0’

VIH

Note: X = VIH or VIL

ST24LW21

ST24FW21

WC

X

X

X

X

VIH

VIH

Bytes

Initial Sequence

1

START, Device Select, RW = ’1’

1

1 to 128

1

8

START, Device Select, RW = ’0’, Address,

reSTART, Device Select, RW = ’1’

Similar to Current or Random Mode

START, Device Select, RW = ’0’

START, Device Select, RW = ’0’

4/21

Share Link: