FM34W02U データシートの表示（PDF） - Fairchild Semiconductor

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FM34W02U

2K-Bit Standard 2-Wire Bus Interface Serial EEPROM with Full Array Write Protect

Fairchild Semiconductor 

Current Address Read (Figure 8)

S

T

S

Bus Activity: A

SLAVE

T

Master

R ADDRESS

O

T

P

SDA Line

A

C

DATA

K

Random Read (Figure 9)

S

S

T

T

S

Bus Activity: A

Master

R

T

SLAVE

ADDRESS

BYTE

ADDRESS

A

SLAVE

R

ADDRESS

T

T

O

P

SDA Line

A

A

C

C

K

K

A

C

DATA n

K

Sequential Read (Figure 10)

Bus Activity:

Master

SLAVE

ADDRESS

SDA Line

A

C

K

DATA n

A

A

A

C

C

C

K

K

K

DATA n +1

DATA n + 2

Typical System Configuration (Figure 11)

S

T

O

P

DATA n + x

VCC

SDA

SCL

Master

Transmitter/

Receiver

Slave

Receiver

Slave

Transmitter/

Receiver

Note: Due to open drain configuration of SDA, a bus-level resistor is called for

(Typical value = 4.7Ω)

Master

Transmitter

Master

Transmitter/

Receiver

FM34W02U Rev. A.1

10

www.fairchildsemi.com

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