X4643, X4645

FN8123 Rev 0.00

Page 16 of 21

March 29, 2005

TIMING DIAGRAMS

Bus Timing

WP Pin Timing

Write Cycle Timing

Nonvolatile Write Cycle Timing

Notes: (1) tWC is the time from a valid stop condition at the end of a write sequence to the end of the self-timed internal nonvolatile write cycle. It is

the minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.

Symbol

Parameter

Min.

Typ.(1)

Max.

Unit

tWC(1)

Write Cycle Time

5

10

ms

tSU:STO

tDH

tHIGH

tSU:STA

tHD:STA

tHD:DAT

tSU:DAT

SCL

SDA IN

SDA OUT

tF

tLOW

tBUF

tAA

tR

tHD:WP

SCL

SDA IN

WP

tSU:WP

Clk 1

Clk 9

Slave Address Byte

START

SCL

SDA

tWC

8th bit of Last Byte

ACK

Stop

Condition

Start

Condition