FAN54010UCX 查看數據表（PDF） - Fairchild Semiconductor

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FAN54010UCX

USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator

Fairchild Semiconductor 

I2C Timing Specifications

Guaranteed by design.

Symbol

Parameter

tFDA SDA Fall Time

tSU;STO Stop Condition Setup Time

CB Capacitive Load for SDA, SCL

Conditions

Standard Mode

Fast Mode

High-Speed Mode, CB < 100pF

High-Speed Mode, CB < 400pF

Standard Mode

Fast Mode

High-Speed Mode

Min. Typ.

20+0.1CB

20+0.1CB

10

20

4

600

160

Max.

300

300

80

160

400

Unit

ns

s

ns

ns

pF

Timing Diagrams

tF

SDA

SCL

tHD;STA

START

tR

tLOW

tSU;STA

tHIGH

tHD;DAT

TSU;DAT

tHD;STA

REPEATED

START

Figure 5. I2C Interface Timing for Fast and Slow Modes

tBUF

tHD;STO

STOP

START

tFDA

tRDA

tSU;DAT

SDAH

tSU;STA

tRCL1

tFCL

tRCL

SCLH

tHD;STA

tLOW

tHIGH

tHD;DAT

REPEATED

START

note A

REPEATED

START

STOP

tSU;STO

= MCS Current Source Pull-up

= RP Resistor Pull-up

Note A: First rising edge of SCLH after Repeated Start and after each ACK bit.

Figure 6. I2C Interface Timing for High-Speed Mode

© 2011 Fairchild Semiconductor Corporation

FAN5401X Family • Rev. 1.0.2

10

www.fairchildsemi.com

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