PCA9560 查看數據表（PDF） - NXP Semiconductors.

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PCA9560

8-bit I2C and SMBus I/0 port with reset

NXP Semiconductors. 

Philips Semiconductors

Dual 5-bit multiplexed 1-bit latched

I2C EEPROM DIP switch

Product data

PCA9560

SDA

tBUF

tLOW

tR

tF

SCL

P

tHD;STA

S

tHD;DAT

tHIGH

tSU;DAT

tHD;STA

tSU;STA

Sr

Figure 12. Definition of timing

tSP

tSU;STO

P

SU00645

MUX INPUT

VM

VM

tPHL

MUX OUTPUT

VM

tPLZ

VO

VOL + 0.3V

VOL

SW00500

Figure 13. Open drain output enable and disable times

VCC

VO

VIN

PULSE

GENERATOR

VOUT

RL

D.U.T.

RT

CL

Test Circuit for Open Drain Outputs

DEFINITIONS

RL = Load resistor; 1 kΩ

CL = Load capacitance includes jig and probe capacitance;

10 pF

RT = Termination resistance should be equal to ZOUT of

pulse generators.

Figure 14. Test circuit

SW00510

2003 Jun 27

13

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