PCA9537 查看數據表（PDF） - Philips Electronics

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PCA9537

4-bit I2C and SMBus low power I/O port with interrupt and reset

Philips Electronics 

Philips Semiconductors

4-bit I2C and SMBus low power I/O port

with interrupt and reset

PULSE

GENERATOR

VI

RT

VCC

D.U.T.

RL = 500 Ω

VO

CL

50 pF

6.0 V

Open

DEFINITIONS

RL = Load resistor.

CL = Load capacitance includes jig and probe capacitance

RT = Termination resistance should be equal to the output

impedance ZO of the pulse generators.

Figure 17. Test circuitry for switching times

SW02142

From Output

Under Test

CL = 50 pF

500 Ω

500 Ω

2VDD

S1

Open

GND

Load Circuit

TEST

tpv

S1

2 VDD

SA00652

Figure 18. Test circuit

Product data sheet

PCA9537

2004 Nov 29

14

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