PCA8550D datasheet(6/8 Pages) TI

部件名	PCA8550D

功能描述	NONVOLATILE 5-BIT REGISTER WITH I2C INTERFACE

PDF	8 Pages

Scroll/Zoom	100%

制造商	TI [Texas Instruments]

网页	http://www.ti.com

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6 / 8 page

PCA8550

NONVOLATILE 5-BIT REGISTER

WITH I2C INTERFACE

SCPS050A – MARCH 1999 – REVISED APRIL 1999

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

PARAMETER MEASUREMENT INFORMATION

DUT

RL = 1 kΩ

VO = 3.3 V

CL = 10 pF or

CL = 400 pF

GND

Tbuf

Ticr

Tsth

Tsds

Tsdh

ticf

ticr

Tscl

Tsch

Tsts

tPHL

tPLH

0.7

× VCC

Stop

Condition

Tsps

Repeat

Start

Condition

Start or

Repeat

Start

Condition

SCL

SDA

Start

Condition

(S)

Bit 7

MSB

Bit 6

Bit 0

LSB

(R/W)

Acknowledge

(A)

Stop

Condition

(P)

2 Bytes for Complete Device

Programming

LOAD CIRCUIT

VOLTAGE WAVEFORMS

Ticf

Stop

Condition

(P)

Tsp

tsu

2.7 V

0 V

1.5 V

0.3

× VCC

0.7

× VCC

0.3

× VCC

BYTE

DESCRIPTION

I2C address

Nonvolatile register data

Figure 1. I2C Interface Load Circuit and Voltage Waveforms

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