PCA9501 datasheet(17/22 Pages) PHILIPS

tên linh kiện	PCA9501

Giải thích chi tiết về linh kiện	8-bit I2C and SMBus I/O port with interrupt, 2-kbit EEPROM and 6 address pins

PDF	22 Pages

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nhà sản xuất	PHILIPS [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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Philips Semiconductors

Product data

PCA9501

8-bit I2C and SMBus I/O port with interrupt,

2-kbit EEPROM and 6 address pins

2003 Sep 12

handbook, full pagewidth

SCL

SDA

MBD820

BIT 0

LSB

(R/W)

HD;STA

SU;DAT

HD;DAT

VD;DAT

SU;STO

BUF

SU;STA

1 / f

SCL

START

CONDITION

(S)

BIT 7

MSB

(A7)

BIT 6

(A6)

ACKNOWLEDGE

(A)

STOP

CONDITION

(P)

SW00561

PROTOCOL

Figure 22.

POWER-UP TIMING

SYMBOL

PARAMETER

MAX.

UNIT

tPUR1

Power-up to Read Operation

tPUW1

Power-up to Write Operation

NOTE:

1. tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated. These parameters are

guaranteed by design.

WRITE CYCLE LIMITS

SYMBOL

PARAMETER

MIN.

TYP. (5)

MAX.

UNIT

tWR1

Write Cycle Time

—

NOTE:

1. tWR is the maximum time that the device requires to perform the internal write operation.

Write Cycle Timing

SCL

SDA

8th Bit

Word n

ACK

Stop

Condition

Start

Condition

MEMORY

ADDRESS

tWR

SW00560

Figure 23.

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