PCF8570P datasheet(12/20 Pages) PHILIPS

Part #	PCF8570P

Description	256 x 8-bit static low-voltage RAM with I2C-bus interface

PDF	20 Pages

Scroll/Zoom	100%

Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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12 / 20 page

1999 Jan 06

Philips Semiconductors

Product speciﬁcation

256

× 8-bit static low-voltage RAM with

I2C-bus interface

PCF8570

13.2

Slave address

The PCF8570 has a fixed combination 1 0 1 0 as group 1, while group 2 is fully programmable (see Fig.12).

13.3

Power-saving mode

With the condition TEST = VDD or VDDR the PCF8570 goes into the power-saving mode and I2C-bus logic is reset.

Fig.12 Slave address.

handbook, halfpage

MLB892

A2A1A0 R/W

group 1

group 2

Fig.13 Timing for power-saving mode.

(1) Power-saving mode without 5 V supply voltage.

(2) Power-saving mode with 5 V supply voltage.

(3) tSU and tHD1 ≥ 4 µs and tHD2 ≥ 50 µs.

handbook, full pagewidth

MLB932

,,,

power saving

mode (1)

TEST = VDDR

power saving

mode (2)

TEST = VDD

operating mode

TEST

SCL

SDA

VDD

IDD

VDD

VDDR

0 V

VDD

VDDR

0 V

VDD

VDDR

0 V

VDD

VDDR

0 V

IDD

IDDS

t SU

t HD1

t SU

t HD2

(3)

PCF8570P Datasheet(PDF) 12 Page - NXP Semiconductors

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