Philips PCF8570 Data Sheet
Summary
This datasheet introduces the PCF8570, a low-voltage, 256x8-bit static RAM featuring an integrated I²C bus interface. Ideal for applications requiring ultra-low power consumption—such as battery-operated or portable systems in telephony, medical, and general purpose electronics—the device provides reliable memory expansion. The comprehensive manual covers everything needed for integration, including detailed protocols (I²C-bus), low-voltage operation specifics, handling procedures, package outlines, and application examples.
Page 1 Text Content
INTEGRATED CIRCUITS
DATA SHEET
PCF8570 8-bit static low-voltage RAM with I2C-bus interface
Product specification Jan
Supersedes data of 1997 Sep File under Integrated Circuits, IC12
Page Summary Contents For Philips PCF8570 Data Sheet
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INTEGRATED CIRCUITS DATA SHEET PCF8570 8-bit static low-voltage RAM with I2C-bus interface Product specification Jan Supersedes data of 1997 Sep File under Integrated Circuits, IC12
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface CONTENTS FEATURES APPLICATIONS GENERAL DESCRIPTION QUICK REFERENCE DATA ORDERING INFORMATION BL...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface FEATURES Operating supply voltage 2.5 to 6.0 Low data retention voltage; minimum 1.0 Low standb...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface BLOCK DIAGRAM handbook, full pagewidth WORD MEMORY PCF8570 ADDRESS CELL SELECT REGISTER ARRAY S...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface CHARACTERISTICS OF THE I2C-BUS 8.1 Bit transfer The I2C-bus is for bidirectional, two-line comm...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface 8.3 System configuration A device generating a message is a ‘transmitter’, a device receiving a...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface 8.5 I2C-bus protocol Before any data is transmitted on the I2C-bus, the device which should res...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface andbook, full pagewidth acknowledgement acknowledgement acknowledgement from slave from slave f...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface DC CHARACTERISTICS VDD 2.5 to 6.0 V; VSS V; Tamb −40 to +85 °C; unless otherwise specified. SYM...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface AC CHARACTERISTICS All timing values are valid within the operating supply voltage and ambient ...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface APPLICATION INFORMATION 13.1 Application example handbook, full pagewidth MASTER TRANSMITTER/ R...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface 13.2 Slave address The PCF8570 has a fixed combination 1 0 as group 1, while group 2 is fully p...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface handbook, full pagewidth SDA A2 SCL A1 PCF8570 1.2 V (Ni Cd) MICROCONTROLLER (1) TEST A0 VSS ML...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface se at in pl an PACKAGE OUTLINES DIP8: plastic dual in-line package; 8 leads (300 mil) SOT97-1 p...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface SO8: plastic small outline package; 8 leads; body width 7.5 mm SOT176-1 pin 1 index detail X 10...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface SOLDERING Typical reflow peak temperatures range from to °C. The top-surface temperature of the...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface 15.4 Suitability of IC packages for wave, reflow and dipping soldering methods SOLDERING METHOD...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal s...
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Philips Semiconductors Product specification 8-bit static low-voltage RAM with PCF8570 I2C-bus interface NOTES
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Philips Semiconductors – a worldwide company Argentina: see South America Middle East: see Italy Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg....
Manual Details
| Brand | Philips |
|---|---|
| Pages | 20 |
| File Size | 114.60 KB |
| Published | July 15, 2026 |
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Frequently Asked Questions
What is the permissible operating voltage range?
The device operates on a supply voltage between 2.5 V and 6.0 V.
How low can the power consumption be in standby mode?
In power-saving mode, the typical standby current is very low (around 50 nA).
Is data transfer synchronous or asynchronous?
Data is transferred serially using a two-line, bidirectional interface (I²C-bus) controlled by clock pulses.
What are the physical package options available?
It is available in both DIP8 and SO8 packages for mounting.