PCF8570

General description

The PCF8570 is a low power static CMOS RAM, organized as 256 words by 8-bits.

Addresses and data are transferred serially via a two-line bidirectional bus (I²C-bus). The built-in word address register is incremented automatically after each written or read data byte. Three address pins, A0, A1 and A2 are used to define the hardware address, allowing the use of up to 8 devices connected to the bus without additional hardware.

Features

• Operating supply voltage 2.5 to 6.0 V
• Low data retention voltage; minimum 1.0 V
• Low standby current; maximum 15 µA
• Power-saving mode; typical 50 nA
• Serial input/output bus (I²C-bus)
• Address by 3 hardware address pins
• Automatic word address incrementing
• Available in DIP8 and SO8 packages.

Products/packages

Pricing/ordering/availability

Applications

Related applications
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Transceiver board
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Main CPU board
Set-top box - MMS functionality

Block diagrams/pinning

Technical documents

Application Notes

AN10216_1; I2C manual (27-Mar-03)

AN10441_1; Level shifting techniques in I²C-bus design (20-Jun-07)

Support Documents

IC12_97_ASS_I2C_ADDR_1; Assigned I 2 C-bus addresses General (1997-03-01)

75015669; Continuous innovation. Timeless lifespan. (01-Sep-06)

design_con_2003_tecforum_i2c_bus_overview; DesignCon 2003 TecForum I 2 C Bus Overview (2003-01-27)

75009209; EEPROM & RAM (2002-04-20)

75013239; I 2 C Logic Selection Guide (2005-01-12)

IC12_97_I2C_ALLOCATION; I²C-bus allocation table General (1997-03-01)

75011212; I2C 2002-1A Evaluation Board Kit (2003-03-01)

75009895; I2C Bus Solutions - Industrial/Motor Control Applications: Numeric Control Machine (2002-06-01)

UM10206_1; I2C Demonstration Board 2005-1 Quick Start Guide (13-Jun-06)

75010658; I2C EEPROM and RAM (2002-12-20)

39340011; I2C-bus specification (latest version) (2003-04-22)

39340011_jp; I2C-bus specification (latest version) (2004-06-22)

39340011_21; I2C-bus specification (version 2.1) (2000-01-01)

UM10204_3; I2C-bus specification and user manual (26-Jun-07)

philips_i2c_logic_overview; Interface Products Business Line Specialty Logic Product Line I2C Logic Family Overview (2004-01-01)

75007416; LCD drivers linecard (2001-11-23)

75016020; NXP 8/16-bit I2C/SMBus GPIO expanders PCA9534/35/35C for low-power applications (2007-06-01)

75016022; NXP 8/16-bit I2C/SMBus GPIO expanders PCA9554/54A/55 (2007-06-01)

75010197; PCA9534/9535 I/O Expanders (2002-08-01)

75014395; Your connection to I 2 C,UART,CAN,and USB Connecting with Philips Wired Connectivity (2005-04-01)

Parametrics/similar products

Similar products

PCF8570 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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