PCA9564

General description

The PCA9564 is an integrated circuit designed in CMOS technology that serves as an interface between most standard parallel-bus microcontrollers/microprocessors and the serial I²C-bus and allows the parallel bus system to communicate bi-directionally with the I²C-bus. The PCA9564 can operate as a master or a slave and can be a transmitter or receiver. Communication with the I²C-bus is carried out on a byte-wise basis using interrupt or polled handshake. The PCA9564 controls all the I²C-bus specific sequences, protocol, arbitration and timing with no external timing element required.

The PCA9564 is similar to the PCF8584 but operates at lower voltages and higher I²C frequencies. Other enhancements requested by design engineers have also been incorporated.

While the PCF8584 supported most parallel-bus microcontrollers/ microprocessors including the Intel 8049/8051, Motorola 6800/68000 and the Zilog Z80, the PCA9564 has been designed to be very similar to the Philips standard 80C51 microcontroller I²C hardware so the devices are not code compatible. Additionally, the PCA9564 does not support the bus monitor "Snoop" mode nor the long distance mode and is not footprint compatible with the PCF8584.

Features

• Parallel-bus to I²C-bus protocol converter and interface
• Both master and slave functions
• Multi-master capability
• Internal oscillator reduces external components
• Operating supply voltage 2.3 V to 3.6 V
• 5 V tolerant I/Os
• Standard and fast mode I²C capable and compatible with SMBus
• ESD protection exceeds 2000 V HEM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
• Latch-up testing is done to JEDEC Standard JESD78 which exceed 100 mA.
• Packages offered: DIP20, SO20, TSSOP20, HVQFN20

Products/packages

Quality/reliability/chemical content

Quality and reliability disclaimer

Pricing/ordering/availability

Applications

• Add I²C-bus port to controllers/processors that do not have one
• Add additional I²C-bus ports to controllers/processors that need multiple I²C-bus ports
• Higher frequency, lower voltage migration path for the PCF8584
• Converts 8 bits of parallel data to serial data stream to prevent having to run a large number of traces across the entire PC board

Related applications
Intelligent washing machine

Block diagrams/pinning

Design support

Application Notes

AN10216; I2C manual (2003-03-27)

AN10315; LED dimmer demoboard (2005-01-11)

AN10441; Level shifting techniques in I2C-bus design (2007-06-20)

AN10148; PCA9564 - I2C-bus controller (2004-11-22)

AN10149; PCA9564 Evaluation Board (2004-08-19)

Support Documents

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

UM10206; I2C Demonstration Board 2005-1 Quick Start Guide (2006-06-13)

UM10204; I2C-bus specification and user manual (2007-06-26)

web; IBIS and HSPICE Model ()

75015687; NXP Fast-mode Plus parallel bus to I²C-bus controller PCA9665 (2006-10-01)

75015692; NXP LED dimmer demonstration board OM6279 (2006-11-01)

75015963; NXP evaluation kit for PCA9564 (2007-05-01)

Parametrics/similar products

Similar products
PCA9564 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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Disclaimers

• General product disclaimer
• Quality and reliability disclaimer