Philips Semiconductors
Product data sheet
Parallel bus to I2C-bus controller
PCA9564
DESCRIPTION
The PCA9564 is an integrated circuit designed in CMOS technology
that serves as an interface between most standard parallel-bus
2
microcontrollers/microprocessors and the serial I C-bus and allows
the parallel bus system to communicate bi-directionally with the
2
I C-bus. The PCA9564 can operate as a master or a slave and can
2
be a transmitter or receiver. Communication with the I C-bus is
carried out on a byte-wise basis using interrupt or polled handshake.
2
The PCA9564 controls all the I C-bus specific sequences, protocol,
arbitration and timing with no external timing element required.
FEATURES
• Parallel-bus to I C-bus protocol converter and interface
The PCA9564 is similar to the PCF8584 but operates at lower
voltages and higher I@C frequencies. Other enhancements
requested by design engineers have also been incorporated.
2
• Both master and slave functions
• Multi-master capability
Characteristic
PCA9564 PCF8584
Comments
Voltage range
2.3–3.6 V 4.5–5.5 V PCA9564 is 5 V
tolerant
• Internal oscillator reduces external components
• Operating supply voltage 2.3 V to 3.6 V
• 5 V tolerant I/Os
2
Maximum
360 kHz
400 kHz
Internal
90 kHz
Faster I C interface
master mode
2
I C frequency
2
• Standard and fast mode I C capable and compatible with SMBus
2
Maximum slave
100 kHz Faster I C interface
2
mode I C
• ESD protection exceeds 2000 V HEM per JESD22-A114,
200 V MM per JESD22-A115, and 1000 V CDM per
JESD22-C101
frequency
Clock source
External Less expensive and
more flexible with
• Latch-up testing is done to JEDEC Standard JESD78 which
internal oscillator
exceed 100 mA.
Parallel
interface
Fast
50 MHz
Slow
Compatible with
faster processors
• Packages offered: DIP20, SO20, TSSOP20, HVQFN20
APPLICATIONS
• Add I C-bus port to controllers/processors that do not have one
While the PCF8584 supported most parallel-bus microcontrollers/
microprocessors including the Intel 8049/8051, Motorola
2
6800/68000 and the Zilog Z80, the PCA9564 has been designed to
2
• Add additional I C-bus ports to controllers/processors that need
2
be very similar to the Philips standard 80C51 microcontroller I C
2
multiple I C-bus ports
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.
• 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
ORDERING INFORMATION
PACKAGES
20-Pin Plastic DIP
20-Pin Plastic SO
20-Pin Plastic TSSOP
20-Pin Plastic HVQFN
whole wafer
TEMPERATURE RANGE
–40 °C to +85 °C
–40 °C to +85 °C
–40 °C to +85 °C
–40 °C to +85 °C
–40 °C to +85 °C
ORDER CODE
PCA9564N
TOPSIDE MARK
PCA9564N
PCA9564D
PCA9564
9564
DRAWING NUMBER
SOT146-1
SOT163-1
SOT360-1
SOT662-1
n/a
PCA9564D
PCA9564PW
PCA9564BS
PCA9564U
n/a
Standard packing quantities and other packaging data are available at www.standardics.philips.com/packaging.
2
2006 Sep 01
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