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PCA9665 Datasheet

Fm parallel bus to I2C-bus controller

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PCA9665 pdf
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PCA9665
Fm+ parallel bus to I2C-bus controller
Rev. 02 — 7 December 2006
Product data sheet
1. General description
The PCA9665 serves as an interface between most standard parallel-bus
microcontrollers/microprocessors and the serial I2C-bus and allows the parallel bus
system to communicate bidirectionally with the I2C-bus. The PCA9665 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 or Buffered mode using interrupt or polled handshake. The
PCA9665 controls all the I2C-bus specific sequences, protocol, arbitration and timing with
no external timing element required.
The PCA9665 has the same footprint as the PCA9564 with additional features:
1 MHz transmission speeds
Up to 25 mA drive capability on SCL/SDA
68-byte buffer
I2C-bus General Call
Software reset on the parallel bus
2. Features
I Parallel-bus to I2C-bus protocol converter and interface
I Both master and slave functions
I Multi-master capability
I Internal oscillator trimmed to 15 % accuracy reduces external components
I 1 Mbit/s and up to 25 mA SCL/SDA IOL (Fast-mode Plus (Fm+)) capability
I I2C-bus General Call capability
I Software reset on parallel bus
I 68-byte data buffer
I Operating supply voltage: 2.3 V to 3.6 V
I 5 V tolerant I/Os
I Standard-mode and Fast-mode I2C-bus capable and compatible with SMBus
I ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per
JESD22-A115, and 1000 V CDM per JESD22-C101
I Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
I Packages offered: DIP20, SO20, TSSOP20, HVQFN20


NXP Semiconductors Electronic Components Datasheet

PCA9665 Datasheet

Fm parallel bus to I2C-bus controller

No Preview Available !

PCA9665 pdf
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PCA9665
Fm+ parallel bus to I2C-bus controller
3. Applications
I Add I2C-bus port to controllers/processors that do not have one
I Add additional I2C-bus ports to controllers/processors that need multiple I2C-bus ports
I Converts 8 bits of parallel data to serial data stream to prevent having to run a large
number of traces across the entire printed-circuit board
4. Ordering information
Table 1. Ordering information
Tamb = 40 °C to +85 °C
Type number Topside
mark
Package
Name
PCA9665BS 9665
HVQFN20
PCA9665D
PCA9665N
PCA9665PW
PCA9665D
PCA9665N
PCA9665
SO20
DIP20
TSSOP20
Description
plastic thermal enhanced very thin quad flat package;
no leads; 20 terminals; body 5 × 5 × 0.85 mm
plastic small outline package; 20 leads; body width 7.5 mm
plastic dual in-line package; 20 leads (300 mil)
plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
Version
SOT662-1
SOT163-1
SOT146-1
SOT360-1
PCA9665_2
Product data sheet
Rev. 02 — 7 December 2006
© NXP B.V. 2006. All rights reserved.
2 of 91


Part Number PCA9665
Description Fm parallel bus to I2C-bus controller
Maker NXP Semiconductors
Total Page 30 Pages
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