MICRF302_10 Datasheet, PDF (1/15 Pages) Micrel Semiconductor – Parallel Encoder

MICRF302
Parallel Encoder
General Description
The MICRF302 is a parallel encoder which works with
QwikRadio^® family radios to significantly shorten design
time for RF products. The part is easy to use, provides
more communication distance, and it is extremely stable
over operating temperature and operating voltage range.
QwikRadio®
Features
• Small form factor: 10-pin MLF^® package
• Wide operating voltage range: 1.8 V to 3.6 V
The MICRF302 Parallel Encoder makes the transmission
of encoding data simple. This device encodes data from
four input pins, which have internal pull-up resistors and
deglitching circuitry. These inputs can be connected to
switches or external circuitry. The MICRF302 outputs
encoded data serially, and can be connected directly to
any QwikRadio^® transmitter without any additional
components.
The MICRF302 gives communication reliability through
built-in CRC (cyclic redundancy check). The MICRF302
needs no external components for clock generation.
Unlike other encoders on the market, there is no shift in
performance with associated changes in operating
temperature nor operating voltage. The internal clock
provides stable data operations over a wide temperature
range of -40°C to +85°C. MICRF302 can operate from
1.8 V to 3.6 V. The MICRF302 is battery friendly, and will
work with alkaline, NiCd, NiMh, lithium ion, or lithium
batteries.
• Low current consumption: 130µA operating, 0.1µA
Standby
• On-chip clock generation requires no external
components
• Unique 20-bit internal address allows up to 1 million
combinations to differentiate from adjacent encoders.
• Selectable data rates: 0.6, 1, 3, 4.8kbps
• 8-bit industry-standard CRC provides robust data
protection
• On-chip pullup resistors
• On-chip deglitch makes it easy to use low-cost switches
Applications
• Light switches
• Appliance controls
• Christmas lights
• Fan and HVAC switches
• Remote half switches
• Garage door openers
• Remote controls
• Toys
• Lawn watering sensors
• Robust, unidirectional, low cost, low power, low data
rate communications links
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Ordering Information
Part Number
MICRF302YML
Marking Code
XA02
Temperature Range
-40ºC to +85ºC
Package
10-pin 2.5mm × 2.5mm MLF^®
Note:
1. MLF is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
QwikRadio is a registered trademark of Micrel, Inc.
MLF and MicroLead Frame are registered trademark of Amkor Technology
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
March 2010
M9999-032610-A