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?2003 Microchip Technology Inc.
Preliminary
DS70091A-page 1
rfPIC12F675
High Performance RISC CPU:
" Only 35 instructions to learn
-  All single cycle instructions except branches
"  Operating speed:
-  Precision Internal 4 MHz oscillator, factory
calibrated to ?%
-  DC - 20 MHz Resonator/Crystal/Clock modes
-  DC - 20 MHz crystal oscillator/clock input
-  DC - 4 MHz external RC oscillator
-  DC - 4 MHz XT crystal oscillator
-  External Oscillator modes
"  Interrupt capability
"  8-level deep hardware stack
"  Direct, Indirect and Relative Addressing modes
Peripheral Features:
"  Memory
-  1024 x 14 words of FLASH program memory
-  128 x 8 bytes of EEPROM data memory
-  64 x 8 bytes of SRAM data memory
-  100,000 write FLASH endurance
-  1,000,000 write EEPROM endurance
-  FLASH/data EEPROM retention: > 40 years
"  Programmable code protection
"  6 I/O pins with individual direction control, weak
pull-ups, and interrupt-on-pin change
"  High current sink/source for direct LED drive
"  Analog comparator: 16 internal reference levels
"  Analog-to-Digital Converter: 10 bits, 4 channels
"  Timer0: 8-bit timer/counter with 8-bit prescaler
"  Timer1: 16-bit timer/counter with 3-bit prescaler
"  Timer1 can use LP oscillator in INTOSC mode
"  5 祍 wake-up from SLEEP typical with VDD = 3V
"  In-Circuit Serial Programming
TM
 (ICSP
TM
)
Low Power Features:
"  Low power consumption: (typical with VDD = 3V)
-  14 mA transmitting +6 dBm at 434 MHz
-  4 mA transmitting -15 dBm at 434 MHz
-  500 礎, 4.0 MHz INTOSC
-  0.6 礎 SLEEP with watchdog enabled
-  0.1 礎 standby current
"  Wide operating voltage range from 2.0  5.5V
"  Industrial and Extended temperature range
Pin Diagram:
UHF ASK/FSK Transmitter:
"  Integrated crystal oscillator, VCO, loop filter and
power amp for minimum external components
"  ASK data rate: 0  40 Kbps
"  FSK data rate: 0  40 Kbps by crystal pulling
"  Output power: +10 dBm to -12 dBm in 4 steps
"  Adjustable transmitter power consumption
"  Transmit frequency set by crystal multiplied by 32
"  VCO phase locked to quartz crystal reference;
allows narrow band receivers to be used to
maximize range and interference immunity
"  Crystal frequency divide by 4 available (REFCLK)
"  Used in applications conforming to US FCC Part
15.231 and European EN 300 220 regulations
Applications:
"  Automotive Remote Keyless Entry (RKE) systems
"  Automotive alarm systems
"  Community gate and garage door openers
"  Burglar alarm systems
"  Building access
"  Low power telemetry
"  Meter reading
"  Tire pressure sensors
"  Wireless sensors
 
Device
Frequency
Modulation
rfPIC12F675K
290-350 MHz
ASK/FSK
rfPIC12F675F
380-450 MHz
ASK/FSK
rfPIC12F675H
850-930 MHz
ASK/FSK
SSOP
VSS
GP2/T0CKI/INT/COUT
DATAFSK
GP1/CIN-/ICSPCLK
VDD
GP5/T1CKI/OSC1/CLKIN
GP3/MCLR
/VPP
RFEN
REFCLK
PS
VDDRF
GP4/T1G
/OSC2/CLKOUT
DATAASK
 2
 3
 4
 5
 6
 7
 8
 9
"1
19
18
16
15
14
13
12
17
20
GP0/CIN+/ICSPDAT
LF
VSSRF
VSSRF
ANT
10
11
FSKOUT
RFXTAL
FLASH-Based Microcontroller with ASK/FSK Transmitter
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