RFPIC12F675 Datasheet, PDF (1/136 Pages) Microchip Technology – FLASH-Based Microcontroller with ASK/FSK Transmitter

rfPIC12F675
FLASH-Based Microcontroller with ASK/FSK Transmitter
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 ±1%
- 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 s 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 A, 4.0 MHz INTOSC
- 0.6 A SLEEP with watchdog enabled
- 0.1 A standby current
• Wide operating voltage range from 2.0 – 5.5V
• Industrial and Extended temperature range
Pin Diagram:
SSOP
VDD
GP5/T1CKI/OSC1/CLKIN
GP4/T1G/OSC2/CLKOUT
GP3/MCLR/VPP
RFXTAL
RFEN
REFCLK
PS
VDDRF
VSSRF
•1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10 11
VSS
GP0/CIN+/ICSPDAT
GP1/CIN-/ICSPCLK
GP2/T0CKI/INT/COUT
FSKOUT
DATAFSK
DATAASK
LF
VSSRF
ANT
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
rfPIC12F675K
rfPIC12F675F
rfPIC12F675H
Frequency
290-350 MHz
380-450 MHz
850-930 MHz
Modulation
ASK/FSK
ASK/FSK
ASK/FSK
 2003-2013 Microchip Technology Inc.
Preliminary
DS70091B-page 1