Key facts
- Brand
- MICROCHIP
- Model
- PIC639
- Industry
- Industrial
- Documents
- 4
- Languages
- EN · ZH
- Last added
- 2012-04-06
Start here
Microchip PIC12F635, PIC16F636, PIC16F639 Datasheet
The PIC12F635, PIC16F636, and PIC16F639 are 8‑pin flash‑based, 8‑bit CMOS microcontrollers featuring nanoWatt technology. They provide a high‑performance RISC CPU with only 35 instructions, single‑cycle execution, and an operating speed up to 20 MHz with a 200 ns instruction cycle. The devices include a wide operating voltage range of 2.0 V‑5.5 V, low‑power sleep mode, and extensive peripheral options such as analog comparators, timers, SPI, and a cryptographic module compatible with KeeLoq.
Key specifications include up to 2 KB of program flash, 128 B of SRAM, 256 B of EEPROM, 1 nA standby current at 2.0 V, and typical operating currents of 8.5 µA at 32 kHz. The flash memory offers 100 k write cycles, while the EEPROM endures 1 M write cycles, both with data retention exceeding 40 years. The datasheet also provides detailed pin diagrams, packaging options, and worldwide sales and service contacts.
MICROCHIP PIC639 specifications
| Operating Voltage Range | 2.0 V – 5.5 V |
|---|---|
| Standby Current | 1 nA @ 2.0 V (typical) |
| Operating Current | 8.5 µA @ 32 kHz, 2.0 V (typical) |
| Flash Write Endurance | 100 000 write cycles |
| EEPROM Write Endurance | 1 000 000 write cycles |
| Data Retention | > 40 years |
All MICROCHIP PIC639 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the operating voltage range of the PIC12F635/PIC16F636/639 devices?
The devices operate from 2.0 V to 5.5 V.
How much standby current do these microcontrollers draw?
Typical standby current is 1 nA at 2.0 V.
What is the flash memory write endurance?
The flash memory can be written up to 100,000 times.
What is the EEPROM write endurance?
The EEPROM can be written up to 1,000,000 times.