◆◆ PFS122 ◆◆
General purpose series
Not supposed to use in AC RC step-down powered or high EFT requirement applications
Operating temperature : -40°C ~ 85°C
System Features
1. 2KW MTP program memory (programming cycle at least 1,000 times)
2. 128 Bytes data SRAM
3. One hardware 16-bit timer
4. Two hardware 8-bit timers with PWM generator
5. One hardware comparator
6. Band-gap circuit to provide 1.20V reference voltage
7. Up to 12-channel 12-bit resolution R-Type*ADC with one channel comes from internal bandgap voltage
  *Note: R-Type ADC means Resistive type ADC. Its linearity(INL & DNL), heat stability and power noise rejection would not be as good as the C-Type ADC which build in the PMS13x series
8. Max. 14 IO pins with optional pull-high / pull-low resistor
9. Every IO pin can be configured to enable wake-up function
10. Clock sources: IHRC, ILRC & EOSC (XTAL)
11. For every wake-up enabled IO, two optional wake-up speed are supported: normal and fast
12. 8 selectable levels of LVR reset from 1.8V to 4.5V
13. Two selectable external interrupt pins by code option
CPU Features
1. 8-bit high performance RISC CPU
2. 86 powerful instructions
3. Most instructions are 1T execution cycle
4. Programmable stack pointer and adjustable stack level
5. Direct and indirect addressing modes for data access. Data memories are available for use as an index pointer of Indirect addressing mode
6. IO space and memory space are independent
Content Date Version Download
PFS122 datasheet 2023-03-31 released v0.02 Download(CN): Download(EN):
Package Information 2023-09-13 released v0.14 Download(CN): Download(EN):
Content Date Version Download
IDE software 2024-06-12 released v1.01A3 Download(EN):
Program Writer software 2024-06-12 released v1.01A3 Download(EN):
Content Description Download
APN001 Output impedance of ADC analog signal source Download(CN): Download(EN):
APN002 Over voltage protection Download(CN): Download(EN):
APN003 Over voltage protection Download(CN): Download(EN):
APN004 Semi-Automatic writing handler Download(CN): Download(EN):
APN005 Effects of over voltage input to ADC Download(CN): Download(EN):
APN007 Setting up LVR level Download(CN): Download(EN):
APN011 Semi-Automatic writing Handler improve writing stability Download(CN): Download(EN):
APN013 Notification of crystal oscillator Download(CN): Download(EN):
APN017 Improve IC anti-interference ability under power plug test Download(CN): Download(EN):