◆◆ PFS123 ◆◆
General purpose series
Not supposed to use in AC RC step-down powered or high EFT requirement applications
Operating temperature : -20°C ~ 85°C
System Features
1. 3KW MTP program memory (programming cycle at least 1,000 times)
2. 256 Bytes data RAM
3. One hardware 16-bit timer
4. Two hardware 8-bit timers with PWM generator
5. One set triple 11bit SuLED (Super LED) PWM generators and timers
6. One hardware comparator
7. Band-gap circuit to provide 1.20V reference voltage
8. Up to 14-channel 12-bit resolution R-type*ADC with one channel comes from band gap 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
9. ADC reference high voltage: external input, internal VDD
10. Max. 18 IO pins with optional pull-high resistor, four of them with additional pull-low resistor
11. Every IO pin can be configured to enable wake-up function
12. Built-in VDD/2 LCD bias voltage generator to provide maximum 5x12 dots LCD displayy
13. Clock sources: IHRC, ILRC & EOSC (XTAL)
14. For every wake-up enabled IO, two optional wake-up speed are supported: normal and fast
15. 16 selectable levels of LVR reset from 1.8V to 4.5V
16. Two external interrupt pins
CPU Features
1. 8-bit high performance RISC CPU
2. 90 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
PFS123 datasheet 2024-03-21 released v0.04 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):
APN019 E-PAD PCB layout guideline Download(CN): Download(EN):