◆◆ PFS252 ◆◆
Not supposed to use in AC RC step-down powered or high EFT requirement applications
Operating temperature : -20°C ~ 70°C
Product lifetime > 3 years (soldering temperature≤260°C)
System Features
1. 2KW MTP program memory for both FPP units (programming cycle at least 1,000 times)
2. 128 Bytes data RAM for both FPP units
3. One hardware 16-bit timer
4. Two hardware 8-bit timer with PWM generator
5. Three hardware 11-bit PWM generators (PWMG0, PWMG1 & PWMG2) 
6. Provide one hardware comparator 
7. Provide one OP Amplifier (OPA)
8. Provide 1T 8x8 hardware multiplier
9. 14 IO pins and optional pull-high resistor 
10. Every IO pin can be configured to enable wake-up function 
11. For every wake-up enabled IO, two optional wake-up speed are supported: normal and fast
12. Bandgap circuit to provide 1.20V reference voltage
13. Clock sources: internal high RC oscillator, internal low RC oscillator and external crystal oscillator
14. Built-in VDD/2 bias voltage generator to provide maximum 5×9 dots LCD display
15. 8 selectable levels of LVR reset from 1.8V to 4.5V
16. Four selectable external interrupt pins
CPU Features
1. Operating modes: Two processing units FPPATM mode or Traditional one processing unit mode
2. 89 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. Register space, memory space and MTP space are independent
Content Date Version Download
PFS252 datasheet 2021-05-28 released V0.01 Download(CN): Download(EN):
Package Information 2021-11-10 released v0.10 Download(CN): Download(EN):
Content Date Version Download
IDE software 2022-05-06 released v0.93 Download(EN):
Program Writer software 2022-05-06 released v0.93 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):
APN017 Enhance the anti-interference ability during power plug-in/out Download(CN): Download(EN):