Part No. VDD System
Clock
Program
Memory
Data Memory I/O Timer End-
points
Stack Package
SRAM EEPROM 8-bit 16-bit

2.2V~
5.5V
6MHz or 12MHz 6Kx16 224x8 -- 40 1 1 4 8 32QFN, 48SSOP

3.3V~
5.5V
6MHz or 12MHz 4Kx15 160x8 -- 32 1 1 3 8 28SOP, 32QFN,
48SSOP

128x8 28SOP
Note: 1. Part numbers with a single "A" suffix are mask version devices, and with a single "E" suffix are OTP devices. 
          2. Part numbers with an "AE" suffix are mask version devices with EEPROM, and with an "EE" suffix are OTP devices with EEPROM.


Part No. VDD System
Clock
Program
Memory
Data Memory I/O Timer End-
points
Stack Package
SRAM EEPROM 8-bit 16-bit

3.3V~
5.5V
6MHz or
12MHz
2Kx14 96x8 -- 12 -- 1 2 4 18DIP/SOP,
20DIP/SOP/SSOP

128x8 20SSOP(209mil)

3.3V~
5.5V
6MHz or
12MHz
4Kx15 224x8 -- 16 -- 1 3 4 20SOP/SSOP(209mil),
24SSOP(209mil), 32QFN
128x8 20/24SSOP(209mil)

3.3V~
5.5V
6MHz or
12MHz
8Kx16 224x8 -- 20 1 1 4 8 24/28SSOP(209mil), 32QFN
128x8 28SOP
Note: 1. Part numbers with a single "A" suffix are mask version devices, and with a single "E" suffix are OTP devices. 
          2. Part numbers with an "AE" suffix are mask version devices with EEPROM, and with an "EE" suffix are OTP devices
              with EEPROM.
 
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