W79E658A

SRAM 256+1K
LDROM 4K
I/O 60
Timer 3*16-bit
UART 1
I2C 2
PWM 6*8-bit
ADC 8*10-bit
ISP/ICP/IAP Yes
Status Mass Production
INT 2
Special Function JTAG interface , Extra I/O port

The Nuvoton standard 8051 series is pin-compatible with traditional 12T 8051 and operating at 2.4V ~ 5.5V and - 40 ℃ ~ 85 ℃.