Description
OB39R32T1 has a fast single-cycle 8051 core, 32KB+8KB flash memory, 256B+768B SRAM, and can execute all ASM51-compliant instructions, with the same instruction settings as the MCS-51. The on-chip integrates DC Regulator, ADC, and touch buttons.

Features
Command settings are MCS-51 compatible
32K+8K bytes of on-chip flash program memory
256 bytes of standard 8052 RAM
768 bytes of SRAM
Dual 16-bit data pointers (DPTR0&DPTR1)
4 x 16-bit timers/counters (timers 0, 1, 2, 3)
Integrated 8-way touch buttons
Up to 29 GPIOs
LED driver: 7 high-current COM ports, 16 SEG ports
External interrupt source: INTx 4
External Interrupt Source: KBIx8 (with debounce)
I2C x 2
UART x 2
Programmable Watchdog Timer (WDT)
9 12-Bit Analog-to-Digital Conversion (ADCs)
On-chip flash memory supports ICP and EEPROM functions
Low Voltage Interrupt LVI (1.65/2.6/3.2/4.0V) / Low Voltage Reset LVR (1.55/2.7V)
The power management unit is in idle and power-down mode
Support online simulation (OCD) function
On-chip oscillator:
HIRC: 22.1184MHz, (±2%, -40°C~85°C)
Package type: 20/24/28-SOP, 32-LQFP