We can Read Chip TS80C51U2 Flash, please view the Chip TS80C51U2 features for your reference:

TS80C51U2 is high performance CMOS ROM, OTP and EPROM versions of the 80C51 CMOS single chip 8-bit microcontroller. The TS80C51U2 retains all features of the 80C51 with extended ROM/EPROM capacity (16 Kbytes), 256 bytes of internal RAM, a 7-source , 4-level interrupt system, an on-chip oscilator and three timer/counters when Read Chip.

In addition, the TS80C51U2 has a second UART, enhanced functions on both UART, enhanced timer 2, a hardware watchdog timer, a dual data pointer, a baud rate generator and a X2 speed improvement mechanism. The fully static design of the TS80C51U2 allows to reduce system power consumption by bringing the clock frequency down to any value, even DC, without loss of data if Read Chip.

The TS80C51U2 has 2 software-selectable modes of reduced activity for further reduction in power consumption. In the idle mode the CPU is frozen while the timers, the serial port and the interrupt system are still operating. In the power-down mode the RAM is saved and all other functions are inoperative before Read Chip.

80C52 Compatible

• 8051 pin and instruction compatible
• Four 8-bit I/O ports
• Three 16-bit timer/counters after Read Chip
• 256 bytes scratchpad RAM

High-Speed Architecture

• 40 MHz @ 5V, 30MHz @ 3V
• X2 Speed Improvement capability (6 clocks/machine cycle)

30 MHz @ 5V, 20 MHz @ 3V (Equivalent to 60 MHz @ 5V, 40 MHz @ 3V) before Read Chip

Second UART

Baud Rate Generator

Dual Data Pointer

On-chip ROM/EPROM (16K-bytes)

Programmable Clock Out and Up/Down Timer/ Counter 2

Hardware Watchdog Timer (One-time enabled with Reset-Out) when Read Chip 

Asynchronous port reset

Interrupt Structure with

• 7 Interrupt sources
• 4 level priority interrupt system if Read Chip 

Full duplex Enhanced UARTs

• Framing error detection
• Automatic address recognition

Low EMI (inhibit ALE)

Power Control modes after Read Chip 

• Idle mode
• Power-down mode
• Power-off Flag

Once mode (On-chip Emulation)

Power supply: 4.5-5.5V, 2.7-5.5V

Temperature ranges: Commercial (0 to 70oC) and

Industrial (-40 to 85oC)

Packages: PDIL40, PLCC44, VQFP44 1.4, CQPJ44 (window), CDIL40 (window) when Read Chip