Description

• C51 CPU (6 clocks)
• on-chip main RAM: 128 bytes, 256 bytes.
• special function registers (SFRs).
• on-chip AUX memory: 256 bytes, 512 bytes, 1024 bytes, 2048 bytes.
• Aux memory expansion: 64K bytes (external)
• ports: port 0, port 1, port 2, port 3, and port 4.
• Interrupts: up to 11 source, 2-level priority.
• timers: timer 0, timer 1.
• Uart

• on-chip program memory: 16K,32K, 64K, 96K, 128K.
• program memory type: mask ROM, OTP, EEPROM, Flash.
• organization of the program memory (banked program ROM)

• on-chip AUX memory: 256 bytes, 512 bytes, 1024 bytes, 2048 bytes.
• Aux memory expansion: 64K bytes (external)
• organization of the auxiliary memory.

• timer 2.
• watch-dog timer.
• ADC (8-bits, 10 bits, 12 bits).
• DAC (8-bits, 10 bits, 12 bits).
• operational amplifiers.
• comparators.
• brown-out detection.
• 16-com, 61-segment, dot-matrix STN driver (sharing display memory with the CPU).
• PWM
• PLL

• on-chip crystal oscillator.
• on-chip ceramic oscillator.
• external clock source.
• frequency: 12 MHz, 16 MHz, 24 MHz, 40 MHz..

• operating voltage: 2.7 ~ 5.5 volts.
• operating temperature range: -20 ~ +75 °C.
• storage temperature range: -40 ~ +75 °C.
• ESD: HBM 3KV.
• Latch-up: 200 mA.

• normal mode.
• power-down mode.
• standby mode.

• Emulation: external access or dedicated emulation mode.
• PC-based emulator.
• C-compiler
• assembler
• linker