P80CE559 Datasheet | NXP Semiconductors

FEATURES - 80C51 central processing unit - 48 K × 8 ROM, expandable externally to 64 Kbytes - ROM Code protection - 1536 × 8 RAM, expandable externally to 64 Kbytes - Two standard 16-bit timer/counters - An additional 16-bit timer/counter coupled to four capture registers and three pare registers - A 10-bit ADC with eight multiplexed analog inputs and programmable autoscan 2. GENERAL DESCRIPTION The P80CE559/P83CE559 (hereafter generically referred to as P8x CE559) single-chip 8-bit microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The P8x CE559 has the same instruction set as the 80C51. Three versions of the derivative exist: - Two 8-bit resolution, pulse width modulation outputs - Five 8-bit I/O ports plus one 8-bit input port shared with analog inputs - I2C-bus serial I/O port with byte oriented master and slave functions - Full-duplex UART patible with the standard 80C51 - On-chip watchdog timer - 15 interrupt sources with 2 priority levels (2 to 6 external sources possible) - P83CE559 - 48 Kbytes mask programmable ROM - P80CE559 - ROMless version of the P83CE559 - P89CE559 - not planned any longer - Extended temperature range (- 40 to +85 °C) - 4.5 to 5.5 V supply voltage range - Frequency range for 80C51- family standard oscillator: 3.5 MHz to 16 MHz - PLL oscillator with 32 k Hz reference and software- selectable system clock frequency The P8x CE559 contains a non-volatile 48 Kbytes mask programmable ROM (P83CE559), a volatile 1536 × 8 read/write data memory, five 8-bit I/O ports, one 8-bit input port, two 16-bit timer/event counters (identical to the timers of the 80C51), an additional 16-bit timer coupled to capture and pare latches, a 15-source, two-priority-level, nested interrupt structure, an 8-input ADC, a dual DAC pulse width modulated interface, two serial interfaces (UART and I2C-bus), a “watchdog” timer, an on-chip oscillator and timing circuits. For systems that require extra...