P89C51RC2BBD/01

The P89C51RC2BBD/01 is designed as one kind of 8-bit flash microcontroller device that supports 6-clock/12-clock mode selection by programming a Flash bit using parallel programming or In-System Programming. And P89C51RC2BBD/01 also has four 8-bit I/O ports, three 16-bit timer/event counters, a multi-source, four-priority-level, nested interrupt structure, an enhanced UART and on-chip oscillator and timing circuits.

Features of the P89C51RC2BBD/01 are:(1)Programmable Counter Array (PCA): PWM and Capture / compare; (2)Programmable clock-out pin; (3)Second DPTR register; (4)Asynchronous port reset; (5)Low EMI (inhibit ALE); (6)Fully static operation; (7)RAM expandable externally to 64 kbytes; (8)Four interrupt priority levels; (9)Seven interrupt sources; (10)Four 8-bit I/O ports; (11)80C51 Central Processing Unit; (12)On-chip Flash Program Memory with In-System Programming; (13)(ISP) and In-Application Programming (IAP) capability; (14)Boot ROM contains low level Flash programming routines for; (15)downloading via the UART; (16)Can be programmed by the end-user application (IAP); (17)Parallel programming with 87C51 compatible hardware interface to programmer; (18)Supports 6-clock/12-clock mode via parallel programmer (default clock mode after ChipErase is 12-clock); (19)6-clock/12-clock mode Flash bit erasable and programmable via ISP; (20)6-clock/12-clock mode programmable "on-the-fly" by SFR bit; (21)Peripherals (PCA, timers, UART) may use either 6-clock or 12-clock mode while the CPU is in 6-clock mode.

The absolute maximum ratings of the P89C51RC2BBD/01 can be summarized as:(1)Operating temperature under bias: 0 to +70 or 40 to +85 °C;(2)Storage temperature range: -65 to +150 °C;(3)Voltage on EA/VPP pin to VSS: 0 to +13.0 V;(4)Voltage on any other pin to VSS: -0.5 to +6.5 V;(5)Maximum IOL per I/O pin: 15 mA;(6)Power dissipation (based on package heat transfer limitations, not device power consumption): 1.5 W. If you want to know more information about the P89C51RC2BBD/01, please download the datasheet in www.seekic.com or www.chinaicmart.com .