P89C54UBAA

The P89C54UBAA contain a non-volatile FLASH program memory that is parallel programmable.For devices that are serial programmable with a boot.

Features of the P89C54UBAA are:(1)8051 central processing unit;(2)on-chip FLASH program memory;(3)speed up to 33MHz;(4)full static operation;(5)RAM expandable externally to 64k bytes;(6)4 level priority interrupt;(7)6 interrupt sources;(8)four 8-bit I/O ports;(9)full-duplex enhanced UART;(10)power control modes;(11)programmable clock out;(12)second DPTR register;(13)asynchronous port reset;(14)low EMI(inhibit ALE);(15)3 16-bit timers;(16)wake-up from power down by an external interrupt.

The electrical characteristics of the P89C54UBAA can be summarized as:(1):the parameter is operating temperature under bias,the rating is 0 to +70 or -40 to +85,the unit is ;(2):the parameter is storage temperature range,the rating is -65 to +150,the unit is ;(3):the parameter is voltage on EA/VPP pin to VSS,the rating is 0 to +13.0,the unit is V;(4):the parameter is voltage on any other pin to VSS,the rating is -0.5 to +6.5,the unit is V;(5):the parameter is maximum IOL per I/O pin,the rating is 15,the unit is mA;(6):the parameter is power dissipation (based on package heat transfer limitations,not device power consumption),the rating is 1.5,the unit is W.