MC6805R2

The MC6805R2(HMOS) microcontroller unit(MCU) is a member of the MC6805 family of microcontrollers.This low cost and high-speed MCU has parallel IO capability with pins programmable as input or output.This publication contains condensed information on the MCU.

Features of the MC6805R2 are:(1)internal 8-bit timer with 7-bit prescaler; (2)on-chip oscillator; (3)memory mapped IO; (4)versatible interrupt handling; (5)true bit manipulation; (6)bit test and branch instruction; (7)vectored interrups; (8)self-check mode; (9)2048 bytes of ROM; (10)64 bytes of RAM; (11)AD converter.

The absolute maximum ratings of the MC6805R2 can be summarized as:(1): supply voltage(Vcc) is -0.3 V to 7.0 V; (2): input voltage self-check mode(timer pin only)(Vin) is 0.3 V to 15.0 V; (3): operating temperature range(Ta) is 0 to 70; (4): storage temerature range(Tstg) is -55 to +150; (5): junction temperature(Tj) is 50(plastic).