DescriptionThe TMP87CN71F is a kind of high speed and high performance 8-bit single chip microcomputer. The MCU contains 6-bit A/D conversion inputs and a VFT (Vacuum Fluorescent Tube) driver on a chip.
There are some features TMP87CN71F as follows: (1)instruction execution time: 0.5us (at 8MHz), 122us (at 32.768 kHz); (2)412 basic instructions: multiplication and division (8 bits*8bits, 16bits/8bits); 16 bit data operations; 1-byte jump/subroutine-call (short relative jump/vector call); (3)10 input/output ports (73 pins): output: 1 port (8 pins); input/output: 9 ports (65 pins); (4)two 16-bit timer/counters: timer, event counter modes; (5)two 8-bit timer/counters: timer, event counter, capture (pulse width/duty measurement), PWM output, programmable divider output modes; (6)time base timer (interrupt frequency: 1 Hz to 16 kHz); (7)divider output function (frequency: 1 kHz to 8 kHz); (8)watchdog timer: interrupt source/reset output (programmable); (9)8-bit high speed serial output (rate: max 1 bit/us); (10)6-bit A/D conversion input (6 channels); (11)vacuum fluorescent tube driver (automatic display): high breakdown voltage ports; (12)key scanning function: key-matrix constructed by segment outputs (1 to 16) and key inputs (1 to 8); (13)dual clock operation: single/dual-clock mode (option).
Then is about the absolute maximum ratings TMP87CN71F: (1)supply voltage, VDD: -0.3 to 6.5 V; (2)input voltage, VIN: -0.3 to VDD+0.3 V; (3)output voltage, VOUT: -0.3 to VDD+0.3 V at pins P2, P3, P4, P5, XOUT, RESET and VDD-40 to VDD+0.3 V at source open drain ports; (4)output current (per 1 pin), IOUT: 3.2 mA at pins P0, P1, P2, P3, P4, P5; -12 mA at pins P8, P9 (segment outputs); -25 mA at pins P6, P7 (digit outputs); (5)power dissipation, PD: 350 mW; (6)soldering temperature, Tsld: 260; (7)storage temperature, Tstg: -55 to 125; (8)operating temeprature, Topr: -30 to 70.
TMP87CN71F Data Sheet
