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tenx MCU
> 4-bit MCU
> TM87 series
>MCU
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| TM87P04 (OTP) |
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4-Bit Microcontroller (EPROM OTP)
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TM87P04 Data Sheet (Ver 1.0) (.pdf)
TM87P04 User's Manual(English) Ver 1.0 (.pdf)
tenx 4-bit Summary (.pdf)
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Description:
The TM87P04 is is an EPROM embedded high-performance 4-bit micro controller with LCD driver.
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Feature:
1. Powerful instruction set (100 instructions).
- Binary addition, subtraction, BCD adjusts, logical operation in direct and index addressing mode.
- Single-bit manipulation (set, reset, decision for branch).
- Various conditional branches.
- 16 working registers and manipulation.
- LCD driver data transfer.
2. Memory capacity.
- Program ROM capacity 8186 x 8 bits
- Data RAM capacity 128 x 4 bits.
3. Input/output ports.
- Port IOA 4 pins (with internal pull-low).
- Port IOB 2 pins (with internal pull-low).
- Port IOC 4 pins (with internal pull-low, chattering prevention clock).
- Port IOD 4 pins (with internal pull-low).
4. 8 level subroutine nesting.
5. Interrupt function.
- External factor 2 (INT pin, Port IOC).
- Internal factor 3 (Pre-Divider, Timer1, Timer2).
6. Built in Alarm, Frequency or Melody generator.
7. BZB, BZ (Mux with IOB3, IOB4).
8. Two 6-bit programmable timers with programmable clock source.
9. LCD driver output.
- 32 LCD driver outputs (up to 128 LCD segment drivable).
- 1/4 Duty for LCD.
- 1/2 Bias or 1/3Bias for LCD selected by option.
- 16 LCD address.
10. Built-in Voltage doubler, halver charge pump circuit.
11. Dual clock operation, and X'tal type slow oscillation, and fast oscillation can set 3.58MHz ceramic resonator or external R by switch option.
12. Watch dog timer.
13. HALT function.
14. STOP function.
15. ROM code protect fuse.
16. Fixed LCD PLA configuration
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Applications:
Timer/Calendar/Calculator
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