OTP-Based 8-Bit Microcontroller with LCD Driver The JTFM8PE68B is a family of low-cost, high speed, OTP-based 8-bit CMOS microcontrollers. It employs a RISC architecture with only 49 instructions. Al

                          目录NkO嘉泰姆

   1.产品概述      2.产品特点      3.应用范围     4.技术规格书下载（PDF文档）</span>NkO嘉泰姆

   5.产品封装      6.电路原理图</strong>     7.相关产品NkO嘉泰姆

一.产品概述NkO嘉泰姆

The JTFM8PE68B is a family of low-cost, high speed, OTP-based 8-bit CMOS microcontrollers. It employs a RISCNkO嘉泰姆

architecture with only 49 instructions. All instructions are single cycle except for program branches which take twoNkO嘉泰姆

cycles. The easy to use and easy to remember instruction set reduces development time significantly.NkO嘉泰姆

The JTFM8PE68B consists of Power-on Reset (POR), Brown-out Reset (BOR), Power-up Reset Timer (PWRT),NkO嘉泰姆

Oscillator Start-up Timer(OST), Watchdog Timer, Data RAM, OTP/ROM, SRAM, LCD driver, IROUT function,NkO嘉泰姆

tristate I/O port, I/O pull-high/open-drain/pull-down control, Power saving SLEEP mode, real time programmableNkO嘉泰姆

clock/counter, Interrupt, Wake-up from SLEEP mode, RFC, and Code Protection for OTP products. There areNkO嘉泰姆

three oscillator configurations to choose from, including the power-saving LP (Low Power) oscillator and cost savingNkO嘉泰姆

RC oscillator.NkO嘉泰姆

The JTFM8PE68B address 4K of program memory.NkO嘉泰姆

The JTFM8PE68B can directly or indirectly address its register files and data memory. All special function registersNkO嘉泰姆

including the program counter are mapped in the data memory.  NkO嘉泰姆

二.产品特点NkO嘉泰姆

Only 49 single word instructions.NkO嘉泰姆

4K Word on chip OTP.NkO嘉泰姆

All OTP area GOTO/FGOTO instruction.NkO嘉泰姆

All OTP area subroutine CALL/FCALL instruction.NkO嘉泰姆

Totally 272 x 8 bits on chip general purpose registers (SRAM):NkO嘉泰姆

- 144 bytes general purpose register.NkO嘉泰姆

- 128 bytes on-chip data RAM.NkO嘉泰姆

8-level deep hardware stack.NkO嘉泰姆

Direct, indirect addressing modes for data accessing.NkO嘉泰姆

One 8-bit real time clock/counter (Timer0) with 8-bit programmable pre-scaler.NkO嘉泰姆

Four sets of 8-bit auto reload counter/timer can be used as IROUT/PWM generator or interrupt sources:NkO嘉泰姆

- Counter 1: independent counter.NkO嘉泰姆

- Counter 2: High Pulse Width Timer, and Low Pulse Width Timer shared with IR function.NkO嘉泰姆

One IROUT/PWM generator.NkO嘉泰姆

LCD driver with 4(common) x 32(segment) pixels; 1/3, 1/2 bias and 1/4, 1/3, 1/2 duty selection.NkO嘉泰姆

3 channels of 15-bit resolution Resistor to Frequency Converter (RFC) output.NkO嘉泰姆

Internal Power-on Reset (POR).NkO嘉泰姆

Built-in Low Voltage Detector (LVD) for Brown-out Reset (BOR).NkO嘉泰姆

Power-up Reset Timer (PWRT) and Oscillator Start-up Timer(OST).NkO嘉泰姆

On chip Watchdog Timer (WDT) with internal oscillator and soft-ware watch-dog enable/disable control.NkO嘉泰姆

Four I/O ports PORTA, PORTB, PORTC and PORTD with independent direction control.NkO嘉泰姆

Two output only ports PORTE and PORTF.NkO嘉泰姆

Soft-ware I/O pull-high/pull-down or open-drain control.NkO嘉泰姆

Seven internal interrupt source: Timer0, Counter1, Counter2, High-pulse width timer, Low-pulse width timer, RFCNkO嘉泰姆

and Fs divider; Three external interrupt source: INT0 pin, INT1 pin and Port B / Port D input status change.NkO嘉泰姆

Wake-up from SLEEP/IDLE by Port B/Port D input change.NkO嘉泰姆

Operation modes:NkO嘉泰姆

- Normal mode: CPU operate on high frequency main-oscillator.NkO嘉泰姆

- Green mode: CPU operate on low frequency sub-oscillator.NkO嘉泰姆

- Idle mode: CPU idle, LCD display remains working.NkO嘉泰姆

- Sleep mode: whole chip stop working.NkO嘉泰姆

Dual clock Operation: main-oscillator and sub-oscillator.NkO嘉泰姆

Selectable main-oscillator options:NkO嘉泰姆

- ERIC: External Resistor/Internal Capacitor Oscillator.NkO嘉泰姆

- XT: Crystal/Resonator Oscillator.NkO嘉泰姆

- LF: Low Frequency Crystal/Resonator Oscillator.NkO嘉泰姆

- PLL: Phase lock loop.NkO嘉泰姆

Selectable sub-oscillator options:NkO嘉泰姆

- ERIC: External Resistor/Internal Capacitor Oscillator.NkO嘉泰姆

- LF: Low Frequency Crystal Oscillator.NkO嘉泰姆

Wide-operating voltage range:NkO嘉泰姆

- OTP: 2.3V to 5.5V.NkO嘉泰姆

三.应用范围NkO嘉泰姆

JTFM8PE68BA/BB: 64-pin OTP deviceNkO嘉泰姆

JTFM8PE68BC: 44-pin OTP device    NkO嘉泰姆

四.技术规格书（产品PDF)NkO嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持</span>！</p>

 NkO嘉泰姆

五.产品封装图</span>NkO嘉泰姆

  NkO嘉泰姆

六.电路原理图</strong>NkO嘉泰姆

   NkO嘉泰姆

七.相关芯片选择指南NkO嘉泰姆

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