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Feeling Technology
Feeling Technology


FM8PE51

EPROM/ROM-Based 8-Bit Microcontroller


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FM8PE51 pdf
FEELING
TECHNOLOGY
FM8PE51
EPROM/ROM-Based 8-Bit Microcontroller
Devices Included in this Data Sheet:
FM8PE51E : EPROM device
FM8PE51 : Mask ROM device
FEATURES
Only 47 single word instructions
All instructions are single cycle except for program branches which are two-cycle
13-bit wide instructions
8-bit wide data path
5-level deep hardware stack
4K x 13 bits on chip EPROM/ROM
140 x 8 bits on chip general purpose registers (SRAM)
Operating speed: DC-20 MHz clock input
DC-100 ns instruction cycle
Direct, indirect addressing modes for data accessing
One 8-bit real time clock/counter (Timer0) with 8-bit programmable prescaler
Three 8-bit real time clock/counter (Timer1, Timer2, and Timer3) with period setting
Internal Power-on Reset (POR)
Built-in Low Voltage Detector (LVD) for Brown-out Reset (BOR)
Power-up Reset Timer (PWRT) and Oscillator Start-up Timer(OST)
On chip Watchdog Timer (WDT) with internal oscillator for reliable operation and soft-ware watch-dog
enable/disable control
Five I/O ports (38 I/O pins) with independent direction control
32 programmable pull-high input pins
12 wake-up pins
2 open-drain pins
2 R-option pins
Clock output with high driving ability
19 channels of 15-bit resolution Resistor to Frequency Converter (RFC) output
2 channels of maximum 10-bit resolution Pulse Width Modulation (PWM) output
Built-in 8-bit data comparator
Seven internal interrupt source: Timer0 overflow, Timer1 match, Timer2 match, Timer3 match, SPI module
(Receive & Transmit), RFC module; One external interrupt source: INT pin change
Wake-up from SLEEP by port input change
Power saving SLEEP mode
Programmable Code Protection
Built-in RC oscillator with external resistor
Selectable oscillator options:
- ERC: External Resistor/Capacitor Oscillator
- ERIC: External Resistor/Internal Capacitor Oscillator
- HF: High Frequency Crystal/Resonator Oscillator
- XT: Crystal/Resonator Oscillator
- LF: Low Frequency Crystal Oscillator
Wide-operating voltage range:
- EPROM : 2.3V to 5.5V
- ROM : 2.3V to 5.5V
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Rev1.5 May 21, 2010
P.1/FM8PE51



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FM8PE51 pdf
FEELING
TECHNOLOGY
FM8PE51
GENERAL DESCRIPTION
The FM8PE51 series is a family of low-cost, high speed, high noise immunity, EPROM/ROM-based 8-bit CMOS
microcontrollers. It employs a RISC architecture with only 47 instructions. All instructions are single cycle except
for program branches which take two cycles. The easy to use and easy to remember instruction set reduces
development time significantly.
The FM8PE51 series consists of Power-on Reset (POR), Brown-out Reset (BOR), Power-up Reset Timer (PWRT),
Oscillator Start-up Timer(OST), Watchdog Timer, EPROM/ROM, SRAM, tri-state I/O port, I/O pull-high/open-drain
control, Power saving SLEEP mode, 4 real time programmable clock/counter, Interrupt, SPI, RFC, data compare,
Wake-up from SLEEP mode, and Code Protection for EPROM products. There are three oscillator configurations to
choose from, including the power-saving LP (Low Power) oscillator and cost saving RC oscillator.
The FM8PE51 series address 4K×13 of program memory.
The FM8PE51 series can directly or indirectly address its register files and data memory. All special function
registers including the program counter are mapped in the data memory.
BLOCK DIAGRAM
Oscillator
Circuit
Watchdog
Timer
ALU
Interrupt
Control
PWM
5-level
STACK
Program
Counter
EPROM
/ ROM
SRAM
FSR
Instruction
Decoder
Timer 0 ~ 3
RFC
Accumulator
SPI
PORTE
PORTD
PORTC
PORTB
PORTA
Rev1.5 May 21, 2010
P.2/FM8PE51



Part Number FM8PE51
Description EPROM/ROM-Based 8-Bit Microcontroller
Maker Feeling Technology - Feeling Technology
Total Page 30 Pages
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