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店铺已关闭且信息已无效
详细说明
描述:
only 42 single word instructions
all instructions are single cycle except for program branches which are two-cycle
13-bit wi de instructions
all eprom area goto instruction
all eprom area subroutine call instruction
8-bit wide data path
5-level deep hardware stack
operating speed: dc-20 mhz clock inpu
dc-100 ns instruction cycle
device
pins #
i/o #
eprom (word)
ram (byte)
fm8pb513b
8
6
1k
49
direct, indirect addressing modes for data accessing
8-bit real time clock/counter (timer0) with 8-bit programmable prescaler
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 reli able operation and soft-ware watch-dog
enable/disable control
one i/o port iob with independent direction control
soft-ware i/o pull-high/pull-down or open-drain control
one internal interrupt source: timer0 overflow; two external interrupt source: int pin, port b input change
wake-up from sleep by int pin or port b input change
power saving sleep mode
built-in 8mhz, 4mhz, 1mhz, and 455khz internal rc oscillator
programmable code protection
selectable oscillator options:
- erc: external resistor/capacitor oscillator
- hf: high frequency crystal/resonator oscillator
- xt: crystal/resonator oscillator
- lf: low frequency crystal oscillator
- irc: internal resistor/capacitor oscill ator
- eric: external resistor/internal capacitor oscillator
wide-operating voltage range: 2.0v to 5.5v
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