MICROCHIP一级代理单片机 PIC16F887-I/PT PIC16F887 微星

pic16f882/883/884/886/887

28/40/44-pin, enhanced flash-based 8-bit cmos microcontrollers with nanowatt technology

high-performance risc cpu:
• only 35 instructions to learn:
- all single-cycle instructions except branches
• operating speed:
- dc – 20 mhz oscillator/clock input
- dc – 200 ns instruction cycle
• interrupt capability
• 8-level deep hardware stack
• direct, indirect and relative addressing modes
special microcontroller features:
• precision internal oscillator:
- factory calibrated to ±1%
- software selectable frequency range of
8 mhz to 31 khz
- software tunable
- two-speed start-up mode
- crystal fail detect for critical applications
- clock mode switching during operation for
power savings
• power-saving sleep mode
• wide operating voltage range (2.0v-5.5v)
• industrial and extended temperature range
• power-on reset (por)
• power-up timer (pwrt) and oscillator start-up
timer (ost)
• brown-out reset (bor) with software control
option
• enhanced low-current watchdog timer (wdt)
with on-chip oscillator (software selectable
nominal 268 seconds with full prescaler) with
software enable
• multiplexed master clear with pull-up/input pin
• programmable code protection
• high endurance flash/eeprom cell:
- 100,000 write flash endurance
- 1,000,000 write eeprom endurance
- flash/data eeprom retention: > 40 years
• program memory read/write during run time
• in-circuit debugger (on board)
low-power features:
• standby current:
- 50 na @ 2.0v, typical
• operating current:
- 11μa @ 32 khz, 2.0v, typical
- 220μa @ 4 mhz, 2.0v, typical
• watchdog timer current:
- 1μa @ 2.0v, typical
peripheral features:
• 24/35 i/o pins with individual direction control:
- high current source/sink for direct led drive
- interrupt-on-change pin
- individually programmable weak pull-ups
- ultra low-power wake-up (ulpwu)
• analog comparator module with:
- two analog comparators
- programmable on-chip voltage reference
(cvref) module (% of vdd)
- fixed voltage reference (0.6v)
- comparator inputs and outputs externally
accessible
- sr latch mode
- external timer1 gate (count enable)
• a/d converter:
- 10-bit resolution and 11/14 channels
• timer0: 8-bit timer/counter with 8-bit
programmable prescaler
• enhanced timer1:
- 16-bit timer/counter with prescaler
- external gate input mode
- dedicated low-power 32 khz oscillator
• timer2: 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
• enhanced capture, compare, pwm+ module:
- 16-bit capture, max. resolution 12.5 ns
- compare, max. resolution 200 ns
- 10-bit pwm with 1, 2 or 4 output channels,
programmable “dead time”, max. frequency
20 khz
- pwm output steering control
• capture, compare, pwm module:
- 16-bit capture, max. resolution 12.5 ns
- 16-bit compare, max. resolution 200 ns
- 10-bit pwm, max. frequency 20 khz
• enhanced usart module:
- supports rs-485, rs-232, and lin 2.0
- auto-baud detect
- auto-wake-up on start bit
• in-circuit serial programmingtm (icsptm) via two
pins
• master synchronous serial port (mssp) module
supporting 3-wire spi (all 4 modes) and i2c™
master and slave modes with i2c address mask

本产品的类型是单片机，品牌是MICROCHIP，型号是PIC16F887-I/PT，功率是1，针脚数是44，用途是仪器，封装是TQFP44L，批号是原装全新