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鍙冩暩(sh霉)璩囨枡
| 鍨嬭櫉锛� | PIC16F870-I/SS |
| 寤犲晢锛� | Microchip Technology |
| 鏂囦欢闋佹暩(sh霉)锛� | 142/143闋� |
| 鏂囦欢澶�?銆�?/td> | 0K |
| 鎻忚堪锛� | IC MCU FLASH 2KX14 EE 28SSOP |
| 鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� | Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio |
| 妯�(bi膩o)婧�(zh菙n)鍖呰锛� | 47 |
| 绯诲垪锛� | PIC® 16F |
| 鏍稿績铏曠悊鍣細 | PIC |
| 鑺珨灏哄锛� | 8-浣� |
| 閫熷害锛� | 20MHz |
| 閫ｉ€氭€э細 | UART/USART |
| 澶栧湇瑷�(sh猫)鍌欙細 | 娆犲妾㈡脯/寰�(f霉)浣嶏紝POR锛孭WM锛學DT |
| 杓稿叆/杓稿嚭鏁�(sh霉)锛� | 22 |
| 绋嬪簭瀛樺劜鍣ㄥ閲忥細 | 3.5KB锛�2K x 14锛� |
| 绋嬪簭瀛樺劜鍣ㄩ鍨嬶細 | 闁冨瓨 |
| EEPROM 澶�?銆�?/td> | 64 x 8 |
| RAM 瀹归噺锛� | 128 x 8 |
| 闆诲 - 闆绘簮 (Vcc/Vdd)锛� | 4 V ~ 5.5 V |
| 鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛� | A/D 5x10b |
| 鎸暕鍣ㄥ瀷锛� | 澶栭儴 |
| 宸ヤ綔婧害锛� | -40°C ~ 85°C |
| 灏佽/澶栨锛� | 28-SSOP锛�0.209"锛�5.30mm 瀵級 |
| 鍖呰锛� | 绠′欢 |
| 鐢�(ch菐n)鍝佺洰閷勯爜闈細 | 639 (CN2011-ZH PDF) |
| 閰嶇敤锛� | I3-DB16F871-ND - BOARD DAUGHTER ICEPIC3 AC164307-ND - MODULE SKT FOR PM3 28SSOP AC164020-ND - MODULE SKT PROMATEII 44TQFP |
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PIC16F870/871
DS30569B-page 96
2003 Microchip Technology Inc.
FIGURE 11-8:
SLOW RISE TIME (MCLR TIED TO VDD)
11.10 Interrupts
The PIC16F870/871 family has up to 14 sources of
interrupt. The Interrupt Control register (INTCON)
records individual interrupt requests in flag bits. It also
has individual and global interrupt enable bits.
A global interrupt enable bit, GIE (INTCON<7>),
enables (if set) all unmasked interrupts, or disables (if
cleared) all interrupts. When bit GIE is enabled, and an
interrupt鈥檚 flag bit and mask bit are set, the interrupt will
vector immediately. Individual interrupts can be dis-
abled through their corresponding enable bits in vari-
ous
registers.
Individual
interrupt
bits
are
set,
regardless of the status of the GIE bit. The GIE bit is
cleared on RESET.
The 鈥渞eturn from interrupt鈥� instruction, RETFIE, exits
the interrupt routine as well as sets the GIE bit, which
re-enables interrupts.
The RB0/INT pin interrupt, the RB port change
interrupt, and the TMR0 overflow interrupt flags are
contained in the INTCON register.
The peripheral interrupt flags are contained in the spe-
cial function registers, PIR1 and PIR2. The correspond-
ing interrupt enable bits are contained in special
function registers, PIE1 and PIE2, and the peripheral
interrupt enable bit is contained in special function
register, INTCON.
When an interrupt is responded to, the GIE bit is
cleared to disable any further interrupt, the return
address is pushed onto the stack and the PC is loaded
with 0004h. Once in the Interrupt Service Routine, the
source(s) of the interrupt can be determined by polling
the interrupt flag bits. The interrupt flag bit(s) must be
cleared in software before re-enabling interrupts to
avoid recursive interrupts.
For external interrupt events, such as the INT pin or
PORTB change interrupt, the interrupt latency will be
three or four instruction cycles. The exact latency
depends when the interrupt event occurs. The latency
is the same for one or two-cycle instructions. Individual
interrupt flag bits are set, regardless of the status of
their corresponding mask bit, PEIE bit, or GIE bit.
VDD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET
0V
1V
5V
TPWRT
TOST
Note:
Individual interrupt flag bits are set,
regardless
of
the
status
of
their
corresponding mask bit, or the GIE bit.
鐩搁棞(gu膩n)PDF璩囨枡 |
PDF鎻忚堪 |
|---|---|
| XF2C-3955-41A | CONNECTOR FPC 39POS 0.3MM SMD |
| XF2C-3555-41A | CONNECTOR FPC 35POS 0.3MM SMD |
| XF2C-2955-41A | CONNECTOR FPC 29POS 0.3MM SMD |
| XF2C-2555-41A | CONNECTOR FPC 25POS 0.3MM SMD |
| XF2C-2155-41A | CONNECTOR FPC 21POS 0.3MM SMD |
鐩搁棞(gu膩n)浠ｇ悊鍟�/鎶€琛�(sh霉)鍙冩暩(sh霉) |
鍙冩暩(sh霉)鎻忚堪 |
|---|---|
| PIC16F870T-E/SO | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 3.5KB 128 RAM 22 I/O RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F870T-E/SS | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 3.5KB 128 RAM 22 I/O RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F870T-I/SO | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 3.5KB 128 RAM 22 I/O RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F870T-I/SS | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 3.5KB 128 RAM 22 I/O RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F871-E/L | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 3.5KB 128 RAM 33 I/O RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
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