參數(shù)資料
型號(hào)： MCHRC705KJ1CDWE
廠商： Freescale Semiconductor
文件頁(yè)數(shù)： 56/108頁(yè)
文件大?。?/td> 0K
描述： IC MCU 8BIT 64 BYTES RAM 16-S0IC
標(biāo)準(zhǔn)包裝： 47
系列： HC05
核心處理器： HC05
芯體尺寸： 8-位
速度： 4MHz
外圍設(shè)備： POR，WDT
輸入/輸出數(shù)： 10
程序存儲(chǔ)器容量： 1.2KB（1.2K x 8）
程序存儲(chǔ)器類型： OTP
RAM 容量： 64 x 8
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 5.5 V
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 16-SOIC（0.295"，7.50mm 寬）
包裝： 管件
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
Freescale Semiconductor
51
Chapter 5
External Interrupt Module (IRQ)
5.1 Introduction
The external interrupt (IRQ) module provides asynchronous external interrupts to the CPU. The following
sources can generate external interrupts:
IRQ/VPP pin
PA0–PA3 pins
5.2 Features
The external interrupt module (IRQ) includes these features:
Dedicated external interrupt pin (IRQ/VPP)
Selectable interrupt on four input/output (I/O) pins (PA0–PA3)
Programmable edge-only or edge- and level-interrupt sensitivity
5.3 Operation
The interrupt request/programming voltage pin (IRQ/VPP) and port A pins 0–3 (PA0–PA3) provide
external interrupts. The PIRQ bit in the mask option register (MOR) enables PA0–PA3 as IRQ interrupt
sources, which are combined into a single OR’ing function to be latched by the IRQ latch. Figure 5-1
shows the structure of the IRQ module.
After completing its current instruction, the CPU tests the IRQ latch. If the IRQ latch is set, the CPU then
tests the I bit in the condition code register and the IRQE bit in the IRQ status and control register. If the
I bit is clear and the IRQE bit is set, the CPU then begins the interrupt sequence. This interrupt is serviced
by the interrupt service routine located at $07FA and $07FB.
The CPU clears the IRQ latch while it fetches the interrupt vector, so that another external interrupt
request can be latched during the interrupt service routine. As soon as the I bit is cleared during the return
from interrupt, the CPU can recognize the new interrupt request. Figure 5-3 shows the sequence of events
caused by an interrupt.
5.3.1 IRQ/VPP Pin
An interrupt signal on the IRQ/VPP pin latches an external interrupt request. The LEVEL bit in the mask
option register provides negative edge-sensitive triggering or both negative edge-sensitive and low
level-sensitive triggering for the interrupt function.
If edge- and level-sensitive triggering is selected, a falling edge or a low level on the IRQ/VPP pin latches
an external interrupt request. Edge- and level-sensitive triggering allows the use of multiple wired-OR
external interrupt sources. An external interrupt request is latched as long as any source is holding the
IRQ/VPP pin low.
If level-sensitive triggering is selected, the IRQ/VPP input requires an external resistor to VDD for wired-OR
operation. If the IRQ/VPP pin is not used, it must be tied to the VDD supply.
相關(guān)PDF資料
PDF描述
MCHRC705JJ7CPE IC MCU 8BIT 224 BYTES RAM 20PDIP
MCHLC705KJ1CDWE IC MCU 8BIT 64 BYTES RAM 16-SOIC
EFM32GG230F1024 IC MCU 32BIT 1024KB FLASH 64QFN
VJ2225A153JBAAT4X CAP CER 0.015UF 50V 5% NP0 2225
VE-B6W-CU-B1 CONVERTER MOD DC/DC 5.5V 200W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCHRC705KJ1CPE 功能描述:IC MCU 1.2K 4MHZ OTP 16-DIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:8KB（8K x 8） 程序存儲(chǔ)器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285
MCHRC908JK1CPE 功能描述:IC MCU 1.5K FLASH 8BIT 20-PDIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC08 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:8KB（8K x 8） 程序存儲(chǔ)器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285
MCHRC908JK3CPE 功能描述:IC MCU 4K FLASH 20-PDIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC08 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:8KB（8K x 8） 程序存儲(chǔ)器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285
MCHRM2H-S-DC12V-C 制造商:SPC Multicomp 功能描述:RELAY POWER SPDT 12VDC COIL 0.54W 制造商:SPC Multicomp 功能描述:RELAY, POWER, SPDT, 12VDC COIL, 0.54W 制造商:SPC Multicomp 功能描述:RELAY, POWER, SPDT, 12VDC COIL, 0.54W; Relay Type:Power; Coil Voltage VDC Nom:12V; Contact Current Max:16A; Contact Voltage AC Nom:250V; Contact Voltage DC Nom:30V; Coil Resistance:267ohm; Coil Type:DC; Nom Operating Power:540mW; ;RoHS Compliant: Yes
MCHRM2H-S-DC24V-C 制造商:SPC Multicomp 功能描述:RELAY POWER SPDT 24VDC COIL 0.54W 制造商:SPC Multicomp 功能描述:RELAY, POWER, SPDT, 24VDC COIL, 0.54W 制造商:SPC Multicomp 功能描述:RELAY, POWER, SPDT, 24VDC COIL, 0.54W; Relay Type:Power; Coil Voltage VDC Nom:24V; Contact Current Max:16A; Contact Voltage AC Nom:250V; Contact Voltage DC Nom:30V; Coil Resistance:1.067kohm; Coil Type:DC; Nom Operating Power:540mW; ;RoHS Compliant: Yes
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*