參數(shù)資料
型號： PIC16CR77-I/ML
廠商： Microchip Technology
文件頁數(shù)： 113/172頁
文件大?。?/td> 0K
描述： IC PIC MCU 8KX14 44QFN
標準包裝： 45
系列： PIC® 16C
核心處理器： PIC
芯體尺寸： 8-位
速度： 20MHz
連通性： I²C，SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 33
程序存儲器容量： 14KB（8K x 14）
程序存儲器類型： ROM
RAM 容量： 368 x 8
電壓 - 電源 (Vcc/Vdd)： 2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x8b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 44-VQFN 裸露焊盤
包裝： 管件
2007 Microchip Technology Inc.
DS21993C-page 43
PIC16CR7X
5.0
TIMER0 MODULE
The Timer0 module timer/counter has the following
features:
8-bit timer/counter
Readable and writable
8-bit software programmable prescaler
Internal or external clock select
Interrupt on overflow from FFh to 00h
Edge select for external clock
Additional information on the Timer0 module is
available in the “PIC Mid-Range MCU Family
Reference Manual” (DS33023).
Figure 5-1 is a block diagram of the Timer0 module and
the prescaler shared with the WDT.
Timer0
operation
is
controlled
through
the
OPTION_REG register (Register 5-1 on the following
page). Timer mode is selected by clearing bit T0CS
(OPTION_REG<5>). In Timer mode, the Timer0 mod-
ule will increment every instruction cycle (without pres-
caler). If the TMR0 register is written, the increment is
inhibited for the following two instruction cycles. The
user can work around this by writing an adjusted value
to the TMR0 register.
Counter mode is selected by setting bit T0CS
(OPTION_REG<5>). In Counter mode, Timer0 will
increment, either on every rising or falling edge of pin
RA4/T0CKI. The incrementing edge is determined by
the
Timer0
Source
Edge
Select
bit
T0SE
(OPTION_REG<4>). Clearing bit T0SE selects the ris-
ing edge. Restrictions on the external clock input are
discussed in detail in Section 5.2 “Using Timer0 with
The prescaler is mutually exclusively shared between
the Timer0 module and the Watchdog Timer. The
prescaler is not readable or writable. Section 5.3
“Prescaler” details the operation of the prescaler.
5.1
Timer0 Interrupt
The TMR0 interrupt is generated when the TMR0 reg-
ister overflows from FFh to 00h. This overflow sets bit
TMR0IF (INTCON<2>). The interrupt can be masked
by clearing bit TMR0IE (INTCON<5>). Bit TMR0IF
must be cleared in software by the Timer0 module
Interrupt Service Routine, before re-enabling this inter-
rupt. The TMR0 interrupt cannot awaken the processor
from Sleep, since the timer is shut-off during Sleep.
FIGURE 5-1:
BLOCK DIAGRAM OF THE TIMER0 MODULE AND PRESCALER
RA4/T0CKI
T0SE
pin
M
U
X
CLKOUT (= FOSC/4)
SYNC
2
Cycles
TMR0 Reg
8-bit Prescaler
8-to-1 MUX
M
U
X
M U X
Watchdog
Timer
PSA
0
1
0
1
WDT
Time-out
PS2:PS0
8
Note: T0CS, T0SE, PSA, PS2:PS0 are (OPTION_REG<5:0>).
PSA
WDT Enable bit
M
U
X
0
1
0
1
Data Bus
Set Flag bit TMR0IF
on Overflow
8
PSA
T0CS
PRESCALER
相關(guān)PDF資料
PDF描述
PIC16CR74T-I/PT IC PIC MCU 4KX14 44TQFP
PIC16F627A-I/ML IC MCU FLASH 1KX14 EEPROM 28QFN
PIC24F08KL401-I/P IC MCU 16BIT 8KB FLASH 20-PDIP
PIC16LF727-I/P IC PIC MCU FLASH 8K 1.8V 40-DIP
PIC12C672-10/SM IC MCU OTP 2KX14 A/D 8-SOIJ
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC16CR77T-I/ML 功能描述:IC PIC MCU 8KX14 44QFN RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:PIC® 16C 產(chǎn)品培訓(xùn)模塊:Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio 標準包裝:42 系列:PIC® 16C 核心處理器:PIC 芯體尺寸:8-位 速度:20MHz 連通性:- 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):13 程序存儲器容量:3.5KB（2K x 14） 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:128 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 4x8b 振蕩器型:外部 工作溫度:-40°C ~ 85°C 封裝/外殼:18-SOIC（0.295"，7.50mm 寬） 包裝:管件 配用:XLT18SO-1-ND - SOCKET TRANSITION 18SOIC 300MILISPICR1-ND - ADAPTER IN-CIRCUIT PROGRAMMING309-1011-ND - ADAPTER 18-SOIC TO 18-DIP309-1010-ND - ADAPTER 18-SOIC TO 18-DIPAC164010-ND - MODULE SKT PROMATEII DIP/SOIC
PIC16CR77T-I/PT 功能描述:IC PIC MCU 8KX14 44TQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:PIC® 16C 產(chǎn)品培訓(xùn)模塊:Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio 標準包裝:42 系列:PIC® 16C 核心處理器:PIC 芯體尺寸:8-位 速度:20MHz 連通性:- 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):13 程序存儲器容量:3.5KB（2K x 14） 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:128 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 4x8b 振蕩器型:外部 工作溫度:-40°C ~ 85°C 封裝/外殼:18-SOIC（0.295"，7.50mm 寬） 包裝:管件 配用:XLT18SO-1-ND - SOCKET TRANSITION 18SOIC 300MILISPICR1-ND - ADAPTER IN-CIRCUIT PROGRAMMING309-1011-ND - ADAPTER 18-SOIC TO 18-DIP309-1010-ND - ADAPTER 18-SOIC TO 18-DIPAC164010-ND - MODULE SKT PROMATEII DIP/SOIC
PIC16CR83T-04/SO023 制造商:Microchip Technology Inc 功能描述:
PIC16F 制造商:Microchip Technology Inc 功能描述:Microchip PIC16F677-I/P Microcontroller
PIC16F1454-E/ML 制造商:Microchip Technology Inc 功能描述:7 KB FLASH, 512 BYTES RAM, 48 MHZ INT. OSC, 12 I/0, ENHANCED - Rail/Tube 制造商:Microchip Technology Inc 功能描述:IC MCU 8BIT 7KB FLASH 16QFN
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*