參數(shù)資料
型號： PIC18F45J10T-E/PT
廠商： Microchip Technology
文件頁數(shù)： 16/80頁
文件大?。?/td> 0K
描述： IC PIC MCU FLASH 16KX16 44TQFP
標(biāo)準(zhǔn)包裝： 1,200
系列： PIC® 18F
核心處理器： PIC
芯體尺寸： 8-位
速度： 40MHz
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)： 32
程序存儲器容量： 32KB（16K x 16）
程序存儲器類型： 閃存
RAM 容量： 1K x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 13x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 125°C
封裝/外殼： 44-TQFP
包裝： 帶卷 (TR)
配用： AC162074-ND - HEADER INTRFC MPLAB ICD2 44TQFP
MA180013-ND - MODULE PLUG-IN 18F45J10 44TQFP
AC162067-ND - HEADER INTRFC MPLAB ICD2 40/28P
AC164330-ND - MODULE SKT FOR 44TQFP 18F45J10
PIC16F8X
1998 Microchip Technology Inc.
DS30430C-page 23
5.2
PORTB and TRISB Registers
PORTB is an 8-bit wide bi-directional port. The
corresponding data direction register is TRISB. A ’1’ on
any bit in the TRISB register puts the corresponding
output driver in a hi-impedance mode. A ’0’ on any bit
in the TRISB register puts the contents of the output
latch on the selected pin(s).
Each of the PORTB pins have a weak internal pull-up.
A single control bit can turn on all the pull-ups. This is
done by clearing the RBPU (OPTION_REG<7>) bit.
The weak pull-up is automatically turned off when the
port pin is configured as an output. The pull-ups are
disabled on a Power-on Reset.
Four of PORTB’s pins, RB7:RB4, have an interrupt on
change feature. Only pins configured as inputs can
cause this interrupt to occur (i.e., any RB7:RB4 pin
configured as an output is excluded from the interrupt
on change comparison). The pins value in input mode
are compared with the old value latched on the last
read of PORTB. The “mismatch” outputs of the pins are
OR’ed
together
to
generate
the
RB
port
change interrupt.
FIGURE 5-3:
BLOCK DIAGRAM OF PINS
RB7:RB4
This interrupt can wake the device from SLEEP. The
user, in the interrupt service routine, can clear the
interrupt in the following manner:
a)
Read (or write) PORTB. This will end the mis-
match condition.
b)
Clear flag bit RBIF.
A mismatch condition will continue to set the RBIF bit.
Reading PORTB will end the mismatch condition, and
allow the RBIF bit to be cleared.
This interrupt on mismatch feature, together with
software configurable pull-ups on these four pins allow
easy interface to a key pad and make it possible for
wake-up on key-depression (see AN552 in the
Embedded Control Handbook).
The interrupt on change feature is recommended for
wake-up on key depression operation and operations
where PORTB is only used for the interrupt on change
feature. Polling of PORTB is not recommended while
using the interrupt on change feature.
FIGURE 5-4:
BLOCK DIAGRAM OF PINS
RB3:RB0
RBPU(1)
Data Latch
From other
P
VDD
Q
D
CK
Q
D
CK
QD
EN
QD
EN
Data bus
WR Port
WR TRIS
Set RBIF
TRIS Latch
RD TRIS
RD Port
RB7:RB4 pins
weak
pull-up
RD Port
Latch
TTL
Input
Buffer
Note
1: TRISB = ’1’ enables weak pull-up
(if RBPU = ’0’ in the OPTION_REG register).
2: I/O pins have diode protection to VDD and VSS.
I/O
pin(2)
Note 1: For a change on the I/O pin to be
recognized, the pulse width must be at
least TCY (4/fOSC) wide.
RBPU(1)
I/O
pin(2)
Data Latch
P
VDD
Q
D
CK
Q
D
CK
QD
EN
Data bus
WR Port
WR TRIS
RD TRIS
RD Port
weak
pull-up
RD Port
RB0/INT
TTL
Input
Buffer
Schmitt Trigger
Buffer
TRIS Latch
Note
1: TRISB = ’1’ enables weak pull-up
(if RBPU = ’0’ in the OPTION_REG register).
2: I/O pins have diode protection to VDD and VSS.
相關(guān)PDF資料
PDF描述
PIC18F4450T-I/PT IC PIC MCU FLASH 8KX16 44TQFP
PIC18F4450T-I/ML IC PIC MCU FLASH 8KX16 44QFN
PIC18F4321T-I/ML IC PIC MCU FLASH 4KX16 44QFN
PIC18F4221T-I/ML IC PIC MCU FLASH 2KX16 44QFN
PIC18F2321T-I/ML IC PIC MCU FLASH 4KX16 28QFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC18F45J10T-I/ML 功能描述:8位微控制器 -MCU 32 KB FL 1024 RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC18F45J10T-I/PT 功能描述:8位微控制器 -MCU 32 KB FL 1024 RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC18F45J11-I/ML 功能描述:8位微控制器 -MCU 32KB Flash 4KBRAM 12MIPS nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC18F45J11-I/PT 功能描述:8位微控制器 -MCU 32KB Flash 4KBRAM 12MIPS nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC18F45J11T-I/ML 功能描述:8位微控制器 -MCU 32KB Flash 4KBRAM 12MIPS nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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(jìn)入我的后臺，查看報(bào)價(jià)

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*