參數(shù)資料
型號： PIC12F1840-E/P
廠商： Microchip Technology
文件頁數(shù)： 15/122頁
文件大?。?/td> 0K
描述： MCU 7KB FLASH 256B RAM XLP 8PDIP
產(chǎn)品培訓(xùn)模塊： 8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝： 60
系列： PIC® XLP™ 12F
核心處理器： PIC
芯體尺寸： 8-位
速度： 32MHz
連通性： I²C，LIN，SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 5
程序存儲器容量： 7KB（4K x 14）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量： 256 x 8
電壓 - 電源 (Vcc/Vdd)： 2.3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 4x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 125°C
封裝/外殼： 8-DIP（0.300"，7.62mm）
包裝： 管件
2011 Microchip Technology Inc.
Preliminary
DS41441B-page 111
PIC12(L)F1840
12.0
I/O PORTS
In general, when a peripheral is enabled, that pin may
not be used as a general purpose I/O pin.
The port has three registers for its operation. These
registers are:
TRISA register (data direction register)
PORTA register (reads the levels on the pins of
the device)
LATA register (output latch)
PORTA has the following additional registers. They
are:
ANSELA (analog select)
WPUA (weak pull-up)
The Data Latch (LATA register) is useful for
read-modify-write operations on the value that the I/O
pins are driving.
A write operation to the LATA register has the same
affect as a write to the corresponding PORTA register.
A read of the LATA register reads of the values held in
the I/O PORT latches, while a read of the PORTA
register reads the actual I/O pin value.
The port has analog functions and has an ANSELA.
register which can disable the digital input and save
power. A simplified model of a generic I/O port, without
the interfaces to other peripherals, is shown in
FIGURE 12-1:
GENERIC I/O PORT
OPERATION
12.1
Alternate Pin Function
The Alternate Pin Function Control (APFCON) register
is used to steer specific peripheral input and output
functions between different pins. The APFCON register
is shown in Register 12-1. For this device family, the
following functions can be moved between different
pins.
RX/DT
TX/CK
SDO
SS (Slave Select)
T1G
P1B
CCP1/P1A
These bits have no effect on the values of any TRIS
register. PORT and TRIS overrides will be routed to the
correct pin. The unselected pin will be unaffected.
Q
D
CK
Write LATA
Data Register
I/O pin
Read PORTA
Write PORTA
TRISA
Read LATA
Data Bus
To peripherals
ANSELA
VDD
VSS
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參數(shù)描述
PIC12F1840-I/MF 功能描述:8位微控制器 -MCU 7KB Flash EEPROM 256b 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
PIC12F1840-I/MF 制造商:Microchip Technology Inc 功能描述:; Controller Family/Series:PIC12F; Core
PIC12F1840-I/P 功能描述:8位微控制器 -MCU 7KB Flash EEPROM 256b 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
PIC12F1840-I/PC01 制造商:Microchip Technology Inc 功能描述:
PIC12F1840-I/SN 功能描述:8位微控制器 -MCU 7KB Flash EEPROM 256b 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
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