- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄299771 > PIC16LC662T-04/L 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PQCC44 PDF資料下載
參數(shù)資料
| 型號(hào)： | PIC16LC662T-04/L |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 59/136頁 |
| 文件大?。?/td> | 634K |
| 代理商： | PIC16LC662T-04/L |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁當(dāng)前第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁
1996 Microchip Technology Inc.
Preliminary
DS30559A-page 29
PIC16C64X & PIC16C66X
5.0
I/O PORTS
The PIC16C641 and PIC16C642 have three ports,
PORTA,
PORTB,
and
PORTC.
PIC16C661
and
PIC16C662 devices have ve ports, PORTA through
PORTE. Some pins for these I/O ports are multiplexed
with alternate functions for the peripheral features on
the device. In general, when a peripheral is enabled,
that pin may not be used as a general purpose I/O pin.
5.1
PORTA and TRISA Registers
PORTA is a 6-bit wide latch. RA4 is a Schmitt Trigger
input and an open drain output. Pin RA4 is multiplexed
with the T0CKI clock input. All other RA port pins have
Schmitt Trigger input levels and full CMOS output driv-
ers. All pins have data direction bits (TRIS registers)
which can congure these pins as input or output.
Setting a bit in the TRISA register puts the correspond-
ing output driver in a hi-impedance mode. Clearing a bit
in the TRISA register puts the contents of the output
latch on the selected pin.
Reading the PORTA register reads the status of the
pins, whereas writing to it will write to the port latch. All
write operations are read-modify-write operations.
Therefore, a write to a port implies that the port pins are
read, this value is modied, and then written to the port
data latch.
The PORTA pins are multiplexed with comparator and
voltage reference functions. The operation of these
pins are selected by control bits in the CMCON
(comparator control register) register and the VRCON
(voltage reference control) register. When selected as
comparator inputs, these pins will read as '0's.
FIGURE 5-1:
BLOCK DIAGRAM OF
RA1:RA0 PINS
TRISA controls the direction of the RA pins, even when
they are being used as comparator inputs. The user
must make sure to keep the pins congured as inputs
when using them as comparator inputs.
The RA2 pin will also function as the output for the
voltage reference. When in this mode, the VREF pin is
a very hi-impedance output. The user must set the
TRISA<2> bit and use hi-impedance loads.
In one of the comparator modes dened by the
CMCON register, pins RA3 and RA4 become outputs
of the comparators. The TRISA<4:3> bits must be
cleared to enable outputs to use this function.
EXAMPLE 5-1:
INITIALIZING PORTA
CLRF
PORTA
;Initialize PORTA by
;clearing output latches
MOVLW
0x07
;Turn comparators off,
MOVWF
CMCON
;enable pins for I/O
BSF
STATUS, RP0
;Select bank1
MOVLW
0x1F
;Value to initialize
;data direction
MOVWF
TRISA
;Set RA<4:0> as inputs
;TRISA<7:5> are clear
Note:
On reset, the TRISA register is set to all
inputs. The digital inputs are disabled and
the comparator inputs are forced to ground
to reduce excess current consumption.
Note: I/O pins have protection diodes to VDD and VSS.
Data
bus
Q
D
Q
CK
P
N
WR
Port
WR
TRIS
Data Latch
TRIS Latch
RD TRIS
RD PORT
Analog
VSS
VDD
I/O Pin
Q
D
Q
CK
Input Mode
D
Q
EN
To Comparator
Schmitt Trigger
Input Buffer
This document was created with FrameMaker404
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PIC16C662T-20I/P | 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PDIP40 |
| PIC16C662T-20I/L | 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PQCC44 |
| PIC16C662T-04E/TQ | 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PQFP44 |
| PIC16LC715T-04/SS | 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PDSO20 |
| PIC16LC77-20I/TQ | 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PQFP44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC16LC66T-04/SO | 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 I/O 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(chǔ)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 |
| PIC16LC66T-04I/SO | 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 I/O 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(chǔ)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 |
| PIC16LC67-04/L | 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 I/O 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(chǔ)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 |
| PIC16LC67-04/P | 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 I/O 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(chǔ)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 |
| PIC16LC67-04/PQ | 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 I/O 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(chǔ)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)。