- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄368023 > PIC16C505 (Microchip Technology Inc.) 14-Pin, 8-Bit CMOS Microcontroller(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,12個(gè)I/O口，帶WDT的微控制器) PDF資料下載
參數(shù)資料
| 型號(hào)： | PIC16C505 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 14-Pin, 8-Bit CMOS Microcontroller(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,12個(gè)I/O口，帶WDT的微控制器) |
| 中文描述： | 14引腳，8位CMOS微控制器（每個(gè)的I / O口有25毫安驅(qū)動(dòng)/吸收電流，12個(gè)的I / O口，帶看門狗的微控制器） |
| 文件頁(yè)數(shù)： | 19/80頁(yè) |
| 文件大小： | 617K |
| 代理商： | PIC16C505 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)當(dāng)前第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)
1998 Microchip Technology Inc.
Preliminary
DS40192A-page 19
PIC16C505
5.0
I/O PORT
As with any other register, the I/O register can be
written and read under program control. However,
read instructions (e.g.,
MOVF PORTB,W
) always read
the I/O pins independent of the pin’s input/output
modes. On RESET, all I/O ports are defined as input
(inputs are at hi-impedance) since the I/O control
registers are all set.
5.1
PORTB
PORTB is an 8-bit I/O register. Only the low order 6
bits are used (RB5:RB0). Bits 7 and 6 are
unimplemented and read as '0's. Please note that RB3
is an input only pin. The configuration word can set
several I/O’s to alternate functions. When acting as
alternate functions the pins will read as ‘0’ during port
read. Pins RB0, RB1, RB3 and RB4 can be configured
with weak pull-ups and also with wake-up on change.
The wake-up on change and weak pull-up functions
are not pin selectable. If pin 4 is configured as MCLR,
weak pull-up is always off and wake-up on change for
this pin is not enabled.
5.2
PORTC
PORTC is an 8-bit I/O register. Only the low order 6
bits are used (RC5:RC0). Bits 7 and 6 are unimple-
mented and read as ‘0’s.
5.3
TRIS Registers
The output driver control register is loaded with the
contents of the W register by executing the
TRIS
f
instruction. A '1' from a TRIS register bit puts the
corresponding output driver in a hi-impedance mode.
A '0' puts the contents of the output data latch on the
selected pins, enabling the output buffer. The
exceptions are RB3 which is input only and RC5 which
may be controlled by the option register, see Figure 4-
4.
The TRIS registers are “write-only” and are set (output
drivers disabled) upon RESET.
Note:
A read of the ports reads the pins, not the
output data latches. That is, if an output
driver on a pin is enabled and driven high,
but the external system is holding it low, a
read of the port will indicate that the pin is
low.
5.4
I/O Interfacing
The equivalent circuit for an I/O port pin is shown in
Figure 5-1. All port pins, except RB3 which is input
only, may be used for both input and output
operations. For input operations these ports are non-
latching. Any input must be present until read by an
input instruction (e.g.,
MOVF PORTB,W
). The outputs
are latched and remain unchanged until the output
latch is rewritten. To use a port pin as output, the
corresponding direction control bit in TRIS must be
cleared (= 0). For use as an input, the corresponding
TRIS bit must be set. Any I/O pin (except RB3) can be
programmed individually as input or output.
FIGURE 5-1:
EQUIVALENT CIRCUIT
FOR A SINGLE I/O PIN
Note 1: I/O pins have protection diodes to V
DD
and V
SS
.
Data
Bus
Q
D
Q
CK
Q
D
Q
CK
P
N
WR
Port
TRIS ‘f’
Data
Latch
TRIS
Latch
RD Port
V
SS
V
DD
I/O
pin
(1)
W
Reg
Reset
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PIC16C54C | EPROM/ROM-Based 8-Bit CMOS Microcontroller(18引腳、12個(gè)I/O端口、512位EPROM/ROM的8位CMOS微控制器) |
| PIC16C54 | EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個(gè)I/O口有20mA吸收,25mA驅(qū)動(dòng),12個(gè)I/O，2.5V的微控制器) |
| PIC16CR54B | EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個(gè)I/O口有20mA吸收,25mA驅(qū)動(dòng),12個(gè)I/O，2.5V的微控制器) |
| PIC16CR56A | EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個(gè)I/O有20mA吸收/25mA驅(qū)動(dòng),12個(gè)I/O，2.5V的微控制器) |
| PIC16CR57B | EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個(gè)I/O有20mA吸收/25mA驅(qū)動(dòng),20個(gè)I/O，2.5V的微控制器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC16C505/JW | 功能描述:8位微控制器 -MCU 1.5KB 72 RAM 12 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 |
| PIC16C505-04/P | 功能描述:8位微控制器 -MCU 1.5KB 72 RAM 12 I/O 4MHz PDIP14 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 |
| PIC16C505-04/P | 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU (TUBE 30) 16C505 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C505 DIP14 |
| PIC16C505-04/SL | 功能描述:8位微控制器 -MCU 1.5KB 72 RAM 12 I/O 4MHz SOIC14 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 |
| PIC16C505-04/SL | 制造商:Microchip Technology Inc 功能描述:8BIT CMOS MCU SMD 16C505 SOIC14 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。