參數(shù)資料
型號: PIC16C505-20/P
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PDIP14
封裝: 0.300 INCH, PLASTIC, DIP-14
文件頁數(shù): 85/85頁
文件大?。?/td> 1205K
代理商: PIC16C505-20/P
1999 Microchip Technology Inc.
DS40192C-page 9
PIC16C505
TABLE 3-1:
PIC16C505 PINOUT DESCRIPTION
Name
DIP
Pin #
SOIC
Pin #
I/O/P
Type
Buffer
Type
Description
RB0
13
I/O
TTL/ST Bi-directional I/O port/ serial programming data. Can
be software programmed for internal weak pull-up and
wake-up from SLEEP on pin change. This buffer is a
Schmitt Trigger input when used in serial programming
mode.
RB1
12
I/O
TTL/ST Bi-directional I/O port/ serial programming clock. Can
be software programmed for internal weak pull-up and
wake-up from SLEEP on pin change. This buffer is a
Schmitt Trigger input when used in serial programming
mode.
RB2
11
I/O
TTL
Bi-directional I/O port.
RB3/MCLR/VPP
4
I
TTL/ST Input port/master clear (reset) input/programming volt-
age input. When configured as MCLR, this pin is an
active low reset to the device. Voltage on MCLR/VPP
must not exceed VDD during normal device operation.
Can be software programmed for internal weak pull-up
and wake-up from SLEEP on pin change. Weak pull-
up only when configured as RB3. ST when configured
as MCLR.
RB4/OSC2/CLKOUT
3
I/O
TTL
Bi-directional I/O port/oscillator crystal output. Con-
nections to crystal or resonator in crystal oscillator
mode (XT and LP modes only, RB4 in other modes).
Can be software programmed for internal weak pull-up
and wake-up from SLEEP on pin change. In EXTRC
and INTRC modes, the pin output can be configured to
CLKOUT, which has 1/4 the frequency of OSC1 and
denotes the instruction cycle rate.
RB5/OSC1/CLKIN
2
I/O
TTL/ST Bidirectional IO port/oscillator crystal input/external
clock source input (RB5 in Internal RC mode only,
OSC1 in all other oscillator modes). TTL input when
RB5, ST input in external RC oscillator mode.
RC0
10
I/O
TTL
Bi-directional I/O port.
RC1
9
I/O
TTL
Bi-directional I/O port.
RC2
8
I/O
TTL
Bi-directional I/O port.
RC3
7
I/O
TTL
Bi-directional I/O port.
RC4
6
I/O
TTL
Bi-directional I/O port.
RC5/T0CKI
5
I/O
ST
Bi-directional I/O port. Can be configured as T0CKI.
VDD
11
P
Positive supply for logic and I/O pins
VSS
14
P
Ground reference for logic and I/O pins
Legend: I = input, O = output, I/O = input/output, P = power, — = not used, TTL = TTL input,
ST = Schmitt Trigger input
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