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16F874A 데이터시트, 핀배열, 회로
www.DataSheet4U.com
PIC16F87XA
Data Sheet
28/40/44-Pin Enhanced Flash
Microcontrollers
2003 Microchip Technology Inc.
DS39582B




16F874A pdf, 반도체, 판매, 대치품
PIC16F87XA
Pin Diagrams
28-Pin PDIP, SOIC, SSOP
MCLR/VPP
RA0/AN0
RA1/AN1
RA2/AN2/VREF-/CVREF
RA3/AN3/VREF+
RA4/T0CKI/C1OUT
RA5/AN4/SS/C2OUT
VSS
OSC1/CLKI
OSC2/CLKO
RC0/T1OSO/T1CKI
www.DataSheet4U.com RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
44-Pin QFN
28 RB7/PGD
27 RB6/PGC
26 RB5
25 RB4
24 RB3/PGM
23 RB2
22 RB1
21 RB0/INT
20 VDD
19 VSS
18 RC7/RX/DT
17 RC6/TX/CK
16 RC5/SDO
15 RC4/SDI/SDA
28-Pin QFN
RA2/AN2/VREF-/CVREF
RA3/AN3/VREF+
RA4/T0CKI/C1OUT
RA5/AN4/SS/C2OUT
VSS
OSC1/CLKI
OSC2/CLKO
1 21
2 20
3 PIC16F873A 19
4
5
PIC16F876A
18
17
6 16
7 15
RB3/PGM
RB2
RB1
RB0/INT
VDD
VSS
RC7/RX/DT
RC7/RX/DT
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
VSS
VDD
VDD
RB0/INT
RB1
RB2
1 33
2 32
3 31
4 30
5 PIC16F874A 29
6
7
PIC16F877A
28
27
8 26
9 25
10 24
11 23
OSC2/CLKO
OSC1/CLKI
VSS
VSS
VDD
VDD
RE2/CS/AN7
RE1/WR/AN6
RE0/RD/AN5
RA5/AN4/SS/C2OUT
RA4/T0CKI/C1OUT
DS39582B-page 2
2003 Microchip Technology Inc.

4페이지










16F874A 전자부품, 판매, 대치품
PIC16F87XA
1.0 DEVICE OVERVIEW
This document contains device specific information
about the following devices:
• PIC16F873A
• PIC16F874A
• PIC16F876A
• PIC16F877A
PIC16F873A/876A devices are available only in 28-pin
packages, while PIC16F874A/877A devices are avail-
able in 40-pin and 44-pin packages. All devices in the
PIC16F87XA family share common architecture with
the following differences:
www.DataSheet4U.com• The PIC16F873A and PIC16F874A have one-half
of the total on-chip memory of the PIC16F876A
and PIC16F877A
• The 28-pin devices have three I/O ports, while the
40/44-pin devices have five
• The 28-pin devices have fourteen interrupts, while
the 40/44-pin devices have fifteen
• The 28-pin devices have five A/D input channels,
while the 40/44-pin devices have eight
• The Parallel Slave Port is implemented only on
the 40/44-pin devices
The available features are summarized in Table 1-1.
Block diagrams of the PIC16F873A/876A and
PIC16F874A/877A devices are provided in Figure 1-1
and Figure 1-2, respectively. The pinouts for these
device families are listed in Table 1-2 and Table 1-3.
Additional information may be found in the PICmicro®
Mid-Range Reference Manual (DS33023), which may
be obtained from your local Microchip Sales Represen-
tative or downloaded from the Microchip web site. The
Reference Manual should be considered a complemen-
tary document to this data sheet and is highly recom-
mended reading for a better understanding of the device
architecture and operation of the peripheral modules.
TABLE 1-1: PIC16F87XA DEVICE FEATURES
Key Features
PIC16F873A
PIC16F874A
PIC16F876A
PIC16F877A
Operating Frequency
Resets (and Delays)
Flash Program Memory
(14-bit words)
Data Memory (bytes)
EEPROM Data Memory (bytes)
Interrupts
I/O Ports
Timers
Capture/Compare/PWM modules
Serial Communications
Parallel Communications
10-bit Analog-to-Digital Module
Analog Comparators
Instruction Set
Packages
DC – 20 MHz
POR, BOR
(PWRT, OST)
4K
DC – 20 MHz
POR, BOR
(PWRT, OST)
4K
DC – 20 MHz
POR, BOR
(PWRT, OST)
8K
DC – 20 MHz
POR, BOR
(PWRT, OST)
8K
192
128
14
Ports A, B, C
3
2
MSSP, USART
5 input channels
2
35 Instructions
28-pin PDIP
28-pin SOIC
28-pin SSOP
28-pin QFN
192
128
15
Ports A, B, C, D, E
3
2
MSSP, USART
PSP
8 input channels
2
35 Instructions
40-pin PDIP
44-pin PLCC
44-pin TQFP
44-pin QFN
368
256
14
Ports A, B, C
3
2
MSSP, USART
5 input channels
2
35 Instructions
28-pin PDIP
28-pin SOIC
28-pin SSOP
28-pin QFN
368
256
15
Ports A, B, C, D, E
3
2
MSSP, USART
PSP
8 input channels
2
35 Instructions
40-pin PDIP
44-pin PLCC
44-pin TQFP
44-pin QFN
2003 Microchip Technology Inc.
DS39582B-page 5

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