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PIC16F87XATI/SP Datasheet - Page 5

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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:
• 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
TABLE 1-1:
PIC16F87XA DEVICE FEATURES
Key Features
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
 2001-2013 Microchip Technology Inc.
The available features are summarized in Table 1-1.
Block diagrams of the PIC16F873A/876A
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 PIC
Range Reference Manual (DS33023), which may be
obtained from your local Microchip Sales Representative
or downloaded from the Microchip web site. The Refer-
ence Manual should be considered a complementary
document to this data sheet and is highly recommended
reading for a better understanding of the device architec-
ture and operation of the peripheral modules.
PIC16F873A
PIC16F874A
DC – 20 MHz
DC – 20 MHz
POR, BOR
POR, BOR
(PWRT, OST)
(PWRT, OST)
4K
4K
192
192
128
128
14
15
Ports A, B, C
Ports A, B, C, D, E
3
3
2
2
MSSP, USART
MSSP, USART
PSP
5 input channels
8 input channels
2
2
35 Instructions
35 Instructions
28-pin PDIP
40-pin PDIP
28-pin SOIC
44-pin PLCC
28-pin SSOP
44-pin TQFP
28-pin QFN
44-pin QFN
PIC16F87XA
and
®
Mid-
PIC16F876A
PIC16F877A
DC – 20 MHz
DC – 20 MHz
POR, BOR
POR, BOR
(PWRT, OST)
(PWRT, OST)
8K
8K
368
368
256
256
14
15
Ports A, B, C
Ports A, B, C, D, E
3
3
2
2
MSSP, USART
MSSP, USART
PSP
5 input channels
8 input channels
2
2
35 Instructions
35 Instructions
28-pin PDIP
40-pin PDIP
28-pin SOIC
44-pin PLCC
28-pin SSOP
44-pin TQFP
28-pin QFN
44-pin QFN
DS39582C-page 5

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