PIC16F874A-I/P Microchip Technology, PIC16F874A-I/P Datasheet - Page 8

• Manufacturer Part Number: PIC16F874A-I/P
• Description: IC MCU FLASH 4KX14 EE 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F874A-I/P

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Controller Family/series: PIC16F
• No. Of I/o's: 33
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 192Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 192 B
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163022, DV164120
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Data Rom Size: 128 B
• Height: 3.81 mm
• Length: 52.26 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4 V
• Width: 13.84 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 444-1001 - DEMO BOARD FOR PICMICRO MCU
• Lead Free Status / Rohs Status: Details
• Other names: PIC16F874AI/P

PIC16F87XA
FIGURE 1-1:
DS39582B-page 6
Note 1: Higher order bits are from the Status register.
Data EEPROM
OSC1/CLKI
OSC2/CLKO
Timer0
PIC16F873A
PIC16F876A
Program
Device
Bus
Instruction reg
Generation
Instruction
Decode &
Program
14
Memory
Control
PIC16F873A/876A BLOCK DIAGRAM
Timing
Flash
CCP1,2
Timer1
8
13
MCLR
Direct Addr
Start-up Timer
Programming
Program Counter
Low-Voltage
Program Flash
Brown-out
8 Level Stack
Watchdog
Debugger
Power-up
Power-on
Oscillator
In-Circuit
4K words
8K words
Timer
Reset
Timer
Reset
Synchronous
(13-bit)
Serial Port
Timer2
V
DD
, V
7
SS
RAM Addr
8
3
(1)
Data Bus
Addr MUX
Registers
W reg
ALU
10-bit A/D
RAM
USART
File
FSR reg
Status reg
9
MUX
8
Data Memory
192 Bytes
368 Bytes
Indirect
Addr
8
Comparator
PORTC
PORTA
PORTB
 2003 Microchip Technology Inc.
Data EEPROM
128 Bytes
256 Bytes
Reference
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI/C1OUT
RA5/AN4/SS/C2OUT
RB0/INT
RB1
RB2
RB3/PGM
RB4
RB5
RB6/PGC
RB7/PGD
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
Voltage
REF
REF
-/CV
+
REF