PIC16F74-I/L Microchip Technology Inc., PIC16F74-I/L Datasheet - Page 12

• Manufacturer Part Number: PIC16F74-I/L
• Description: 44 PIN, 7 KB FLASH, 192 RAM, 33 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F74-I/L

• A/d Inputs: 8-Channel, 8-Bit
• Cpu Speed: 5 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 33
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin PLCC
• Programmable Memory: 7K Bytes
• Ram Size: 192 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F7X
TABLE 1-3:
DS30325B-page 10
OSC1/CLKI
OSC2/CLKO
MCLR/V
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
RA4/T0CKI
RA5/SS/AN4
Legend:
Note 1: This buffer is a Schmitt Trigger input when configured as an external interrupt.
OSC1
CLKI
OSC2
CLKO
MCLR
V
RA0
AN0
RA1
AN1
RA2
AN2
RA3
AN3
V
RA4
T0CKI
RA5
SS
AN4
Pin Name
PP
REF
2:
3:
4:
PP
This buffer is a Schmitt Trigger input when used in Serial Programming mode.
This buffer is a Schmitt Trigger input when configured as general purpose I/O and a TTL input when used in the Parallel
Slave Port mode (for interfacing to a microprocessor bus).
This buffer is a Schmitt Trigger input when configured in RC Oscillator mode and a CMOS input otherwise.
REF
I = input
— = Not used
PIC16F74 AND PIC16F77 PINOUT DESCRIPTION
Pin#
DIP
13
14
1
2
3
4
5
6
7
PLCC
Pin#
O = output
TTL = TTL input
14
15
2
3
4
5
6
7
8
Pin#
QFP
30
31
18
19
20
21
22
23
24
I/O/P
Type
I/O
I/O
I/O
I/O
I/O
I/O
O
O
P
I
I
I
I
I
I
I
I
I
I
I
I/O = input/output
ST = Schmitt Trigger input
ST/CMOS
Buffer
Type
TTL
TTL
TTL
TTL
TTL
ST
ST
—
(4)
Oscillator crystal or external clock input.
Oscillator crystal or clock output.
PORTA is a bi-directional I/O port.
Master Clear (input) or programming voltage (output).
ST buffer when configured in RC mode. Otherwise
CMOS.
function OSC1 (see OSC1/CLKI, OSC2/CLKO pins).
Oscillator crystal input or external clock source input.
External clock source input. Always associated with pin
Oscillator crystal output.
Connects to crystal or resonator in Crystal Oscillator
mode.
In RC mode, OSC2 pin outputs CLKO, which has 1/4
the frequency of OSC1 and denotes the instruction
cycle rate.
Master Clear (Reset) input. This pin is an active low
RESET to the device.
Programming voltage input.
Digital I/O.
Analog input 0.
Digital I/O.
Analog input 1.
Digital I/O.
Analog input 2.
Digital I/O.
Analog input 3.
A/D reference voltage input.
Digital I/O – Open drain when configured as output.
Timer0 external clock input.
Digital I/O.
SPI slave select input.
Analog input 4.
P = power
Description
 2002 Microchip Technology Inc.