PIC16F818-I/P Microchip Technology Inc., PIC16F818-I/P Datasheet - Page 54

• Manufacturer Part Number: PIC16F818-I/P
• Description: 18 PIN, 1.75 KB FLASH, 128 RAM, 16 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F818-I/P

• A/d Inputs: 5-Channel, 10-Bit
• Cpu Speed: 5 MIPS
• Eeprom Memory: 128 Bytes
• Input Output: 16
• Interface: I2C/SPI
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 18-pin PDIP
• Programmable Memory: 1.75K Bytes
• Ram Size: 128 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

PIC16F818/819
FIGURE 5-15:
DS39598E-page 52
Note 1: I/O pins have diode protection to V
2: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.
Port/Program Mode/ICD
PGD
RBPU
Data Bus
WR
PORTB
WR
TRISB
T1OSCEN
PGD DRVEN
Set RBIF
From other
RB7:RB4 pins
PGD
To T1OSI Input
BLOCK DIAGRAM OF RB7 PIN
(2)
RD PORTB
RD TRISB
TRIS Latch
Data Latch
D
D
CK
CK
Q
Q
DD
1
0
and V
SS
.
Input Mode
T1OSCEN
Input Buffer
1
0
Analog
Q
Q
Latch
EN
EN
TTL
D
D
RD PORTB
V
P
DD
 2004 Microchip Technology Inc.
Weak
Pull-up
I/O pin
Q1
Q3
(1)