PIC16F819-I/SO Microchip Technology Inc., PIC16F819-I/SO Datasheet - Page 42

• Manufacturer Part Number: PIC16F819-I/SO
• Description: 18 PIN, 3.5 KB FLASH, 256 RAM, 16 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F819-I/SO

• A/d Inputs: 5-Channel, 10-Bit
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 16
• Interface: I2C/SPI
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 18-pin SOIC
• Programmable Memory: 3.5K Bytes
• Ram Size: 256 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 5-1:
FIGURE 5-2:
DS39598E-page 40
Data
Bus
WR
PORTA
WR
TRISA
RD PORTA
To A/D Module V
To A/D Module Channel Input
Bus
WR
PORTA
WR
TRISA
RD PORTA
To A/D Module Channel Input
Data
TRIS Latch
TRIS Latch
D
Data Latch
D
D
Data Latch
D
CK
CK
CK
CK
RD TRISA
RD TRISA
REF
Q
Q
Q
Q
Q
Q
Q
Q
+ Input
BLOCK DIAGRAM OF
RA0/AN0:RA1/AN1 PINS
BLOCK DIAGRAM OF
RA3/AN3/V
Input Mode
Input Mode
Q
Q
Analog
Analog
Input Buffer
Input Buffer
EN
EN
REF
V
V
V
V
P
N
P
N
TTL
D
D
TTL
DD
DD
SS
SS
+ PIN
V
V
V
V
DD
DD
SS
SS
I/O pin
I/O pin
FIGURE 5-3:
FIGURE 5-4:
Data
Bus
WR
PORTA
WR
TRISA
RD PORTA
TMR0 Clock Input
To A/D Module Channel Input
Data
Bus
WR
PORTA
WR
TRISA
RD PORTA
To A/D Module V
To A/D Module Channel Input
TRIS Latch
TRIS Latch
D
Data Latch
D
D
Data Latch
D
CK
CK
CK
CK
RD TRISA
RD TRISA
REF
Q
Q
Q
Q
Q
Q
Q
Q
- Input
BLOCK DIAGRAM OF
RA2/AN2/V
BLOCK DIAGRAM OF
RA4/AN4/T0CKI PIN
 2004 Microchip Technology Inc.
Input Mode
Input Mode
Schmitt Trigger
Q
Q
Analog
Analog
Input Buffer
Input Buffer
REF
EN
EN
V
V
V
V
P
N
P
N
D
TTL
D
DD
DD
SS
SS
- PIN
V
V
V
V
DD
DD
SS
SS
I/O pin
I/O pin