PIC16F636-I/ST Microchip Technology, PIC16F636-I/ST Datasheet - Page 43

• Manufacturer Part Number: PIC16F636-I/ST
• Description: IC MCU FLASH 2KX14 14TSSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F636-I/ST

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 14-TSSOP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, LVD, POR, WDT
• Number Of I /o: 11
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: RS- 232/SPI/USB
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 2
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Package: 14TSSOP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162057 - MPLAB ICD 2 HEADER 14DIP
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

REGISTER 4-3:
REGISTER 4-4:
© 2005 Microchip Technology Inc.
bit 7-6:
bit 5-0:
bit 7-6:
bit 5-0:
PORTA – PORTA REGISTER (ADDRESS: 05h)
TRISA – PORTA TRI-STATE REGISTER (ADDRESS: 85h)
bit 7
Unimplemented: Read as ‘0’
RA<5:0>: PORTA I/O pins
1 = Port pin is > V
0 = Port pin is < V
Legend:
R = Readable bit
- n = Value at POR
bit 7
Unimplemented: Read as ‘0’
TRISA<5:0>: PORTA Tri-State Control bits
1 = PORTA pin configured as an input (tri-stated)
0 = PORTA pin configured as an output
Legend:
R = Readable bit
- n = Value at POR
Note 1: TRISA<3> always reads ‘1’.
U-0
U-0
—
—
2: TRISA<5:4> always reads ‘1’ in XT, HS and LP Oscillator modes.
U-0
U-0
—
—
IH
IL
TRISA5
R/W-x
PIC12F635/PIC16F636/639
RA5
R/W-1
Preliminary
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
(2)
TRISA4
R/W-x
RA4
R/W-1
(1,2)
(2)
TRISA3
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
RA3
R-x
R-1
(1)
TRISA2
R/W-1
R/W-x
RA2
x = Bit is unknown
x = Bit is unknown
TRISA1
R/W-1
R/W-0
RA1
DS41232B-page 41
TRISA0
R/W-0
R/W-1
RA0
bit 0
bit 0