PIC16F636-E/ST Microchip Technology, PIC16F636-E/ST Datasheet - Page 51

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

Specifications of PIC16F636-E/ST

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, LVD, POR, WDT
• Number Of I /o: 11
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 14-TSSOP
• For Use With: AC162057 - MPLAB ICD 2 HEADER 14DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

REGISTER 4-3:
REGISTER 4-4:
© 2007 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-6
bit 5-4
bit 3
bit 2-0
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-6
bit 5-4
bit 3
bit 2-0
Note 1: The weak pull-up/pull-down device is enabled only when the global RAPU bit is enabled, the pin is in Input mode (TRIS
Note 1: The weak pull-up/pull-down direction device is enabled only when the global RAPU bit is enabled, the pin is in Input mode
U-0
U-0
—
—
2: RA3 pull-up is enabled when the pin is configured as MCLR in the Configuration Word register and the device is not in
2: RA3 pull-up is enabled when the pin is configured as MCLR in the Configuration Word register and the device is not in
3: WPUDA5 bit can be written if INTOSC is enabled and T1OSC is disabled; otherwise, the bit can not be written and reads
= 1), the individual WDA bit is enabled (WDA = 1) and the pin is not configured as an analog input or clock function.
Programming mode.
(TRIS = 1), the individual WPUDA bit is enabled (WPUDA = 1) and the pin is not configured as an analog input or clock
function.
Programming mode.
as ‘1’. WPUDA4 bit can be written if not configured as OSC2; otherwise, the bit can not be written and reads as ‘1’
Unimplemented: Read as ‘0’
WDA<5:4>: Pull-up/Pull-down Selection bits
1 = Pull-up selected
0 = Pull-down selected
Unimplemented: Read as ‘0’
WDA<2:0>: Pull-up/Pull-down Selection bits
1 = Pull-up selected
0 = Pull-down selected
Unimplemented: Read as ‘0’
WPUDA<5:4>: Pull-up/Pull-down Direction Selection bits
1 = Pull-up/pull-down enabled
0 = Pull-up/pull-down disabled
Unimplemented: Read as ‘0’
WPUDA<2:0>: Pull-up/Pull-down Direction Selection bits
1 = Pull-up/pull-down enabled
0 = Pull-up/pull-down disabled
U-0
U-0
—
—
WDA: WEAK PULL-UP/PULL-DOWN DIRECTION REGISTER
WPUDA: WEAK PULL-UP/PULL-DOWN ENABLE REGISTER
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
WPUDA5
WDA5
R/W-1
R/W-1
(3)
WPUDA4
R/W-1
WDA4
R/W-1
PIC12F635/PIC16F636/639
(3)
U = Unimplemented bit, read as ‘0’
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
‘0’ = Bit is cleared
U-0
U-0
—
—
(3)
WPUDA2
R/W-1
WDA2
R/W-1
x = Bit is unknown
x = Bit is unknown
WPUDA1
WDA1
R/W-1
R/W-1
DS41232D-page 49
WPUDA0
WDA0
R/W-1
R/W-1
bit 0
bit 0