PIC16F636-I/P Microchip Technology, PIC16F636-I/P Datasheet - Page 53
![IC MCU FLASH 2KX14 14DIP](/photos/6/59/65935/150-14-dip_sml.jpg)
PIC16F636-I/P
Manufacturer Part Number
PIC16F636-I/P
Description
IC MCU FLASH 2KX14 14DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC12F635-ISN.pdf
(234 pages)
3.PIC16F636-ISL.pdf
(8 pages)
4.PIC16F636-ISL.pdf
(4 pages)
5.PIC16F636-IST.pdf
(196 pages)
Specifications of PIC16F636-I/P
Program Memory Type
FLASH
Program Memory Size
3.5KB (2K x 14)
Package / Case
14-DIP (0.300", 7.62mm)
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
Through Hole
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164039 - MODULE SKT PROMATE II 20DIP/SOICAC162057 - MPLAB ICD 2 HEADER 14DIPACICE0207 - MPLABICE 14P 300 MIL ADAPTER
Eeprom Size
-
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC12F635-ISN PDF datasheet #2
- PIC16F636-ISL PDF datasheet #3
- PIC16F636-ISL PDF datasheet #4
- PIC16F636-IST PDF datasheet #5
- Current page: 53 of 234
- Download datasheet (4Mb)
4.2.3
The Ultra Low-Power Wake-up (ULPWU) on RA0 allows
a slow falling voltage to generate an interrupt-on-change
on RA0 without excess current consumption. The mode
is selected by setting the ULPWUE bit of the PCON
register. This enables a small current sink which can be
used to discharge a capacitor on RA0.
To use this feature, the RA0 pin is configured to output
‘1’ to charge the capacitor, interrupt-on-change for RA0
is enabled and RA0 is configured as an input. The
ULPWUE bit is set to begin the discharge and a SLEEP
instruction is performed. When the voltage on RA0 drops
below V
the device to wake-up. Depending on the state of the
GIE bit of the INTCON register, the device will either
jump to the interrupt vector (0004h) or execute the next
instruction when the interrupt event occurs. See
Section 4.2.2
Section 12.9.3
information.
This feature provides a low-power technique for
periodically waking up the device from Sleep. The
time-out is dependent on the discharge time of the RC
circuit on RA0. See Example 4-2 for initializing the Ultra
Low Power Wake-up module.
The series resistor provides overcurrent protection for the
RA0 pin and can allow for software calibration of the
time-out (see Figure 4-1). A timer can be used to measure
the charge time and discharge time of the capacitor. The
charge time can then be adjusted to provide the desired
interrupt delay. This technique will compensate for the
affects of temperature, voltage and component accuracy.
The Ultra Low-Power Wake-up peripheral can also be
configured as a simple Programmable Low-Voltage
Detect or temperature sensor.
© 2007 Microchip Technology Inc.
Note:
IL
, an interrupt will be generated which will cause
ULTRA LOW-POWER WAKE-UP
For more information, refer to the
Application Note AN879, “Using the
Microchip Ultra Low-Power Wake-up
Module” (DS00879).
“PORTA
“Interrupt-on-Change”
Interrupt”
for
more
PIC12F635/PIC16F636/639
and
EXAMPLE 4-2:
BANKSEL PORTA
BSF
MOVLW
MOVWF
BANKSEL TRISA
BCF
CALL
BSF
BSF
BSF
MOVLW
MOVWF
SLEEP
NOP
PORTA,0
H’7’
CMCON0
TRISA,0
CapDelay
PCON,ULPWUE ;Enable ULP Wake-up
IOCA,0
TRISA,0
B’10001000’ ;Enable interrupt
INTCON
ULTRA LOW-POWER
WAKE-UP INITIALIZATION
;
;Set RA0 data latch
;Turn off
; comparators
;
;Output high to
; charge capacitor
;Select RA0 IOC
;RA0 to input
; and clear flag
;Wait for IOC
;
DS41232D-page 51
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