PIC16F726-I/SP Microchip Technology Inc., PIC16F726-I/SP Datasheet - Page 129

• Manufacturer Part Number: PIC16F726-I/SP
• Description: 28 PIN, 14 KB FLASH, 1.8V-5.5V, 16 MHZ INT. OSC.
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F726-I/SP

• A/d Inputs: 11-Channel, 8-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 0 Bytes
• Frequency: 20 MHz
• Input Output: 25
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 14K Bytes
• Ram Size: 368 Bytes
• Resistance, Drain To Source On: Bytes
• Serial Interface: I2C, SPI, AUSART
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 1.8-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

14.0
The capacitive sensing module allows for an interaction
with an end user without a mechanical interface. In a
typical application, the capacitive sensing module is
attached to a pad on a printed circuit board (PCB), which
is electrically isolated from the end user. When the end
user places their finger over the PCB pad, a capacitive
load is added, causing a frequency shift in the capacitive
FIGURE 14-1:
© 2008 Microchip Technology Inc.
CPS10
CPS11
CPS12
CPS13
CPS14
CPS15
CPS8
CPS9
Note 1: Channels CPS<15:8> are implemented on PIC16F724/727/PIC16LF724/727 only.
CPS0
CPS1
CPS2
CPS3
CPS4
CPS5
CPS6
CPS7
CAPACITIVE SENSING
MODULE
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
2: CPSCH3 is not implemented on PIC16F722/723/726/PIC16LF722/723/726.
3: If CPSON = 0, disabling capacitive sensing, no channel is selected.
LP WDT
OSC
Watchdog Timer Module
CAPACITIVE SENSING BLOCK DIAGRAM
CPSON
CPSCH<3:0>
PS<2:0>
(3)
Capacitive
Oscillator
CPSOSC
Sensing
WDT
Scaler
(2)
CPSON
CPSRNG<1:0>
Overflow
CPSOUT
T0CKI
CPSCLK
Preliminary
WDT
Event
T0XCS
PIC16F72X/PIC16LF72X
0
1
sensing module. The capacitive sensing module
requires software and at least one timer resource to
determine the change in frequency. Key features of this
module include:
• Analog MUX for monitoring multiple inputs
• Capacitive sensing oscillator
• Multiple timer resources
• Software control
• Operation during Sleep
F
T1GSEL<1:0>
OSC
T1CS<1:0>
F
OSC
TMR2
/4
T1OSC/
F
T1G
T1CKI
OSC
/4
0
1
Overflow
T0CS
Timer0 Module
Timer1 Module
TMR0
EN
Control Logic
Timer1 Gate
Timer2 Module
TMR1H:TMR1L
Postscaler
Overflow
41341B-page 127
T0IF
Set
Set
TMR2IF