PIC16F872-I/SP Microchip Technology, PIC16F872-I/SP Datasheet - Page 454
PIC16F872-I/SP
Manufacturer Part Number
PIC16F872-I/SP
Description
IC MCU FLASH 2KX14 EE 28DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16C770-ISO.pdf
(8 pages)
4.PIC16F872-ISO.pdf
(168 pages)
5.PIC16F872-ISO.pdf
(5 pages)
6.PIC16F872-ISO.pdf
(6 pages)
7.PIC16F872-ISO.pdf
(168 pages)
Specifications of PIC16F872-I/SP
Program Memory Type
FLASH
Program Memory Size
3.5KB (2K x 14)
Package / Case
28-DIP (0.300", 7.62mm)
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Eeprom Size
64 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
I2C/SPI/SSP
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
22
Number Of Timers
3
Operating Supply Voltage
4 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, ICE2000, DM163022
Minimum Operating Temperature
- 40 C
On-chip Adc
5-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
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- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16C770-ISO PDF datasheet #3
- PIC16F872-ISO PDF datasheet #4
- PIC16F872-ISO PDF datasheet #5
- PIC16F872-ISO PDF datasheet #6
- PIC16F872-ISO PDF datasheet #7
- Current page: 454 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
24.4
24.4.1
24.4.2
DS31024A-page 24-12
REFOFF (SLPCON<5>)
Bandgap Voltage Reference
Slope Reference Voltage Divider
SREFLO
K
Other Analog Modules
REF
Reference
Bandgap
=
~
Additional analog modules for mixed signal applications are required. These include:
• bandgap voltage reference
• slope reference voltage divider
The bandgap reference circuit is used to generate a 1.2V nominal stable voltage reference for
the Slope A/D, the low-voltage detector, and the slope reference divider. The bandgap reference
voltage is available on the analog MUX. To enable the bandgap reference REFOFF (SLP-
CON<5>) must be cleared. The bandgap reference must be enabled for any slope A/D conver-
sion.
The bandgap reference calibration factor is stored in the calibration space EPROM.
The slope reference voltage divider circuit, consisting of a buffer amplifier and resistor divider, is
connected to the internal bandgap reference producing two other voltage references called
SREFHI and SREFLO (see
1.2V, and SREFLO is nominally 0.13V. These reference voltages are available on two of the ana-
log multiplexer channels. The Slope A/D module and firmware can measure the SREFHI and
SREFLO voltages, and in conjunction with the K
ADC's offset and slope errors.
See AN624 for further details.
Figure 24-3: Slope Reference Divider
SREFHI
SREFHI - SREFLO
9
SREFLO
V
REF
ADOFF (SLPCON<0>)
Figure
+
_
24-3). SREFHI is nominally the same as the bandgap voltage,
REF
and K
BG
calibration data correct for the
1997 Microchip Technology Inc.
SREFHI
SREFLO
To Slope A/D
MUX
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