PIC16F872-E/SS Microchip Technology, PIC16F872-E/SS Datasheet - Page 423

• Manufacturer Part Number: PIC16F872-E/SS
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,28PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F872-E/SS

• Rohs Compliant: YES
• 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
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• 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 ~ 125°C
• Package / Case: 28-SSOP
• Package: 28SSOP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 22
• Interface Type: I2C/SPI
• On-chip Adc: 5-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M
1997 Microchip Technology Inc.
HIGHLIGHTS
This section of the manual contains the following major topics:
23.1 Introduction ..................................................................................................................23-2
23.2 Control Register ...........................................................................................................23-3
23.3 Operation .....................................................................................................................23-5
23.4 A/D Acquisition Requirements .....................................................................................23-6
23.5 Selecting the A/D Conversion Clock ............................................................................23-8
23.6 Configuring Analog Port Pins.......................................................................................23-9
23.7 A/D Conversions ........................................................................................................23-10
23.8 Operation During Sleep .............................................................................................23-14
23.9 Effects of a Reset.......................................................................................................23-14
23.10 A/D Accuracy/Error ....................................................................................................23-15
23.11 Connection Considerations ........................................................................................23-16
23.12 Transfer Function .......................................................................................................23-16
23.13 Initialization ................................................................................................................23-17
23.14 Design Tips ................................................................................................................23-18
23.15 Related Application Notes..........................................................................................23-19
23.16 Revision History .........................................................................................................23-20
Note 1: At present NO released mid-range MCU devices are available with this module.
Section 23. 10-bit A/D Converter
Devices are planned, but there is no schedule for availability. Please refer to Micro-
chip’s Web site or BBS for release of Product Briefs which detail the features of
devices.
If your current design requires a 10-bit A/D, please look at the PIC17C756 which has
a 12-channel 10-bit A/D. This A/D has characteristics which are identical to this mod-
ule’s description.
Preliminary
DS31023A page 23-1
23