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Water Meters
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Block Diagram
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Explore the blocks in the diagram above to learn more…
The list below shows a selection of most commonly used PIC microcontrollers for water metering applications. The most recently introduced devices and devices with integrated LCD display are featured at the top.
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Recommended 8-bit PIC® Microcontrollers
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Device
|
Flash
Program
(bytes)
|
Data Memory
|
I/O
|
10-bit
ADC
|
Capture
Compare
PWM
|
MSSP
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Timers
8/16 bit
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LCD
Segments
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RAM
(bytes)
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EEPROM
(bytes)
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SPI™
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MI²C
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PIC18F85J90
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32,768
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2048
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-
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67
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12
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2
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1
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1
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1/3
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4x48(192)
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PIC18F65J90
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32,768
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2048
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-
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51
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12
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2
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1
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1
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1/3
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4x33(132)
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PIC16F946
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14,336
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336
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256
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53
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8
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2
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1
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-
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2/1
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4x42(168)
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PIC16F917
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14,336
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352
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256
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36
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8
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1
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1
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-
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2/1
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4x24(96)
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PIC16F916
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14,336
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352
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256
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25
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5
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2
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1
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-
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2/1
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4x15(60)
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PIC16F877A
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14,336
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368
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256
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33
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8
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2
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1
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-
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1/2
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-
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PIC16F876A
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14,336
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368
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256
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22
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5
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2
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1
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-
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2/1
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-
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PIC16F77
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14,336
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368
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-
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33
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8x8 bits
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2
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1
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-
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2/1
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-
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PIC16F76
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14,336
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368
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-
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22
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5x8 bits
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2
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1
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-
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2/1
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-
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PIC16F72
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3,584
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128
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-
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22
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5x8 bits
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1
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1
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-
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2/1
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-
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PIC16F690
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8,192
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256
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256
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18
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12
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1
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1
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1
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2/1
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-
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PIC16F648A
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7,168
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256
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256
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16
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-
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1
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-
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-
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2/1
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-
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Recommended 16-bit PIC® Microcontrollers
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Device
|
Flash
Program
(bytes)
|
Data Memory
|
I/O
|
12-bit
ADC
|
Capture
Compare
PWM
|
MSSP
|
Timers
8/16 bit
|
LCD
Segments
|
RAM
(bytes)
|
EEPROM
(bytes)
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SPI™
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MI²C
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PIC24FJ128GA010
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128K
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8192
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-
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86
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16
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5
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2
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1
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0/5
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-
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PIC24FJ64GA004
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64K
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8192
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-
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35
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10
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5
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2
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1
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0/5
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-
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Recommended Analog Products:
LCD Display Controller: AY0438
Op Amps: MCP6142 MCP602 MCP6022
Digital Potentiometers: MCP4021
Voltage Supervisors: MCP131 MCP100
Serial EEPROMs: Product Portfolio
List of relevant application notes:
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Application Notes
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Category
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Document
Number
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Title
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Meter
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AN1013
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Gas and Water Metering with the PIC16F91X Family of Devices
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Communications
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AN979
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Interfacing an I2C™ Serial EEPROM to a PIC18 Device
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AN965
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Microchip Stack for the Zigbee™ Protocol
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Display
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AN658
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LCD Fundamentals Using PIC16C92X MCUs
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AN587
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Interfacing PICmicro® Microcontrollers to an LCD Module
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AN563
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Using PIC16C5X Microcontrollers as LCD Drivers
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AN234
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Hardware Techniques for PICmicro®
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TB062
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High Power IR LED Driver Using the PIC16C781/782
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Miscellaneous
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AN851
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A Flash Bootloader for PIC16 and PIC18 Devices
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AN606
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Low-Power Design Using PICmicro® Microcontrollers
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Timekeeping
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AN649
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Yet Another Clock Featuring the PIC16C924
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AN615
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Clock Design Using Low-Power Cost Techniques
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AN582
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Low-Power Real-Time Clock
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TB028
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Technique to Calculate Day of Week
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Security
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AN953
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Data Encryption Routines for PIC18 Microcontrollers
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AN821
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Advanced Encryption Standard Using the PIC16XXX
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AN583
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Implementation of the Data Encryption Standard Using PIC17C42
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