PIC18F85J90-I/PT Microchip Technology, PIC18F85J90-I/PT Datasheet - Page 45

• Manufacturer Part Number: PIC18F85J90-I/PT
• Description: IC PIC MCU FLASH 16KX16 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F85J90-I/PT

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 67
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 67
• Ram Memory Size: 2KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• No. Of Pwm Channels: 2
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: AUSART, EUSART, I2C, SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 67
• Number Of Timers: 4
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DV164136, DM163030
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Package: 80TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 2.5|3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162079 - HEADER MPLAB ICD2 18F85J90 64/80AC164328 - MODULE SKT FOR 80TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

© 2009 Microchip Technology Inc.
5.3.9
The following equations represent the proper method for calculating the calibration and
correction factors for the RMS current and RMS voltage. The PC calibration software
handles these calculations automatically.
Typically, the V
For RMS Offset, the following equations apply:
EQUATION 5-19:
EQUATION 5-20:
EQUATION 5-21:
EQUATION 5-22:
EQUATION 5-23:
EQUATION 5-24:
EQUATION 5-25:
Note:
Equations for RMS Calibration
Convert to 16-bit signed integer for compatibility with PIC18F85J90 register
and firmware calculations
VR1
VR2
IR2
IR1
MIN
PHA_I_RMS_OFF
and I
=
=
=
=
PHA_I_RMS_RAW2 @ I
PHA_V_RMS_RAW2 @ I
PHA_I_RMS_RAW2 @ I
PHA_V_RMS_RAW2 @ I
MIN
voltages and currents will be 1/10 of the V
V
I
G
G
=
=
=
I
-------------------- -
I
V
---------------------- -
V
B
B
B
B
@ C1
@ C4
⎛
⎝
----------------------------------------------- -
@ C1
@ C4
--------------------------- -
IG IG 1
IR1 IR2
•
B
B
–
B
B
65536
, Configuration C1
, Configuration C4
, Configuration C1
, Configuration C4
Meter Calibration
–
⎞
⎠
–
IR
2
DS51884A-page 45
B
and I
B
values.