PIC18F4431-E/PT Microchip Technology, PIC18F4431-E/PT Datasheet - Page 260

• Manufacturer Part Number: PIC18F4431-E/PT
• Description: IC MCU FLASH 8KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/PT

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 9x10b
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
20.9.1
The ADRESH:ADRESL register pair is the location
where the 10-bit A/D result is loaded at the completion
of the A/D conversion. This register pair is 16-bits wide.
The A/D module gives the flexibility to left- or right-
justify the 10-bit result in the 16-bit result register. The
FIGURE 20-5:
EQUATION 20-3:
DS39616B-page 258
Simultaneous Mode:
Sequential Mode:
T = T
T = (T
ACQ
ACQ
A/D RESULT REGISTER
)
+ (T
A
7
+ (T
CON
0000 00
ADRESH
CON
)
A
A/D RESULT JUSTIFICATION
CONVERSION TIME FOR MULTICHANNEL MODES
)
+ (T
Right Justified
A
+ [(T
2 1 0 7
CON
ADFM = 1
ACQ
)
B
+ T
)
B
10-bit Result
ADRESL
- 12T
ACQ
+ (T
AD
] + (T
CON
0
CON
)
C
Preliminary
+ (T
10-bit Result
)
B
+ [(T
CON
)
ACQ
D
A/D Format Select bit (ADFM) controls this justification.
Figure 20-5 shows the operation of the A/D result
justification. The extra bits are loaded with ‘0’s. When
an A/D result will not overwrite these locations (A/D
disable), these registers may be used as two general
purpose 8-bit registers.
)
C
- 12T
7
AD
ADRESH
] + (T
10-bit Result
CON
ADFM = 0
Left Justified
)
C
0 7 6 5
+ [(T
 2003 Microchip Technology Inc.
ACQ
ADRESL
0000 00
)
D
- 12T
AD
0
] + (T
CON
)
D