PIC18F2525-I/SO Microchip Technology, PIC18F2525-I/SO Datasheet - Page 239

• Manufacturer Part Number: PIC18F2525-I/SO
• Description: IC MCU FLASH 24KX16 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2525-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 48KB (24K x 16)
• Package / Case: 28-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 25
• Eeprom Size: 1K x 8
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3986 B
• Interface Type: SPI, I2C, EUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 25
• Number Of Timers: 1 x 8
• Operating Supply Voltage: 4.2 V to 5.5 V
• 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, ICE2000, ICE4000, DM163022, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Package: 28SOIC W
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MILI3DB18F4620 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

20.9
A simplified circuit for an analog input is shown in
Figure 20-4. Since the analog pins are connected to a
digital output, they have reverse biased diodes to V
and V
V
FIGURE 20-4:
TABLE 20-1:
© 2008 Microchip Technology Inc.
CMCON
CVRCON
INTCON
PIR2
PIE2
IPR2
PORTA
LATA
TRISA
Legend: — = unimplemented, read as ‘0’. Shaded cells are unused by the comparator module.
Note 1:
SS
Name
and V
SS
. The analog input, therefore, must be between
Analog Input Connection
Considerations
DD
PORTA<7:6> and their direction and latch bits are individually configured as port pins based on various
primary oscillator modes. When disabled, these bits read as ‘0’.
TRISA7
. If the input voltage deviates from this
GIE/GIEH PEIE/GIEL TMR0IE
VA
LATA7
OSCFIE
OSCFIP
OSCFIF
CVREN
C2OUT
RA7
Bit 7
REGISTERS ASSOCIATED WITH COMPARATOR MODULE
R
(1)
S
Legend:
(1)
(1)
< 10k
COMPARATOR ANALOG INPUT MODEL
TRISA6
LATA6
A
CVROE
C1OUT
RA6
CMIE
CMIP
CMIF
IN
Bit 6
C
V
I
R
R
VA
(1)
LEAKAGE
C
5 pF
T
(1)
PIN
IC
S
(1)
PIN
PORTA Data Latch Register (Read and Write to Data Latch)
PORTA Data Direction Control Register
C2INV
CVRR
Bit 5
RA5
= Input Capacitance
= Threshold Voltage
= Leakage Current at the pin due to various junctions
= Interconnect Resistance
= Source Impedance
= Analog Voltage
—
—
—
PIC18F2525/2620/4525/4620
CVRSS
INT0IE
C1INV
V
DD
EEIF
EEIE
EEIP
Bit 4
RA4
DD
V
V
T
T
= 0.6V
= 0.6V
BCLIE
BCLIP
BCLIF
CVR3
range by more than 0.6V in either direction, one of the
diodes is forward biased and a latch-up condition may
occur. A maximum source impedance of 10 kΩ is
recommended for the analog sources. Any external
component connected to an analog input pin, such as
a capacitor or a Zener diode, should have very little
leakage current.
RBIE
Bit 3
RA3
CIS
I
±500 nA
V
LEAKAGE
TMR0IF
HLVDIF
HLVDIE
HLVDIP
SS
CVR2
Bit 2
CM2
RA2
R
IC
TMR3IE
TMR3IP
TMR3IF
INT0IF
CVR1
Bit 1
CM1
RA1
CCP2IE
CCP2IP
CCP2IF
Comparator
Input
CVR0
RBIF
Bit 0
CM0
RA0
DS39626E-page 237
on page
Values
Reset
51
51
52
52
52
52
52
52
52