PIC18F2523-E/SP Microchip Technology, PIC18F2523-E/SP Datasheet - Page 28

• Manufacturer Part Number: PIC18F2523-E/SP
• Description: 32KB, Flash, 1536bytes-RAM, 25I/O, 8-bit Family,nanoWatt 28 SPDIP .300in TUBE
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2523-E/SP

• 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
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1.5 KB
• Interface Type: EUSART, I2C, MSSP, SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 25
• Number Of Timers: 4
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM163022, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 10 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM163025 - PIC DEM FULL SPEED USB DEMO BRD
• Lead Free Status / Rohs Status: Details

PIC18F2423/2523/4423/4523
The analog reference voltage is software selectable to
either the device’s positive and negative supply voltage
(V
V
The A/D Converter has a unique feature of being able
to operate while the device is in Sleep mode. To oper-
ate in Sleep, the A/D conversion clock must be derived
from the A/D’s internal RC oscillator.
The output of the sample and hold is the input into the
converter, which generates the result via successive
approximation.
FIGURE 2-1:
DS39755C-page 28
REF
DD
+ and RA2/AN2/V
and V
Note 1:
SS
2:
), or the voltage level on the RA3/AN3/
Converter
12-Bit
A/D
Channels, AN5 through AN7, are not available on PIC18F2423/2523 devices.
I/O pins have diode protection to V
Reference
Voltage
A/D BLOCK DIAGRAM
REF
-/CV
REF
pins.
V
V
REF
REF
+
-
(Input Voltage)
VCFG<1:0>
V
AIN
DD
and V
X
X
1
0
0
1
X
X
V
SS
DD
A device Reset forces all registers to their Reset state.
This forces the A/D module to be turned off and any
conversion in progress is aborted.
Each port pin associated with the A/D Converter can be
configured as an analog input or as a digital I/O. The
ADRESH and ADRESL registers contain the result of
the A/D conversion. When the A/D conversion is com-
plete, the result is loaded into the ADRESH:ADRESL
register pair, the GO/DONE bit (ADCON0<1>) is cleared
and A/D Interrupt Flag bit, ADIF, is set.
The block diagram of the A/D module is shown in
Figure 2-1.
.
(2)
V
SS (2)
CHS<3:0>
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
© 2009 Microchip Technology Inc.
AN12
AN11
AN10
AN9
AN8
AN7
AN6
AN5
AN4
AN3
AN2
AN1
AN0
(1)
(1)
(1)