PIC18F252-I/SP Microchip Technology, PIC18F252-I/SP Datasheet - Page 290

• Manufacturer Part Number: PIC18F252-I/SP
• Description: IC MCU FLASH 16KX16 EE 28DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F252-I/SP

• Program Memory Type: FLASH
• Program Memory Size: 32KB (16K x 16)
• Package / Case: 28-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 23
• 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 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1.5 KB
• Interface Type: MSSP/SPI/I2C/PSP/USART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 23
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 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, ICE2000, ICE4000, DM163022, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5-ch x 10-bit
• Package: 28SPDIP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: PIC18F252-I/SPG; PIC18F252-I/SPG; PIC18F252I/SP

PIC18FXX2
TABLE 22-22: A/D CONVERSION REQUIREMENTS
DS39564B-page 288
130
131
132
135
Note 1: ADRES register may be read on the following T
Param
No.
2: The time for the holding capacitor to acquire the “New” input voltage, when the new input value has not
3: On the next Q4 cycle of the device clock.
4: The time of the A/D clock period is dependent on the device frequency and the T
T
T
T
T
Symbol
AD
CNV
ACQ
SWC
changed by more than 1 LSB from the last sampled voltage. The source impedance (R
is 50 . See Section 17.0 for more information on acquisition time consideration.
A/D clock period
Conversion time
(not including acquisition time) (Note 1)
Acquisition time (Note 2)
Switching Time from convert
Characteristic
PIC18FXXX
PIC18FXXX
sample
CY
cycle.
Min
1.6
2.0
10
11
—
5
(Note 3)
20
Max
6.0
12
—
—
(4)
Units
T
AD
s
s
s
s
T
A/D RC mode
V
V
2002 Microchip Technology Inc.
OSC
REF
REF
AD
clock divider.
= V
= V
S
based
) on the input channels
Conditions
DD
DD
= 5.0V
= 2.5V