PIC18LF252-I/SOG Microchip Technology, PIC18LF252-I/SOG Datasheet - Page 188
![IC MCU FLASH 16KX16 28SOIC](/photos/6/59/65909/150-28-soic_sml.jpg)
PIC18LF252-I/SOG
Manufacturer Part Number
PIC18LF252-I/SOG
Description
IC MCU FLASH 16KX16 28SOIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F242-ISO.pdf
(332 pages)
3.PIC18F242-ISO.pdf
(14 pages)
4.PIC18F242-ISO.pdf
(16 pages)
5.PIC18F242-ISO.pdf
(16 pages)
6.PIC18F242-ISO.pdf
(14 pages)
7.PIC18LF242-ISO.pdf
(36 pages)
Specifications of PIC18LF252-I/SOG
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
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)
2 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC18F242-ISO PDF datasheet #2
- PIC18F242-ISO PDF datasheet #3
- PIC18F242-ISO PDF datasheet #4
- PIC18F242-ISO PDF datasheet #5
- PIC18F242-ISO PDF datasheet #6
- PIC18LF242-ISO PDF datasheet #7
- Current page: 188 of 332
- Download datasheet (6Mb)
PIC18FXX2
17.2
The A/D conversion time per bit is defined as T
A/D conversion requires 12 T
The source of the A/D conversion clock is software
selectable. The seven possible options for T
• 2 T
• 4 T
• 8 T
• 16 T
• 32 T
• 64 T
• Internal A/D module RC oscillator (2-6 s)
For correct A/D conversions, the A/D conversion clock
(T
of 1.6 s.
Table 17-1 shows the resultant T
the device operating frequencies and the A/D clock
source selected.
TABLE 17-1:
DS39564C-page 186
AD
) must be selected to ensure a minimum T
OSC
OSC
OSC
OSC
OSC
OSC
Selecting the A/D Conversion Clock
Operation
16 T
32 T
64 T
2 T
4 T
8 T
RC
OSC
OSC
OSC
OSC
OSC
OSC
AD Clock Source (T
T
AD
vs. DEVICE OPERATING FREQUENCIES
AD
per 10-bit conversion.
AD
times derived from
ADCS2:ADCS0
AD
)
000
100
001
101
010
110
011
AD
AD
AD
are:
. The
time
17.3
The ADCON1, TRISA and TRISE registers control the
operation of the A/D port pins. The port pins that are
desired as analog inputs, must have their corresponding
TRIS bits set (input). If the TRIS bit is cleared (output),
the digital output level (V
The A/D operation is independent of the state of the
CHS2:CHS0 bits and the TRIS bits.
Note 1: When reading the port register, all pins con-
PIC18FXX2
10.00 MHz
20.00 MHz
40.00 MHz
1.25 MHz
2.50 MHz
5.00 MHz
Configuring Analog Port Pins
—
2: Analog levels on any pin that is defined as
Maximum Device Frequency
figured as analog input channels will read
as cleared (a low level). Pins configured as
digital inputs will convert an analog input.
Analog levels on a digitally configured input
will not affect the conversion accuracy.
a digital input (including the AN4:AN0
pins) may cause the input buffer to con-
sume current that is out of the device’s
specification.
© 2006 Microchip Technology Inc.
OH
or V
OL
PIC18LFXX2
) will be converted.
10.67 MHz
21.33 MHz
1.33 MHz
2.67 MHz
5.33 MHz
666 kHz
—
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