PIC18F252-I/SO Microchip Technology Inc., PIC18F252-I/SO Datasheet - Page 23
PIC18F252-I/SO
Manufacturer Part Number
PIC18F252-I/SO
Description
Microcontroller; 32 KB Flash; 1536 RAM; 256 EEPROM; 25 I/O; 28-Pin-SOIC
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F252-ISO.pdf
(332 pages)
Specifications of PIC18F252-I/SO
A/d Inputs
5-Channel, 10-Bit
Comparators
2
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
25
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin SOIC
Programmable Memory
32K Bytes
Ram Size
1.5K Bytes
Speed
40 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F252-I/SO
Manufacturer:
TE
Quantity:
5 001
Company:
Part Number:
PIC18F252-I/SO
Manufacturer:
MICROCHIP
Quantity:
6
Company:
Part Number:
PIC18F252-I/SO
Manufacturer:
MICROCHI
Quantity:
92
Part Number:
PIC18F252-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- Current page: 23 of 332
- Download datasheet (6Mb)
2.6.1
The system clock source switching is performed under
software control. The system clock switch bit, SCS
(OSCCON<0>) controls the clock switching. When the
SCS bit is ’0’, the system clock source comes from the
main oscillator that is selected by the FOSC configura-
tion bits in Configuration Register1H. When the SCS bit
is set, the system clock source will come from the
Timer1 oscillator. The SCS bit is cleared on all forms of
RESET.
REGISTER 2-1:
© 2006 Microchip Technology Inc.
SYSTEM CLOCK SWITCH BIT
bit 7-1
bit 0
OSCCON REGISTER
bit 7
Unimplemented: Read as '0'
SCS: System Clock Switch bit
When OSCSEN configuration bit = ’0’ and T1OSCEN bit is set:
1 = Switch to Timer1 oscillator/clock pin
0 = Use primary oscillator/clock input pin
When OSCSEN and T1OSCEN are in other states:
bit is forced clear
Legend:
R = Readable bit
- n = Value at POR
U-0
—
U-0
—
W = Writable bit
’1’ = Bit is set
U-0
—
U-0
—
Note:
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
The Timer1 oscillator must be enabled and
operating to switch the system clock
source. The Timer1 oscillator is enabled by
setting the T1OSCEN bit in the Timer1
control register (T1CON). If the Timer1
oscillator is not enabled, then any write to
the SCS bit will be ignored (SCS bit forced
cleared) and the main oscillator will
continue to be the system clock source.
U-0
—
U-0
—
PIC18FXX2
x = Bit is unknown
U-0
—
DS39564C-page 21
R/W-1
SCS
bit 0
Related parts for PIC18F252-I/SO
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Microcontroller; 32 KB Flash; 1536 RAM; 256 EEPROM; 25 I/O; 28-Pin-SPDIP
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
20-Pin USB Flash Microcontrollers
Manufacturer:
MICROCHIP [Microchip Technology]
Datasheet:
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
Microcontrollers (MCU) 48KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
Microcontrollers (MCU) 64KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm T/R
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm T/R
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm T/
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm TRAY
Manufacturer:
Microchip Technology
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm TR
Manufacturer:
Microchip Technology