PIC18F252-I/SO Microchip Technology Inc., PIC18F252-I/SO Datasheet - Page 29
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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
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TABLE 3-1:
REGISTER 3-1:
TABLE 3-2:
© 2006 Microchip Technology Inc.
Note 1: 2 ms is the nominal time required for the 4x PLL to lock.
HS with PLL enabled
Power-on Reset
MCLR Reset during normal
operation
Software Reset during normal
operation
Stack Full Reset during normal
operation
Stack Underflow Reset during
normal operation
MCLR Reset during SLEEP
WDT Reset
WDT Wake-up
Brown-out Reset
Interrupt wake-up from SLEEP
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as '0'
Note 1: When the wake-up is due to an interrupt and the GIEH or GIEL bits are set, the PC is loaded with the
Configuration
External RC
HS, XT, LP
2: 72 ms is the nominal power-up timer delay, if implemented.
Oscillator
interrupt vector (0x000008h or 0x000018h).
EC
Condition
TIME-OUT IN VARIOUS SITUATIONS
STATUS BITS, THEIR SIGNIFICANCE AND THE INITIALIZATION CONDITION FOR
RCON REGISTER
(1)
RCON REGISTER BITS AND POSITIONS
bit 7
Note 1: Refer to Section 4.14 (page 53) for bit definitions.
R/W-0
IPEN
72 ms + 1024 T
72 ms + 1024 T
PWRTE = 0
+ 2ms
72 ms
72 ms
Program
PC + 2
Counter
PC + 2
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
U-0
—
Power-up
(1)
OSC
OSC
0--1 1100
0--u uuuu
0--0 uuuu
0--u uu11
0--u uu11
0--u 10uu
0--u 01uu
u--u 00uu
0--1 11u0
u--u 00uu
U-0
Register
(2)
—
RCON
PWRTE = 1
1024 T
1024 T
+ 2 ms
—
—
R/W-1
OSC
OSC
RI
RI
1
u
0
u
u
u
1
u
1
u
TO
1
u
u
u
u
1
0
0
1
1
72 ms
72 ms
R-1
TO
PD
1
u
u
u
u
0
1
0
1
0
Brown-out
(2)
(2)
72 ms
72 ms
+ 2 ms
+ 1024 T
+ 1024 T
POR
0
u
u
u
u
u
u
u
1
u
(2)
(2)
R-1
PD
BOR
PIC18FXX2
OSC
OSC
0
u
u
u
u
u
u
u
0
u
STKFUL
R/W-0
Oscillator Switch
POR
1024 T
Wake-up from
u
u
u
u
1
u
u
u
u
u
DS39564C-page 27
1024 T
SLEEP or
OSC
—
—
STKUNF
OSC
R/W-0
+ 2 ms
BOR
u
u
u
1
u
u
u
u
u
u
bit 0
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