PIC18F452-I/P Microchip Technology Inc., PIC18F452-I/P Datasheet - Page 344
PIC18F452-I/P
Manufacturer Part Number
PIC18F452-I/P
Description
40 PIN, 32 KB FLASH, 1536 RAM, 34 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F452-IP.pdf
(390 pages)
Specifications of PIC18F452-I/P
A/d Inputs
8-Channel, 10-Bit
Comparators
2
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
40-pin PDIP
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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PIC18F2420/2520/4420/4520
26.4.3
FIGURE 26-5:
TABLE 26-6:
DS39631A-page 342
1A
1
2
3
4
Note 1:
Param.
No.
OSC1
CLKO
F
T
T
T
T
T
T
Instruction cycle period (T
except PLL. All specified values are based on characterization data for that particular oscillator type under
standard operating conditions with the device executing code. Exceeding these specified limits may result
in an unstable oscillator operation and/or higher than expected current consumption. All devices are tested
to operate at “min.” values with an external clock applied to the OSC1/CLKI pin. When an external clock
input is used, the “max.” cycle time limit is “DC” (no clock) for all devices.
TIMING DIAGRAMS AND SPECIFICATIONS
Symbol
OSC
CY
OS
OS
OS
OS
OSC
L,
H
R,
F
EXTERNAL CLOCK TIMING REQUIREMENTS
External CLKI Frequency
Oscillator Frequency
External CLKI Period
Oscillator Period
Instruction Cycle Time
External Clock in (OSC1)
High or Low Time
External Clock in (OSC1)
Rise or Fall Time
EXTERNAL CLOCK TIMING (ALL MODES EXCEPT PLL)
Q4
Characteristic
CY
(1)
) equals four times the input oscillator time base period for all configurations
Q1
1
(1)
(1)
(1)
(1)
Preliminary
Q2
Min
250
250
100
100
DC
DC
0.1
2.5
25
40
30
30
10
—
—
—
4
4
5
2
10,000
3
Max
250
250
7.5
40
25
10
33
20
50
—
—
—
—
—
—
—
4
4
Q3
3
Units
MHz
MHz
MHz
MHz
MHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
Q4
4
EC, ECIO Oscillator mode
RC Oscillator mode
XT Oscillator mode
HS Oscillator mode
HS + PLL Oscillator mode
LP Oscillator mode
EC, ECIO Oscillator mode
RC Oscillator mode
XT Oscillator mode
HS Oscillator mode
HS + PLL Oscillator mode
LP Oscillator mode
T
XT Oscillator mode
LP Oscillator mode
HS Oscillator mode
XT Oscillator mode
LP Oscillator mode
HS Oscillator mode
CY
2004 Microchip Technology Inc.
= 4/F
4
OSC
Conditions
Q1
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