PIC18F452-E/P Microchip Technology, PIC18F452-E/P Datasheet - Page 20
PIC18F452-E/P
Manufacturer Part Number
PIC18F452-E/P
Description
IC MCU CMOS 40MHZ 16K FLSH 40DIP
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)
8.PIC18F452-EP.pdf
(332 pages)
Specifications of PIC18F452-E/P
Program Memory Type
FLASH
Program Memory Size
32KB (16K x 16)
Package / Case
40-DIP (0.600", 15.24mm)
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
34
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 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°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
34
Number Of Timers
4
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 125 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, DV164136, DM163022
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Package
40PDIP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
ACICE0206 - ADAPTER MPLABICE 40P 600 MIL
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F452-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- 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
- PIC18F452-EP PDF datasheet #8
- Current page: 20 of 332
- Download datasheet (6Mb)
PIC18FXX2
TABLE 2-2:
An external clock source may also be connected to the
OSC1 pin in the HS, XT and LP modes, as shown in
Figure 2-2.
FIGURE 2-2:
DS39564B-page 18
These values are for design guidance only.
See notes following this table.
20.0 MHz
32.0 kHz
200 kHz
1.0 MHz
4.0 MHz
8.0 MHz
Note 1: Higher capacitance increases the stability
Clock from
Ext. System
Mode
HS
LP
XT
2: Rs may be required in HS mode, as well
3: Since each resonator/crystal has its own
of the oscillator, but also increases the
start-up time.
as XT mode, to avoid overdriving crystals
with low drive level specification.
characteristics, the user should consult the
resonator/crystal manufacturer for appro-
priate values of external components., or
verify oscillator performance.
20.0 MHz
25.0 MHz
Epson CA-301 20.000M-C ± 30 PPM
Open
32.0 kHz
1.0 MHz
4.0 MHz
4.0 MHz
8.0 MHz
Epson C-001R32.768K-A
200 kHz
200 kHz
Epson CA-301 8.000M-C
STD XTL 200.000KHz
Freq
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR
ECS ECS-10-13-1
ECS ECS-40-20-1
Ranges Tested:
Crystals Used
EXTERNAL CLOCK INPUT
OPERATION (HS, XT OR LP
OSC CONFIGURATION)
OSC1
OSC2
22-68 pF
15-33 pF
15-33 pF
15-33 pF
33 pF
15 pF
15 pF
15 pF
15 pF
C1
PIC18FXXX
± 20 PPM
± 20 PPM
± 30 PPM
± 50 PPM
± 50 PPM
22-68 pF
15-33 pF
15-33 pF
15-33 pF
33 pF
15 pF
15 pF
15 pF
15 pF
C2
2.3
For timing-insensitive applications, the “RC” and
“RCIO” device options offer additional cost savings.
The RC oscillator frequency is a function of the supply
voltage, the resistor (R
ues and the operating temperature. In addition to this,
the oscillator frequency will vary from unit to unit due to
normal process parameter variation. Furthermore, the
difference in lead frame capacitance between package
types will also affect the oscillation frequency, espe-
cially for low C
into account variation due to tolerance of external R
and C components used. Figure 2-3 shows how the
R/C combination is connected.
In the RC Oscillator mode, the oscillator frequency
divided by 4 is available on the OSC2 pin. This signal
may be used for test purposes or to synchronize other
logic.
FIGURE 2-3:
The RCIO Oscillator mode functions like the RC mode,
except that the OSC2 pin becomes an additional gen-
eral purpose I/O pin. The I/O pin becomes bit 6 of
PORTA (RA6).
C
V
Recommended values:3 k
Note:
R
EXT
SS
EXT
V
DD
RC Oscillator
If the oscillator frequency divided by 4 sig-
nal is not required in the application, it is
recommended to use RCIO mode to save
current.
EXT
F
OSC
values. The user also needs to take
/4
RC OSCILLATOR MODE
OSC1
C
OSC2/CLKO
EXT
EXT
2002 Microchip Technology Inc.
) and capacitor (C
> 20pF
R
EXT
100 k
PIC18FXXX
Internal
Clock
EXT
) val-
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