PIC18F452-E/P Microchip Technology, PIC18F452-E/P Datasheet - Page 27
![IC MCU CMOS 40MHZ 16K FLSH 40DIP](/photos/6/61/66192/150-40-dip_sml.jpg)
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: 27 of 332
- Download datasheet (6Mb)
3.0
The PIC18FXXX differentiates between various kinds
of RESET:
a)
b)
c)
d)
e)
f)
g)
h)
Most registers are unaffected by a RESET. Their status
is unknown on POR and unchanged by all other
RESETS. The other registers are forced to a “RESET
state” on Power-on Reset, MCLR, WDT Reset, Brown-
out Reset, MCLR Reset during SLEEP and by the
RESET instruction.
FIGURE 3-1:
© 2006 Microchip Technology Inc.
MCLR
OSC1
V
Note 1: This is a separate oscillator from the RC oscillator of the CLKI pin.
Power-on Reset (POR)
MCLR Reset during normal operation
MCLR Reset during SLEEP
Watchdog Timer (WDT) Reset (during normal
operation)
Programmable Brown-out Reset (BOR)
RESET Instruction
Stack Full Reset
Stack Underflow Reset
DD
Instruction
RESET
RESET
2: See Table 3-1 for time-out situations.
Pointer
RC OSC
Stack
On-chip
OST/PWRT
Brown-out
V
Module
Detect
(1)
DD
WDT
Reset
Rise
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
Stack Full/Underflow Reset
OST
PWRT
External Reset
10-bit Ripple Counter
Time-out
Reset
10-bit Ripple Counter
WDT
BOREN
Power-on Reset
SLEEP
Enable PWRT
Enable OST
Most registers are not affected by a WDT wake-up,
since this is viewed as the resumption of normal oper-
ation. Status bits from the RCON register, RI, TO, PD,
POR and BOR, are set or cleared differently in different
RESET situations, as indicated in Table 3-2. These bits
are used in software to determine the nature of the
RESET. See Table 3-3 for a full description of the
RESET states of all registers.
A simplified block diagram of the On-Chip Reset Circuit
is shown in Figure 3-1.
The Enhanced MCU devices have a MCLR noise filter
in the MCLR Reset path. The filter will detect and
ignore small pulses.
The MCLR pin is not driven low by any internal
RESETS, including the WDT.
(2)
PIC18FXX2
S
R
DS39564C-page 25
Q
Chip_Reset
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