PIC18F452-I/PT Microchip Technology, PIC18F452-I/PT Datasheet - Page 24

• Manufacturer Part Number: PIC18F452-I/PT
• Description: IC MCU FLASH 16KX16 EE 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F452-I/PT

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Type: FLASH
• 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 ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 34
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 1.5KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Package: 44TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 34
• Interface Type: I2C/SPI/USART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/TQFPAC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC18FXX2/XX8
5.0
The PIC18FXX2/XX8 has several configuration words.
These bits can be set or cleared to select various
device configurations. All other memory areas should
be programmed and verified prior to setting configura-
tion words. These bits may be read out normally, even
after read or code protected.
5.1
A user may store identification information (ID) in eight
ID locations mapped in 200000h:200007h. It is
recommended that the most significant nibble of each
ID be 0Fh. In doing so, if the user code inadvertently
tries to execute from the ID space, the ID data will
execute as NOP.
5.2
The device ID word for the PIC18FXX2/XX8 is located
at 3FFFFEh:3FFFFFh. These bits may be used by the
programmer to identify what device type is being pro-
grammed and read out normally, even after code or
read protected.
TABLE 5-1:
DS39576C-page 24
CONFIGURATION WORD
ID Locations
Device ID Word
PIC18F242
PIC18F248
PIC18F252
PIC18F258
PIC18F442
PIC18F448
PIC18F452
PIC18F458
Device
DEVICE ID VALUE
DEVID2
04h
08h
04h
08h
04h
08h
04h
08h
5.3
The LVP bit in configuration register CONFIG4L
enables low voltage ICSP programming. The LVP bit
defaults to a ‘1’ from the factory.
If Low Voltage Programming mode is not used, the LVP
bit can be programmed to a ‘0’ and RB5/PGM becomes
a digital I/O pin. However, the LVP bit may only be pro-
grammed by entering the High Voltage ICSP mode,
where MCLR/V
programmed to a ‘0’, only the High Voltage ICSP mode
is available and only the High Voltage ICSP mode can
be used to program the device.
.
Note 1: The normal ICSP mode is always avail-
Device ID Value
Low Voltage Programming
(LVP) Bit
2: While in Low Voltage ICSP mode, the RB5
able, regardless of the state of the LVP bit,
by applying V
pin can no longer be used as a general
purpose I/O. The RB5 pin should be held
low during normal operation to protect
against inadvertent ICSP mode entry.
PP
is raised to V
 2010 Microchip Technology Inc.
IHH
100x xxxx
000x xxxx
000x xxxx
010x xxxx
101x xxxx
001x xxxx
001x xxxx
011x xxxx
to the MCLR/V
DEVID1
IHH
. Once the LVP bit is
PP
pin.