PIC18F2539T-I/SO Microchip Technology, PIC18F2539T-I/SO Datasheet - Page 23

• Manufacturer Part Number: PIC18F2539T-I/SO
• Description: IC MCU FLASH 12KX16 EE AD 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2539T-I/SO

• 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: 21
• Program Memory Size: 24KB (12K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1408 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1408 B
• Interface Type: I2C, SPI, AUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: DV164005, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5.0
The PIC18FXX39 has several configuration words.
These bits can be set or cleared to select various
device configurations. All other memory areas should
be
configuration 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 a NOP.
5.2
The device ID word for the PIC18FXX39 is located at
3FFFFEh:3FFFFFh. These bits may be used by the
programmer to identify what device type is being
programmed and read out normally, even after code or
read protected.
TABLE 5-1:
 2010 Microchip Technology Inc.
programmed
CONFIGURATION WORD
ID Locations
Device ID Word
PIC18F2439
PIC18F2539
PIC18F4439
PIC18F4539
Device
DEVICE ID VALUE
and
verified
prior
to
setting
Preliminary
DEVID2
04h
04h
04h
04h
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
programmed 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
able, regardless of the state of the LVP bit,
by applying V
RB5 pin can no longer be used as a
general purpose I/O.
PP
is raised to V
PIC18FXX39
IHH
100x xxxx
000x xxxx
101x xxxx
001x xxxx
to the MCLR/V
DEVID1
IHH
. Once the LVP bit is
DS30480C-page 23
PP
pin.