PIC18F2455-I/SP Microchip Technology Inc., PIC18F2455-I/SP Datasheet - Page 112
PIC18F2455-I/SP
Manufacturer Part Number
PIC18F2455-I/SP
Description
Microcontroller; 24 KB Flash; 2048 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F2455-ISP.pdf
(320 pages)
Specifications of PIC18F2455-I/SP
A/d Inputs
10-Channel, 10-Bit
Comparators
2
Cpu Speed
12 MIPS
Eeprom Memory
256 Bytes
Input Output
23
Interface
I2C/SPI/USART/USB
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin SPDIP
Programmable Memory
24K Bytes
Ram Size
2K Bytes
Speed
48 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18F2455-I/SP
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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PIC18F2450/4450
TABLE 9-9:
TABLE 9-10:
DS39760A-page 110
PORTE
LATE
TRISE
ADCON1
Legend: — = unimplemented, read as ‘0’
Note 1:
RE0/AN5
RE1/AN6
RE2/AN7
MCLR/V
RE3
Legend:
Note 1:
Name
Pin
(3)
2:
3:
(3)
PP
/
Implemented only when Master Clear functionality is disabled (MCLRE Configuration bit = 0); otherwise,
read as ‘0’.
RE3 is the only PORTE bit implemented on both 28-pin and 40/44-pin devices. All other bits are
implemented only when PORTE is implemented (i.e., 40/44-pin devices).
These registers and/or bits are unimplemented on 28-pin devices.
OUT = Output, IN = Input, ANA = Analog Signal, DIG = Digital Output, ST = Schmitt Buffer Input.
RE3 does not have a corresponding TRISE<3> bit. This pin is always an input regardless of mode.
Bit 7
Function
—
—
—
—
PORTE I/O SUMMARY
SUMMARY OF REGISTERS ASSOCIATED WITH PORTE
MCLR
RE0
AN5
RE1
AN6
RE2
AN7
RE3
V
PP
Bit 6
Setting
—
—
—
—
TRIS
—
—
—
0
1
1
0
1
1
0
1
1
(1)
(1)
(1)
VCFG1
OUT
OUT
OUT
Bit 5
I/O
IN
IN
IN
IN
IN
IN
IN
IN
IN
—
—
—
Advance Information
I/O Type
ANA
ANA
ANA
ANA
DIG
DIG
DIG
ST
ST
ST
ST
ST
VCFG0
Bit 4
—
—
—
LATE<0> data output; not affected by analog input.
PORTE<0> data input; disabled when analog input enabled.
A/D input channel 5; default configuration on POR.
LATE<1> data output; not affected by analog input.
PORTE<1> data input; disabled when analog input enabled.
A/D input channel 6; default configuration on POR.
LATE<2> data output; not affected by analog input.
PORTE<2> data input; disabled when analog input enabled.
A/D input channel 7; default configuration on POR.
PORTE<3> data input; enabled when MCLRE Configuration bit
is clear.
External Master Clear input; enabled when MCLRE Configuration bit
is set.
High-voltage detection, used for ICSP™ mode entry detection.
Always available regardless of pin mode.
RE3
PCFG3
Bit 3
—
—
(1,2)
TRISE2
PCFG2
LATE2
RE2
Bit 2
(3)
Description
TRISE1
PCFG1
RE1
LATE1
Bit 1
© 2006 Microchip Technology Inc.
(3)
TRISE0
PCFG0
RE0
LATE0
Bit 0
(3)
on page
Values
Reset
51
51
51
50
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