PIC18F2455-I/SP Microchip Technology Inc., PIC18F2455-I/SP Datasheet - Page 287
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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TABLE 21-9:
FIGURE 21-7:
© 2006 Microchip Technology Inc.
10
11
12
13
14
15
16
17
18
18A
19
20
20A
21
21A
22†
23†
Note 1:
Param
No.
Note:
Watchdog
Oscillator
Time-out
Time-out
I/O pins
Internal
Internal
PWRT
MCLR
† These parameters are asynchronous events not related to any internal clock edges.
Reset
Reset
Timer
TosH2ckL OSC1
TosH2ckH OSC1
TckR
TckF
TckL2ioV
TioV2ckH Port In Valid before CLKO
TckH2ioI
TosH2ioV OSC1
TosH2ioI
TioV2osH Port Input Valid to OSC1 (I/O in setup time)
TioR
TioF
T
T
POR
V
Symbol
INP
RBP
DD
Measurements are taken in RC mode, where CLKO output is 4 x T
Refer to Figure 21-4 for load conditions.
CLKO AND I/O TIMING REQUIREMENTS
CLKO Rise Time
CLKO Fall Time
CLKO
Port In Hold after CLKO
OSC1
Port Input Invalid
(I/O in hold time)
Port Output Rise Time
Port Output Fall Time
INT Pin High or Low Time
RB7:RB4 Change INT High or Low Time
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND
POWER-UP TIMER TIMING
33
to CLKO
to CLKO
to Port Out Valid
(Q1 cycle) to Port Out Valid
(Q2 cycle) to
Characteristic
32
Advance Information
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
0.25 T
34
30
Min
100
200
T
T
—
—
—
—
—
—
—
—
—
—
CY
CY
CY
0
0
PIC18F2450/4450
+ 25
OSC
Typ
75
75
35
35
50
—
—
—
—
—
—
10
—
10
—
—
—
.
31
0.5 T
Max
200
200
100
100
150
CY
—
25
60
25
60
—
—
—
—
—
—
+ 20
DS39760A-page 285
34
Units Conditions
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
V
V
V
DD
DD
DD
= 2.0V
= 2.0V
= 2.0V
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