PIC18F4550-I/PT Microchip Technology Inc., PIC18F4550-I/PT Datasheet - Page 384

• Manufacturer Part Number: PIC18F4550-I/PT
• Description: 44 PIN, 32 KB FLASH, 2048 RAM, FS-USB 2.0
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4550-I/PT

• A/d Inputs: 13-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 12 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 34
• Interface: I2C/SPI/UART/USART/USB
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin TQFP
• Programmable Memory: 32K 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

PIC18F2455/2550/4455/4550
FIGURE 28-6:
TABLE 28-11: CLKO AND I/O TIMING REQUIREMENTS
DS39632C-page 382
10
11
12
13
14
15
16
17
18
18A
19
20
20A
21
21A
22†
23†
Note 1:
Param
No.
Note:
(Output)
I/O pin
I/O pin
(Input)
OSC1
CLKO
† These parameters are asynchronous events not related to any internal clock edges.
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
Symbol
INP
RBP
Measurements are taken in RC mode, where CLKO output is 4 x T
Refer to Figure 28-4 for load conditions.
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
Old Value
CLKO AND I/O TIMING
Q4
to CLKO
to CLKO
to Port Out Valid
(Q1 cycle) to Port Out Valid
(Q2 cycle) to
Characteristic
10
13
17
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
14
20, 21
Q1
Preliminary
19
0.25 T
18
Min
100
200
T
T
—
—
—
—
—
—
—
—
—
—
CY
0
0
CY
CY
+ 25
Q2
15
OSC
Typ
75
75
35
35
—
—
—
50
—
—
10
10
—
—
—
—
—
.
0.5 T
© 2006 Microchip Technology Inc.
Max
200
200
100
100
150
CY
25
60
25
60
—
—
—
—
—
—
—
11
12
+ 20
New Value
16
Units Conditions
Q3
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