PIC18F448-I/PT Microchip Technology, PIC18F448-I/PT Datasheet - Page 24
PIC18F448-I/PT
Manufacturer Part Number
PIC18F448-I/PT
Description
IC PIC MCU FLASH 8KX16 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18LF242-ISO.pdf
(36 pages)
2.PIC18F248-ISO.pdf
(402 pages)
3.PIC18F248-ISO.pdf
(8 pages)
Specifications of PIC18F448-I/PT
Core Size
8-Bit
Program Memory Size
16KB (8K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
33
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 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
33
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
No. Of Timers
4
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
SPI, I2C, USART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
33
Number Of Timers
4 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
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DV164136, DM163011
Minimum Operating Temperature
- 40 C
On-chip Adc
8
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
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F448-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18F448-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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If the main oscillator is configured for HS4 (PLL) mode,
an oscillator start-up time (T
time-out (T
2 ms and allows the PLL to lock to the main oscillator
frequency. A timing diagram indicating the transition
from the Timer1 oscillator to the main oscillator for HS4
mode is shown in Figure 2-9.
FIGURE 2-9:
FIGURE 2-10:
DS41159E-page 22
PIC18FXX8
Note 1: RC Oscillator mode assumed.
Internal System
(OSCCON<0>)
Note 1: T
Internal System
(OSCCON<0>)
PLL Clock
Program
Counter
Program
Counter
T1OSI
OSC1
OSC2
T1OSI
Clock
OSC1
OSC2
Clock
PLL
OST
SCS
Input
SCS
) will occur. The PLL time-out is typically
= 1024 T
Q4
PC
OSC
Q3
TIMING FOR TRANSITION BETWEEN TIMER1 AND OSC1 (HS WITH PLL)
TIMING FOR TRANSITION BETWEEN TIMER1 AND OSC1 (RC, EC)
(drawing not to scale).
Q1
OST
T
OST
) plus an additional PLL
PC
Q4
T
PLL
Q1
T
PC + 2
OSC
T
1
1
OSC
T
If the main oscillator is configured in the RC, RCIO, EC
or ECIO modes, there is no oscillator start-up time-out.
Operation will resume after eight cycles of the main
oscillator have been counted. A timing diagram indicat-
ing the transition from the Timer1 oscillator to the main
oscillator for RC, RCIO, EC and ECIO modes is shown
in Figure 2-10.
T
2
2
1
P
3
3
PC + 2
T
4
SCS
4
T
T
T
SCS
1
5
P
5
6
6
7
7
Q1 Q2 Q3 Q4 Q1 Q2
8
8
© 2006 Microchip Technology Inc.
Q1 Q2 Q3 Q4 Q1 Q2 Q3
PC + 4
PC + 4
Q3
Q4
Q4
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