PIC18F448-I/PT Microchip Technology, PIC18F448-I/PT Datasheet - Page 348

• Manufacturer Part Number: PIC18F448-I/PT
• Description: IC PIC MCU FLASH 8KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

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

FIGURE 27-10:
TABLE 27-10: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
DS41159E-page 346
PIC18FXX8
40
41
42
45
46
47
48
Legend: TBD = To Be Determined
Param
No.
Tt0H
Tt0L
Tt0P
Tt1H
Tt1L
Tt1P
Ft1
Tcke2tmrI Delay from External T1CKI Clock Edge to
Symbol
Note: Refer to Figure 27-5 for load conditions.
T1OSO/T1CKI
TMR0 or
T0CKI
TMR1
T0CKI High Pulse Width
T0CKI Low Pulse Width
T0CKI Period
T1CKI
High Time
T1CKI
Low Time
T1CKI
Input Period
T1CKI Oscillator Input Frequency Range
Timer Increment
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous PIC18FXX8
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous PIC18FXX8
Synchronous
Asynchronous
Characteristic
No prescaler
With prescaler
No prescaler
With prescaler
No prescaler
With prescaler
PIC18FXX8
PIC18LFXX8
PIC18LFXX8
PIC18FXX8
PIC18LFXX8
PIC18LFXX8
40
45
42
47
20 ns or T
20 ns or T
0.5 T
0.5 T
0.5 T
0.5 T
Greater of:
Greater of:
T
2 T
CY
TBD
41
Min
46
DC
CY
10
CY
10
CY
10
25
30
50
10
25
30
60
CY
OSC
+ 10
CY
CY
+ 20
+ 20
+ 20
+ 5
N
N
+ 40
+ 40
7 T
Max
TBD
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
50
OSC
© 2006 Microchip Technology Inc.
48
Units
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
—
N = prescale value
(1, 2, 4,..., 256)
N = prescale value
(1, 2, 4, 8)
Conditions