PIC18F6490-E/PT Microchip Technology, PIC18F6490-E/PT Datasheet - Page 371

• Manufacturer Part Number: PIC18F6490-E/PT
• Description: IC PIC MCU FLASH 16KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F6490-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, LCD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• For Use With: DM163028 - BOARD DEMO PICDEM LCD
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

26.4.3
FIGURE 26-5:
TABLE 26-6:
© 2007 Microchip Technology Inc.
1A
1
2
3
4
Note 1:
Param.
No.
OSC1
CLKO
F
T
T
T
T
T
T
Instruction cycle period (T
except PLL. All specified values are based on characterization data for that particular oscillator type under
standard operating conditions with the device executing code. Exceeding these specified limits may result
in an unstable oscillator operation and/or higher than expected current consumption. All devices are tested
to operate at “min.” values with an external clock applied to the OSC1/CLKI pin. When an external clock
input is used, the “max.” cycle time limit is “DC” (no clock) for all devices.
TIMING DIAGRAMS AND SPECIFICATIONS
Symbol
OSC
CY
OS
OS
OS
OS
OSC
L,
H
R,
F
EXTERNAL CLOCK TIMING REQUIREMENTS
EXTERNAL CLOCK TIMING (ALL MODES EXCEPT PLL)
External CLKI Frequency
Oscillator Frequency
External CLKI Period
Oscillator Period
Instruction Cycle Time
External Clock in (OSC1)
High or Low Time
External Clock in (OSC1)
Rise or Fall Time
Q4
Characteristic
CY
(1)
) equals four times the input oscillator time base period for all configurations
Q1
1
(1)
(1)
(1)
PIC18F6390/6490/8390/8490
(1)
1000
Q2
Min
250
250
100
100
DC
DC
DC
DC
0.1
2.5
50
32
50
30
10
—
—
—
4
5
5
2
3
31.25
Max
200
250
250
7.5
20
20
20
50
—
—
—
—
—
—
—
—
—
Q3
1
4
4
1
3
Units
MHz
MHz
MHz
MHz
MHz
kHz
kHz
ns
ns
μs
ns
μs
ns
ns
μs
ns
ns
μs
ns
ns
ns
ns
Q4
4
XT, RC Oscillator mode
HS Oscillator mode
LP Oscillator mode
RC Oscillator mode
XT Oscillator mode
HS Oscillator mode
LP Oscillator mode
XT, RC Oscillator mode
HS Oscillator mode
LP Oscillator mode
RC Oscillator mode
XT Oscillator mode
HS Oscillator mode
HS Oscillator mode
LP Oscillator mode
T
XT Oscillator mode
LP Oscillator mode
HS Oscillator mode
XT Oscillator mode
LP Oscillator mode
HS Oscillator mode
CY
= 4/F
4
OSC
Conditions
DS39629C-page 369
Q1