PIC18F4431-E/ML Microchip Technology, PIC18F4431-E/ML Datasheet - Page 346

• Manufacturer Part Number: PIC18F4431-E/ML
• Description: IC MCU FLASH 8KX16 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 16KB (8K x 16)
• 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 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
26.4.3
FIGURE 26-5:
TABLE 26-4:
DS39616D-page 346
1A
1
2
3
4
Note 1:
Param.
No.
OSC1
CLKO
F
T
T
TosL,
TosH
TosR,
TosF
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
OSC
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
Q1
(1)
) equals four times the input oscillator time base period for all configurations
1
(1)
(1)
(1)
(1)
Q2
Min
250
250
100
100
DC
DC
0.1
2.5
25
25
25
30
10
—
—
—
4
4
5
2
3
10,000
Max
200
250
250
7.5
40
25
10
20
50
Q3
—
—
—
—
—
—
—
4
4
3
Units
MHz
MHz
MHz
MHz
MHz
kHz
ns
ns
ns
ns
ns
s
ns
ns
s
ns
ns
ns
ns
Q4
4
EC, ECIO
RC osc
XT osc
HS osc
HS + PLL osc
LP Osc mode
EC, ECIO
RC osc
XT osc
HS osc
HS + PLL osc
LP osc
T
XT osc
LP osc
HS osc
XT osc
LP osc
HS osc
CY
 2010 Microchip Technology Inc.
= 4/F
4
OSC
Conditions
Q1