PIC18LF2539T-I/SO Microchip Technology, PIC18LF2539T-I/SO Datasheet - Page 275

• Manufacturer Part Number: PIC18LF2539T-I/SO
• Description: IC MCU FLASH 12KX16 EE AD 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF2539T-I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 24KB (12K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1408 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: PIC18LF
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1408 B
• Interface Type: I2C, SPI, AUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 16 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: DV164005, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 23-9:
TABLE 23-8:
 2002 Microchip Technology Inc.
Param
40
41
42
45
46
47
48
No.
Note:
Tt0H
Tt0L
Tt0P
Tt1H
Tt1L
Tt1P
Ft1
Tcke2tmrI Delay from external T13CKI clock edge to timer
Symbol
T0CKI
T13CKI
TMR0 or
TMR1
Refer to Figure 23-4 for load conditions.
TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
T0CKI High Pulse Width
T0CKI Low Pulse Width
T0CKI Period
T13CKI High
Time
T13CKI Low
Time
T13CKI input
period
T13CKI oscillator input frequency range
increment
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous
Synchronous
Asynchronous
Characteristic
40
45
Preliminary
No Prescaler
With Prescaler
No Prescaler
With Prescaler
No Prescaler
With Prescaler
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
42
47
20 n
20 n
41
46
0.5T
0.5T
0.5T
Greater of:
Greater of:
0.5T
T
S
S
2 T
CY
or T
or T
Min
CY
CY
CY
DC
10
10
10
25
30
50
10
25
30
50
60
CY
OSC
+ 10
CY
CY
+ 20
+ 20
+ 20
+ 5
N
N
+ 40
+ 40
PIC18FXX39
7 T
Max
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
OSC
48
Units
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
—
DS30485A-page 273
N = prescale
value
(1, 2, 4,..., 256)
N = prescale
value
(1, 2, 4, 8)
Conditions