PIC18F4520-I/P Microchip Technology Inc., PIC18F4520-I/P Datasheet - Page 348

• Manufacturer Part Number: PIC18F4520-I/P
• Description: 40 Pin, 32 KB Flash, 1536 RAM, 36 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4520-I/P

• A/d Inputs: 13-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 32K Bytes
• Ram Size: 1.5K Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2420/2520/4420/4520
FIGURE 26-9:
TABLE 26-11: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
DS39631A-page 346
Param
40
41
42
45
46
47
48
No.
Note:
T1OSO/T13CKI
Tt0H
Tt0L
Tt0P
Tt1H
Tt1L
Tt1P
Ft1
Tcke2tmrI Delay from External T13CKI Clock Edge to
Symbol
TMR0 or
Refer to Figure 26-4 for load conditions.
T0CKI
TMR1
T0CKI High Pulse Width
T0CKI Low Pulse Width
T0CKI Period
T13CKI
High Time
T13CKI Low
Time
T13CKI
Input Period
T13CKI Oscillator Input Frequency Range
Timer Increment
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous PIC18FXXXX
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous PIC18FXXXX
Synchronous
Asynchronous
Characteristic
40
45
No prescaler
With prescaler
No prescaler
With prescaler
No prescaler
With prescaler
PIC18FXXXX
PIC18LFXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
PIC18LFXXXX
Preliminary
42
47
0.5 T
0.5 T
(T
0.5 T
(T
0.5 T
Greater of:
Greater of:
41
T
CY
46
20 ns or
20 ns or
CY
2 T
CY
Min
DC
CY
CY
CY
10
10
+ 40)/N
10
25
30
50
10
25
30
50
60
+ 40)/N
CY
OSC
+ 10
+ 20
+ 20
+ 20
+ 5
7 T
Max
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
OSC
 2004 Microchip Technology Inc.
48
Units Conditions
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)
V
V
V
V
N = prescale
value (1, 2, 4, 8)
DD
DD
DD
DD
= 2.0V
= 2.0V
= 2.0V
= 2.0V