PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 344

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: 64 PIN, 64 KB FLASH, 3840 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6621-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 54
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 64K Bytes
• Ram Size: 3.8K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F6525/6621/8525/8621
FIGURE 27-11:
TABLE 27-12: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
DS39612B-page 342
40
41
42
45
46
47
48
Legend:
Param.
No.
Note:
T1OSO/T13CKI
Tt0H
Tt0L
Tt0P
Tt1H
Tt1L
Tt1P
Ft1
Tcke2tmrI Delay from External T13CKI Clock Edge to Timer
Symbol
TMR0 or
TMR1
TBD = To Be Determined
T0CKI
Refer to Figure 27-4 for load conditions.
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 PIC18F6X2X/8X2X
Synchronous, no prescaler
Synchronous,
with prescaler
Asynchronous PIC18F6X2X/8X2X
Synchronous
Asynchronous
Characteristic
No prescaler
With prescaler
No prescaler
With prescaler
No prescaler
With prescaler
PIC18F6X2X/8X2X
PIC18LF6X2X/8X2X
PIC18LF6X2X/8X2X
PIC18F6X2X/8X2X
PIC18LF6X2X/8X2X
PIC18LF6X2X/8X2X
40
45
42
47
20 ns or T
20 ns or T
0.5 T
0.5 T
0.5 T
41
46
0.5 T
Greater of:
Greater of:
T
2 T
CY
TBD
Min
DC
CY
CY
CY
10
10
10
25
30
50
10
25
30
60
CY
OSC
+ 10
CY
CY
+ 20
+ 20
+ 20
+ 5
N
N
+ 40
+ 40
7 T
TBD
 2005 Microchip Technology Inc.
Max
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
OSC
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