PIC16F872-I/SP Microchip Technology Inc., PIC16F872-I/SP Datasheet - Page 132

• Manufacturer Part Number: PIC16F872-I/SP
• Description: 28 PIN, 7 KB FLASH, 128 RAM, 22 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F872-I/SP

• A/d Inputs: 5-Channel, 10-Bit
• Cpu Speed: 5 MIPS
• Eeprom Memory: 64 Bytes
• Input Output: 22
• Interface: I2C/SPI
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 3.5K Bytes
• Ram Size: 128 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F872
FIGURE 14-8:
TABLE 14-4:
DS30221C-page 130
Param
No.
40*
41*
42*
45*
46*
47*
† Data in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested.
Note: Refer to Figure 14-3 for load conditions.
48
* These parameters are characterized but not tested.
RC0/T1OSO/T1CKI
Tt0H
Tt0L
Tt0P
Tt1H
Tt1L
Tt1P
Ft1
TCKEZtmr1 Delay from External Clock Edge to Timer Increment
Symbol
RA4/T0CKI
TMR0 or
TMR1
TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
T0CKI High Pulse Width
T0CKI Low Pulse Width
T0CKI Period
T1CKI High Time Synchronous, Prescaler = 1
T1CKI Low Time
T1CKI Input
Period
Timer1 Oscillator Input Frequency Range
(oscillator enabled by setting bit T1OSCEN)
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
Characteristic
Synchronous,
Prescaler = 2,4,8
Asynchronous
Synchronous, Prescaler = 1
Synchronous,
Prescaler = 2,4,8
Asynchronous
Synchronous
Asynchronous
40
45
No Prescaler
With Prescaler
No Prescaler
With Prescaler
No Prescaler
With Prescaler
Standard(F)
Extended(LF)
Standard(F)
Extended(LF)
Standard(F)
Extended(LF)
Standard(F)
Extended(LF)
Standard(F)
Extended(LF)
Standard(F)
Extended(LF)
42
47
30
50
20 or T
0.5T
0.5T
0.5T
0.5T
Greater of:
Greater of:
Greater of:
T
OR
OR
CY
2T
41
46
Min
100
CY
CY
CY
CY
DC
10
10
15
25
30
50
15
25
30
50
60
T
T
OSC
CY
+ 40
CY
CY
+ 20
+ 20
+ 20
+ 20
N
N
N
+ 40
+ 40
+ 40
Typ† Max Units
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
© 2006 Microchip Technology Inc.
7T
200
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
OSC
48
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
—
Must also meet
parameter 42
Must also meet
parameter 42
N = prescale
value (2, 4,...,
256)
Must also meet
parameter 47
Must also meet
parameter 47
N = prescale
value (1, 2, 4, 8)
N = prescale
value (1, 2, 4, 8)
Conditions