PIC16F877A-I/PT Microchip Technology Inc., PIC16F877A-I/PT Datasheet - Page 164

• Manufacturer Part Number: PIC16F877A-I/PT
• Description: 44 PIN, 7 KB FLASH, 368 RAM, 33 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F877A-I/PT

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 33
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin TQFP
• Programmable Memory: 14K Bytes
• Ram Size: 368 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

PIC16F87X
FIGURE 15-6:
TABLE 15-1:
DS30292C-page 162
Note 1: Instruction cycle period (T
Parameter
CLKOUT
No.
†
1
2
3
4
OSC1
Data in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
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/CLKIN pin. When an external clock input is used, the "max." cycle time
limit is "DC" (no clock) for all devices.
TosR,
F
TosL,
T
TosH
Sym
TosF
T
OSC
OSC
CY
EXTERNAL CLOCK TIMING REQUIREMENTS
EXTERNAL CLOCK TIMING
External CLKIN Frequency
(Note 1)
Oscillator Frequency
(Note 1)
External CLKIN Period
(Note 1)
Oscillator Period
(Note 1)
Instruction Cycle Time
(Note 1)
External Clock in (OSC1) High or
Low Time
External Clock in (OSC1) Rise or
Fall Time
Q4
Characteristic
CY
) equals four times the input oscillator time-base period. All specified values are
Q1
1
Q2
Min
250
250
100
250
250
250
100
200
100
DC
DC
DC
DC
DC
DC
0.1
2.5
50
50
15
—
—
—
4
4
5
5
5
2
Typ†
T
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3
CY
Q3
10,000
Max
3
200
200
250
250
DC
10
20
10
20
—
—
—
—
—
—
—
—
—
—
—
25
50
15
4
4
4
4
Units
MHz XT and RC osc mode
MHz HS osc mode (-04)
MHz HS osc mode (-10)
MHz HS osc mode (-20)
MHz RC osc mode
MHz XT osc mode
MHz HS osc mode (-10)
MHz
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Q4
s
s
s
4
LP osc mode
HS osc mode (-20)
LP osc mode
XT and RC osc mode
HS osc mode (-04)
HS osc mode (-10)
HS osc mode (-20)
LP osc mode
RC osc mode
XT osc mode
HS osc mode (-04)
HS osc mode (-10)
HS osc mode (-20)
LP osc mode
T
XT oscillator
LP oscillator
HS oscillator
XT oscillator
LP oscillator
HS oscillator
2001 Microchip Technology Inc.
CY
4
= 4/F
Conditions
OSC
Q1