PIC16F877A-I/PT Microchip Technology Inc., PIC16F877A-I/PT Datasheet - Page 165

• 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

FIGURE 15-7:
TABLE 15-2:
Note 1: Measurements are taken in RC mode where CLKOUT output is 4 x T
Param
22††*
23††*
CLKOUT
2001 Microchip Technology Inc.
No.
10*
11*
12*
13*
14*
15*
16*
17*
18*
19*
20*
21*
I/O Pin
(Output)
Note: Refer to Figure 15-5 for load conditions.
I/O Pin
(Input)
OSC1
*
†
††
TosH2ckL OSC1 to CLKOUT
TioV2osH Port input valid to OSC1 (I/O in setup time)
TioV2ckH Port in valid before CLKOUT
TosH2ioV OSC1 (Q1 cycle) to
TckL2ioV CLKOUT
These parameters are characterized but not tested.
Data in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are
not tested.
These parameters are asynchronous events not related to any internal clock edges.
TosH2ck
TckH2ioI Port in hold after CLKOUT
TosH2ioI OSC1 (Q2 cycle) to
Symbol
TckR
TckF
TioR
TioF
Trbp
Tinp
H
CLKOUT AND I/O TIMING REQUIREMENTS
OSC1 to CLKOUT
CLKOUT rise time
CLKOUT fall time
Port out valid
Port input invalid (I/O in
hold time)
Port output rise time
Port output fall time
INT pin high or low time
RB7:RB4 change INT high or low time
Old Value
CLKOUT AND I/O TIMING
Q4
to Port out valid
Characteristic
10
13
17
Standard (F)
Extended (LF)
Standard (F)
Extended (LF)
Standard (F)
Extended (LF)
14
20, 21
Q1
19
18
T
OSC
OSC
Min
100
200
T
T
—
—
—
—
—
—
—
—
—
—
0
0
CY
CY
+ 200
Q2
.
15
Typ†
100
75
75
35
35
10
10
—
—
—
—
—
—
—
—
—
—
0.5T
PIC16F87X
11
12
Max
200
200
100
100
255
145
145
CY
40
40
—
—
—
—
—
—
—
+ 20
New Value
16
DS30292C-page 163
Q3
Units Conditions
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)