PIC16F877A-I/PT Microchip Technology Inc., PIC16F877A-I/PT Datasheet - Page 177

• 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 15-21:
TABLE 15-13: A/D CONVERSION REQUIREMENTS
Note 1: ADRES register may be read on the following T
Param
No.
130
131
132
134
2001 Microchip Technology Inc.
*
†
§
A/D DATA
2: See Section 11.1 for minimum conditions.
Note: If the A/D clock source is selected as RC, a time of T
SAMPLE
A/D CLK
BSF ADCON0, GO
ADRES
T
Sym
T
T
T
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.
This specification ensured by design.
CNV
ACQ
ADIF
AD
GO
GO
Q4
instruction to be executed.
A/D clock period
Conversion time (not including S/H time)
(Note 1)
Acquisition time
Q4 to A/D clock start
132
A/D CONVERSION TIMING
Characteristic
(T
OSC
/2)
Extended(LF)
Standard(F)
Extended(LF)
Standard(F)
9
(1)
8
OLD_DATA
CY
7
cycle.
SAMPLING STOPPED
(Note 2)
Min
10*
1.6
3.0
2.0
3.0
—
CY
is added before the A/D clock starts. This allows the SLEEP
131
130
T
OSC
Typ†
4.0
6.0
40
—
—
—
—
/2 §
2
Max
6.0
9.0
12
—
—
—
—
—
1
Units
T
—
AD
s
s
s
s
s
s
1 T
0
CY
PIC16F87X
T
T
A/D RC mode
A/D RC mode
The minimum time is the
amplifier settling time. This may
be used if the "new" input volt-
age has not changed by more
than 1 LSb (i.e., 20.0 mV @
5.12V) from the last sampled
voltage (as stated on C
If the A/D clock source is
selected as RC, a time of T
added before the A/D clock
starts. This allows the SLEEP
instruction to be executed.
OSC
OSC
based, V
based, V
NEW_DATA
DONE
Conditions
DS30292C-page 175
REF
REF
3.0V
2.0V
HOLD
CY
).
is