PIC16F88-I/SO Microchip Technology Inc., PIC16F88-I/SO Datasheet - Page 38
PIC16F88-I/SO
Manufacturer Part Number
PIC16F88-I/SO
Description
18 PIN, 7 KB FLASH, 368 RAM, 16 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F88-ISO.pdf
(228 pages)
Specifications of PIC16F88-I/SO
A/d Inputs
7-Channel, 10-Bit
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
256 Bytes
Input Output
16
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
18-pin SOIC
Programmable Memory
7K 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
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PIC16F87/88
FIGURE 4-2:
TABLE 4-2:
DS30487C-page 36
Capacitor values are for design guidance only.
These capacitors were tested with the resonators
listed below for basic start-up and operation. These
values were not optimized.
Different capacitor values may be required to produce
acceptable oscillator operation. The user should test
the performance of the oscillator over the expected
V
See the notes following this table for additional
information.
DD
Note:
Note 1: See Table 4-2 for typical values of C1 and
Mode
HS
XT
and temperature range for the application.
2: A series resistor (R
3: R
C1
C2
Typical Capacitor Values Used:
(1)
(1)
When using resonators with frequencies
above 3.5 MHz, the use of HS mode,
rather than XT mode, is recommended.
HS mode may be used at any V
which the controller is rated. If HS is
selected, it is possible that the gain of the
oscillator will overdrive the resonator.
Therefore, a series resistor should be
placed between the OSC2 pin and the
resonator. As a good starting point, the
recommended value of R
C2.
(typically between 2 M to 10 M
F
16.0 MHz
2.0 MHz
4.0 MHz
8.0 MHz
455 kHz
Freq
RES
R
varies with the resonator chosen
S (2)
CERAMIC RESONATORS
(FOR DESIGN GUIDANCE
ONLY)
OSC1
OSC2
CERAMIC RESONATOR
OPERATION (HS OR XT
OSC CONFIGURATION)
S
R
) may be required.
OSC1
56 pF
47 pF
33 pF
27 pF
22 pF
F (3)
S
PIC16F87/88
is 330
To Internal
Logic
Sleep
.
OSC2
56 pF
47 pF
33 pF
27 pF
22 pF
DD
for
4.3
The ECIO Oscillator mode requires an external clock
source to be connected to the OSC1 pin. There is no
oscillator start-up time required after a Power-on
Reset, or after an exit from Sleep mode.
In the ECIO Oscillator mode, the OSC2 pin becomes
an additional general purpose I/O pin. The I/O pin
becomes bit 6 of PORTA (RA6). Figure 4-3 shows the
pin connections for the ECIO Oscillator mode.
FIGURE 4-3:
Clock from
Ext. System
External Clock Input
RA6
EXTERNAL CLOCK INPUT
OPERATION
(ECIO CONFIGURATION)
2005 Microchip Technology Inc.
OSC1/CLKI
I/O (OSC2)
PIC16F87/88
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