PIC16F88-I/SO Microchip Technology, PIC16F88-I/SO Datasheet - Page 77

IC MCU FLASH 4KX14 EEPROM 18SOIC

PIC16F88-I/SO

Manufacturer Part Number
PIC16F88-I/SO
Description
IC MCU FLASH 4KX14 EEPROM 18SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr

Specifications of PIC16F88-I/SO

Program Memory Type
FLASH
Program Memory Size
7KB (4K x 14)
Package / Case
18-SOIC (7.5mm Width)
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Eeprom Size
256 x 8
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 7x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
368 B
Interface Type
SSP/USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Number Of Timers
3
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163014
Minimum Operating Temperature
- 40 C
On-chip Adc
7-ch x 10-bit
Data Rom Size
256 B
A/d Bit Size
10 bit
A/d Channels Available
7
Height
2.31 mm
Length
11.53 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4 V
Width
7.49 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DVA12XP080 - ADAPTER DEVICE FOR MPLAB-ICEAC164010 - MODULE SKT PROMATEII DIP/SOIC
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16F88-I/SO
Manufacturer:
ROHM
Quantity:
15 000
Part Number:
PIC16F88-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
PIC16F88-I/SO
0
7.6
A crystal oscillator circuit is built between pins T1OSI
(input) and T1OSO (amplifier output). It is enabled by
setting control bit T1OSCEN (T1CON<3>). The oscilla-
tor is a low-power oscillator, rated up to 32.768 kHz. It
will continue to run during all power-managed modes.
It is primarily intended for a 32 kHz crystal. The circuit
for a typical LP oscillator is shown in Figure 7-3.
Table 7-1 shows the capacitor selection for the Timer1
oscillator.
The user must provide a software time delay to ensure
proper oscillator start-up.
FIGURE 7-3:
 2005 Microchip Technology Inc.
Note:
Note:
33 pF
33 pF
C2
C1
Timer1 Oscillator
See the Notes with Table 7-1 for additional
information about capacitor selection.
The Timer1 oscillator shares the T1OSI
and T1OSO pins with the PGD and PGC
pins
debugging.
When using the Timer1 oscillator, In-Circuit
Serial Programming™ (ICSP™) may not
function correctly (high voltage or low
voltage), or the In-Circuit Debugger (ICD)
may not communicate with the controller.
As a result of using either ICSP or ICD, the
Timer1 crystal may be damaged.
If ICSP or ICD operations are required, the
crystal should be disconnected from the
circuit (disconnect either lead) or installed
after programming. The oscillator loading
capacitors may remain in-circuit during
ICSP or ICD operation.
XTAL
32.768 kHz
used
EXTERNAL
COMPONENTS FOR THE
TIMER1 LP OSCILLATOR
for
T1OSI
T1OSO
PIC16F87/88
programming
and
TABLE 7-1:
7.7
The Timer1 oscillator circuit draws very little power
during operation. Due to the low-power nature of the
oscillator, it may also be sensitive to rapidly changing
signals in close proximity.
The oscillator circuit, shown in Figure 7-3, should be
located as close as possible to the microcontroller.
There should be no circuits passing within the oscillator
circuit boundaries other than V
If a high-speed circuit must be located near the oscilla-
tor, a grounded guard ring around the oscillator circuit,
as shown in Figure 7-4, may be helpful when used on
a single-sided PCB or in addition to a ground plane.
FIGURE 7-4:
Osc Type
Note 1: Microchip suggests this value as a starting
LP
2: Higher capacitance increases the stability
3: Since each resonator/crystal has its own
4: Capacitor values are for design guidance
Timer1 Oscillator Layout
Considerations
point in validating the oscillator circuit.
of the oscillator but also increases the
start-up time.
characteristics, the user should consult
the resonator/crystal manufacturer for
appropriate
components.
only.
32 kHz
Freq
CAPACITOR SELECTION FOR
THE TIMER1 OSCILLATOR
PIC16F87/88
OSCILLATOR CIRCUIT
WITH GROUNDED
GUARD RING
values
SS
33 pF
C1
OSC1
RB7
V
OSC2
RB6
RB5
or V
SS
DS30487C-page 75
DD
of
.
33 pF
external
C2

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