PIC16F88-I/SO Microchip Technology, PIC16F88-I/SO Datasheet - Page 212
![IC MCU FLASH 4KX14 EEPROM 18SOIC](/photos/6/76/67656/150-18-soic_sml.jpg)
PIC16F88-I/SO
Manufacturer Part Number
PIC16F88-I/SO
Description
IC MCU FLASH 4KX14 EEPROM 18SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(6 pages)
4.PIC16F87-IP.pdf
(228 pages)
5.PIC16F87-IP.pdf
(8 pages)
6.PIC16F87-IP.pdf
(4 pages)
7.PIC16F87-IP.pdf
(8 pages)
8.PIC16F88-ISO.pdf
(214 pages)
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
Company:
Part Number:
PIC16F88-I/SO
Manufacturer:
ROHM
Quantity:
15 000
Part Number:
PIC16F88-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F818-ISO PDF datasheet #3
- PIC16F87-IP PDF datasheet #4
- PIC16F87-IP PDF datasheet #5
- PIC16F87-IP PDF datasheet #6
- PIC16F87-IP PDF datasheet #7
- PIC16F88-ISO PDF datasheet #8
- Current page: 212 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
14.5.2.2
DS31014A-page 14-10
Minimum Resolution
The minimum resolution (in time) of each bit of the PWM duty cycle depends on the prescaler of
Timer2.
Table 14-4: Minimum Duty Cycle Bit Time
Example 14-2:
At most, an 8-bit resolution duty cycle can be obtained from a 78.125 kHz frequency and a
20 MHz oscillator, i.e., 0 DCxB9:DCxB0 255. Any value greater than 255 will result in a 100%
duty cycle.
In order to achieve higher resolution, the PWM frequency must be decreased. In order to achieve
higher PWM frequency, the resolution must be decreased.
Table 14-5
caler and PR2 values are also shown.
Table 14-5: Example PWM Frequencies and Bit Resolutions at 20 MHz
Desired PWM frequency is 78.125 kHz,
Fosc = 20 MHz
TMR2 prescale = 1
Find the maximum resolution of the duty cycle that can be used with a 78.125 kHz frequency
and 20 MHz oscillator:
Timer Prescaler
(1, 4, 16)
PR2 Value
Maximum
Resolution (bits)
PWM Frequency
Prescaler
1/78.125 kHz= [(PR2) + 1] • 4 • 1/20 MHz • 1
12.8 s = [(PR2) + 1] • 4 • 50 ns • 1
PR2
1/78.125 kHz= 2
12.8 s = 2
256
log(256) = (PWM Resolution) • log(2)
8.0
Value
16
1
4
lists example PWM frequencies and resolutions for Fosc = 20 MHz. The TMR2 pres-
= 63
= 2
= PWM Resolution
PWM RESOLUTION
PWM RESOLUTION
PWM Period and Duty Cycle Calculation
T2CKPS1:T2CKPS0
PWM RESOLUTION
1.22 kHz
0xFF
16
10
0 0
0 1
1 x
• 50 ns • 1
4.88 kHz
• 1/20 MHz • 1
0xFF
10
4
19.53 kHz
Minimum Resolution
0xFF
10
1
(Time)
4 T
T
T
OSC
CY
CY
78.12 kHz
0x3F
1
8
1997 Microchip Technology Inc.
156.3 kHz
0x1F
1
7
208.3 kHz
0x17
5.5
1
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