PIC16F87-I/P Microchip Technology, PIC16F87-I/P Datasheet - Page 81
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PIC16F87-I/P
Manufacturer Part Number
PIC16F87-I/P
Description
IC MCU FLASH 4KX14 EEPROM 18DIP
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.PIC16F87-IP.pdf
(24 pages)
9.PIC16F88-ISO.pdf
(214 pages)
Specifications of PIC16F87-I/P
Program Memory Type
FLASH
Program Memory Size
7KB (4K x 14)
Package / Case
18-DIP (0.300", 7.62mm)
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
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
Through Hole
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
Package
18PDIP
Device Core
PIC
Family Name
PIC16
Maximum Speed
20 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
ACICE0202 - ADAPTER MPLABICE 18P 300 MILAC164010 - MODULE SKT PROMATEII DIP/SOIC
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F87-I/P
Manufacturer:
MICROCHIP
Quantity:
3 000
8.0
Timer2 is an 8-bit timer with a prescaler and a
postscaler. It can be used as the PWM time base for the
PWM mode of the CCP1 module. The TMR2 register is
readable and writable, and is cleared on any device
RESET.
The input clock (F
1:4
T2CKPS1:T2CKPS0 (T2CON<1:0>).
The Timer2 module has an 8-bit period register, PR2.
Timer2 increments from 00h until it matches PR2 and
then resets to 00h on the next increment cycle. PR2 is
a readable and writable register. The PR2 register is
initialized to FFh upon RESET.
The match output of TMR2 goes through a 4-bit
postscaler (which gives a 1:1 to 1:16 scaling inclusive)
to generate a TMR2 interrupt (latched in flag bit
TMR2IF (PIR1<1>)).
Timer2 can be shut-off by clearing control bit TMR2ON
(T2CON<2>) to minimize power consumption.
Register 8-1 shows the Timer2 Control register.
Additional information on timer modules is available in
the PICmicro
Manual (DS33023).
2003 Microchip Technology Inc.
or
TIMER2 MODULE
1:16,
®
Mid-Range MCU Family Reference
OSC
selected
/4) has a prescale option of 1:1,
by
control
Preliminary
bits
8.1
The prescaler and postscaler counters are cleared
when any of the following occurs:
• A write to the TMR2 register
• A write to the T2CON register
• Any device RESET (Power-on Reset, MCLR,
TMR2 is not cleared when T2CON is written.
8.2
The output of TMR2 (before the postscaler) is fed to the
Synchronous Serial Port module, which optionally uses
it to generate a shift clock.
FIGURE 8-1:
Note 1: TMR2 register output can be software selected
WDT Reset, or Brown-out Reset)
Sets Flag
bit TMR2IF
Postscaler
1:1
to
Timer2 Prescaler and Postscaler
Output of TMR2
1:16
by the SSP module as a baud clock.
4
TMR2
Output
RESET
EQ
(1)
Comparator
PIC16F87/88
TMR2 reg
TIMER2 BLOCK DIAGRAM
PR2 reg
1:1, 1:4, 1:16
Prescaler
DS30487B-page 79
2
F
OSC
/4