PIC16F689-E/ML Microchip Technology, PIC16F689-E/ML Datasheet - Page 86
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,20PIN,PLASTIC](/photos/6/64/66481/c04-126_ml_sml.jpg)
PIC16F689-E/ML
Manufacturer Part Number
PIC16F689-E/ML
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,20PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F690DM-PCTLHS.pdf
(306 pages)
3.PIC16F677-IP.pdf
(2 pages)
4.PIC16F677-IP.pdf
(16 pages)
Specifications of PIC16F689-E/ML
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
18
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNAC162061 - HEADER INTRFC MPLAB ICD2 20PIN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F690DM-PCTLHS PDF datasheet #2
- PIC16F677-IP PDF datasheet #3
- PIC16F677-IP PDF datasheet #4
- Current page: 86 of 306
- Download datasheet (6Mb)
PIC16F631/677/685/687/689/690
6.0
The Timer1 module is a 16-bit timer/counter with the
following features:
• 16-bit timer/counter register pair (TMR1H:TMR1L)
• Programmable internal or external clock source
• 3-bit prescaler
• Optional LP oscillator
• Synchronous or asynchronous operation
• Timer1 gate (count enable) via comparator or
• Interrupt on overflow
• Wake-up on overflow (external clock,
• Time base for the Capture/Compare function
• Special Event Trigger (with ECCP)
• Comparator output synchronization to Timer1
Figure 6-1 is a block diagram of the Timer1 module.
FIGURE 6-1:
DS41262E-page 84
T1G pin
Asynchronous mode only)
(PIC16F685/PIC16F690 only)
(PIC16F685/PIC16F690 only)
clock
Without CLKOUT
OSC1/T1CKI
OSC2/T1G
TIMER1 MODULE WITH GATE
CONTROL
T1OSCEN
INTOSC
Note 1:
Set flag bit
TMR1IF on
Overflow
2:
3:
4:
TIMER1 BLOCK DIAGRAM
ST Buffer is low power type when using LP oscillator, or high speed type when using T1CKI.
Timer1 register increments on rising edge.
Synchronize does not operate while in Sleep.
SYNCC2OUT is synchronized when the C2SYNC bit of the
Oscillator
TMR1H
TMR1
(2)
TMR1L
EN
(1)
Internal
F
OSC
Clock
/4
6.1
The Timer1 module is a 16-bit incrementing counter
which is accessed through the TMR1H:TMR1L register
pair. Writes to TMR1H or TMR1L directly update the
counter.
When used with an internal clock source, the module is
a timer. When used with an external clock source, the
module can be used as either a timer or counter.
6.2
The TMR1CS bit of the T1CON register is used to select
the clock source. When TMR1CS = 0, the clock source
is F
supplied externally.
TMR1CS
F
T1CKI pin
T1LPOSC
OSC
1
0
Source
To C2 Comparator Module
Timer1 Clock
Clock
OSC
/4
/4. When TMR1CS = 1, the clock source is
Timer1 Operation
Clock Source Selection
T1CKPS<1:0>
T1SYNC
Prescaler
1, 2, 4, 8
TMR1ON
SYNCC2OUT
CM2CON1
T1OSCEN
0
1
2
x
0
1
© 2008 Microchip Technology Inc.
TMR1GE
register is set.
(4)
Synchronized
Synchronize
clock input
INTOSCIO
T1GSS
FOSC
Mode
1
0
LP or
xxx
xxx
det
(3)
T1GINV
TMR1CS
0
1
1
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