PIC16F684-I/ST Microchip Technology, PIC16F684-I/ST Datasheet - Page 45
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PIC16F684-I/ST
Manufacturer Part Number
PIC16F684-I/ST
Description
IC PIC MCU FLASH 2KX14 14TSSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F684-ISL.pdf
(4 pages)
4.PIC16F684-ISL.pdf
(192 pages)
5.PIC16F684-ISL.pdf
(6 pages)
6.PIC16F684-IST.pdf
(164 pages)
Specifications of PIC16F684-I/ST
Program Memory Type
FLASH
Program Memory Size
3.5KB (2K x 14)
Package / Case
14-TSSOP
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
12
Eeprom Size
256 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
128 B
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
12
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, DM164120-4
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT14SS-1 - SOCKET TRANSITION 14DIP/14SSOP
Connectivity
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F684-I/ST
Manufacturer:
KEMET
Quantity:
1 000
Part Number:
PIC16F684-I/ST
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
PIC16F684-I/STG
Manufacturer:
LYONTEK
Quantity:
100
Part Number:
PIC16F684-I/STG
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
5.0
The Timer0 module is an 8-bit timer/counter with the
following features:
• 8-bit timer/counter register (TMR0)
• 8-bit prescaler (shared with Watchdog Timer)
• Programmable internal or external clock source
• Programmable external clock edge selection
• Interrupt on overflow
Figure 5-1 is a block diagram of the Timer0 module.
FIGURE 5-1:
© 2007 Microchip Technology Inc.
T0CKI
SWDTEN
pin
Note 1: T0SE, T0CS, PSA, PS<2:0> are bits in the OPTION register.
WDTE
F
INTOSC
OSC
31 kHz
TIMER0 MODULE
T0SE
2: SWDTEN and WDTPS<3:0> are bits in the WDTCON register.
3: WDTE bit is in the Configuration Word register.
/4
BLOCK DIAGRAM OF THE TIMER0/WDT PRESCALER
Watchdog
Timer
T0CS
0
1
PSA
Prescaler
0
1
16-bit
16
Prescaler
WDTPS<3:0>
8-bit
8
PS<2:0>
5.1
When used as a timer, the Timer0 module can be used
as either an 8-bit timer or an 8-bit counter.
5.1.1
When used as a timer, the Timer0 module will
increment every instruction cycle (without prescaler).
Timer mode is selected by clearing the T0CS bit of the
OPTION register to ‘0’.
When TMR0 is written, the increment is inhibited for
two instruction cycles immediately following the write.
5.1.2
When used as a counter, the Timer0 module will
increment on every rising or falling edge of the T0CKI
pin. The incrementing edge is determined by the T0SE
bit of the OPTION register. Counter mode is selected by
setting the T0CS bit of the OPTION register to ‘1’.
Note:
3
Timer0 Operation
8-BIT TIMER MODE
The value written to the TMR0 register can
be adjusted, in order to account for the two
instruction cycle delay when TMR0 is
written.
8-BIT COUNTER MODE
PSA
PSA
1
0
1
0
Sync 2
Time-out
cycles
WDT
PIC16F684
Data Bus
DS41202F-page 43
Set Flag bit T0IF
8
TMR0
on Overflow