PIC16F914-E/P Microchip Technology, PIC16F914-E/P Datasheet - Page 4
![IC PIC MCU FLASH 4KX14 40DIP](/photos/6/61/66192/150-40-dip_sml.jpg)
PIC16F914-E/P
Manufacturer Part Number
PIC16F914-E/P
Description
IC PIC MCU FLASH 4KX14 40DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F913-ISS.pdf
(330 pages)
3.PIC16F913-ISS.pdf
(8 pages)
4.PIC16F913-ISS.pdf
(34 pages)
Specifications of PIC16F914-E/P
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
35
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 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
40-DIP (0.600", 15.24mm)
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
SSP, I2C, AUSART, SPI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
35
Number Of Timers
2
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 125 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, DV164120, DM163029
Minimum Operating Temperature
- 40 C
On-chip Adc
8
For Use With
DM163029 - BOARD PICDEM FOR MECHATRONICSDVA18XP400 - DEVICE ADAPTER 18F4220 PDIP 40LD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F914-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
PIC16F91X/946
3. Module: Asynchronous Timer1
EXAMPLE 1:
DS80238C-page 4
Update:
This Errata supersedes Errata DS80329.
When TImer1 is started or updated, the timer
needs to see a falling edge from the external clock
source before a rising edge can increment the
counter. If writes to TMR1H and TMR1L are not
completed while the external clock pulse is still
high, Timer1 will not count the first clock pulse after
the update.
Affected Silicon Revisions
PIC16F913/914
PIC16F916/917
PIC16F946
BTFSC
GOTO
BTFSS
GOTO
BCF
BSF
BCF
BSF
BCF
Critical Timing of code sequence for instructions following last write to TMR1L or TMR1H.
A0
A0
A0
X
X
X
A1
A1
A1
X
X
X
TMR1L,0
$-1
TMR1L,0
$-1
T1CON,TMR1CS
TMR1H,7
T1CON,TMR1ON
T1CON,TMR1CS
T1CON,TMR1ON
A2
A2
A2
X
X
X
A3
B0
X
X
B1
X
;Timer has just incremented, 31 μs before next rising edge to
;complete reload
;Select HFINTOSC for Timer1
;Timer1 high byte 0x80
;Timer1 off
;Select external crystal
;Timer1 on
B2
X
B3
X
When using an external crystal, the pulse width
from rising to falling edge is temperature
dependent and may decrease with temperature.
As a result, the timer may require an additional
oscillation to overflow.
Work around
Switching to the HFINTOSC after reloading, the
timer ensures the Timer1 will see a falling edge
before switching back to the external clock source.
Due to the time from Timer1 overflow to the reload
being application specific, wait for the timer to
increment before beginning the reload sequence.
This ensures the timer does not miss a rising edge
during reload.
© 2009 Microchip Technology Inc.