PIC16F688-E/P Microchip Technology, PIC16F688-E/P Datasheet - Page 365

• Manufacturer Part Number: PIC16F688-E/P
• Description: IC MCU PIC FLASH 4KX14 14DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F688-E/P

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 14-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 12
• 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
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SCI/USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 12
• 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, 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: AC162066 - HEADER INTRFC MPLAB ICD2 20PINAC162061 - HEADER INTRFC MPLAB ICD2 20PINDM163029 - BOARD PICDEM FOR MECHATRONICSAC162056 - HEADER INTERFACE ICD2 16F688ACICE0207 - MPLABICE 14P 300 MIL ADAPTER
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

19.4
19.5
19.6
1997 Microchip Technology Inc.
Voltage Reference Accuracy/Error
Operation During Sleep
Effects of a Reset
The full range of V
sistors on the top and bottom of the resistor ladder network
approaching V
changes with fluctuations in V
in the Device Data Sheets electrical specification
When the device wakes up from sleep through an interrupt or a Watchdog Timer time-out, the
contents of the VRCON register are not affected. To minimize current consumption in SLEEP
mode, the Voltage Reference should be disabled.
A device reset disables the Voltage Reference by clearing the VREN bit (VRCON<7>). This reset
also disconnects the reference from the V
selects the high voltage range by clearing the VRR bit (VRCON<5>). The V
VRCON<3:0>, are also cleared.
SS
Section 19. Voltage Reference
or V
SS
to V
DD
. The Voltage Reference is V
DD
cannot be realized due to the construction of the module. The tran-
DD
. The absolute accuracy of the Voltage Reference can be found
REF
pin by clearing the VROE bit (VRCON<6>) and
parameter
DD
derived and therefore, the V
D311.
(Figure
19-1) keep V
REF
DS31019A-page 19-5
value select bits,
REF
REF
output
from
19