PIC16F684-I/SL Microchip Technology, PIC16F684-I/SL Datasheet - Page 364

• Manufacturer Part Number: PIC16F684-I/SL
• Description: IC PIC MCU FLASH 2KX14 14SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F684-I/SL

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• 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
• Package: 14SOIC N
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Data Rom Size: 256 B
• Height: 1.25 mm
• Length: 8.65 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Width: 3.9 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: PIC16F684-I/SLG

PICmicro MID-RANGE MCU FAMILY
19.3
DS31019A-page 19-4
Configuring the Voltage Reference
The Voltage Reference can output 16 distinct voltage levels for each range.
The equations used to calculate the output of the Voltage Reference are as follows:
The settling time of the Voltage Reference must be considered when changing the V
Example 19-1
of 1.25V with V
Generally the V
load into VR3:VR0.
some error since VR3:VR0 can only be an integer, and the V
so that the result is not greater then 15.
Equation 19-1:
When VRR = 1
When VRR = 0
if VRR = 1: V
if VRR = 0: V
shows an example of how to configure the Voltage Reference for an output voltage
DD
REF
REF
REF
VR3:VR0 =
VR3:VR0 =
Calculating VR3:VR0
= 5.0V.
and V
Equation 19-1
= (VR3:VR0/24) x V
= (V
DD
DD
x 1/4) + (VR3:VR0/32) x V
of the system will be known and you need to determine the value to
V
V
V
REF
REF
DD
shows how to calculate the VR3:VR0 value. There will be
V
- V
DD
X 24
DD
DD
/4
X 32
DD
REF
and V
1997 Microchip Technology Inc.
DD
levels must be chosen
REF
output.