AC164112 Microchip Technology, AC164112 Datasheet - Page 51

• Manufacturer Part Number: AC164112
• Description: VOLTAGE LIMITER MPLAB ICD2 VPP
• Manufacturer: Microchip Technology

Specifications of AC164112

• Accessory Type: Voltage Limiter
• Product: Cable Assemblies
• Features: Programming And Debugging The Latest PIC12/PIC16/PIC18 Products
• Development Tool Type: Hardware - Eval/Demo Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: MPLAB®
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With: MPLAB ICD 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

5.0
The PIC16F72X devices differ from the PIC16LF72X
devices due to an internal Low Dropout (LDO) voltage
regulator. The PIC16F72X contain an internal LDO,
while the PIC16LF72X do not.
The lithography of the die allows a maximum operating
voltage of 3.6V on the internal digital logic. In order to
continue to support 5.0V designs, a LDO voltage
regulator is integrated on the die. The LDO voltage
regulator allows for the internal digital logic to operate
at 3.2V, while I/O’s operate at 5.0V (V
The LDO voltage regulator requires an external bypass
capacitor for stability. One of three pins, denoted as
V
capacitor. It is recommended that the capacitor be a
ceramic cap between 0.1 to 1.0 µF. The V
intended to supply power to external loads. An external
voltage regulator should be used if this functionality is
required. In addition, external devices should not
supply power to the V
On power-up, the external capacitor will look like a
large load on the LDO voltage regulator. To prevent
erroneous operation, the device is held in Reset while
a constant current source charges the external
capacitor. After the cap is fully charged, the device is
released from Reset. For more information, refer to
Section 23.0 “Electrical Specifications”.
See Configuration Word 2 register (Register 8-2) for
V
© 2009 Microchip Technology Inc.
CAP
CAP
, can be configured for the external bypass
enable bits.
LOW DROPOUT (LDO)
VOLTAGE REGULATOR
CAP
pin.
DD
).
CAP
pin is not
PIC16F72X/PIC16LF72X
DS41341E-page 51