AC164112 Microchip Technology, AC164112 Datasheet - Page 33
![VOLTAGE LIMITER MPLAB ICD2 VPP](/photos/8/95/89583/ac164112_sml.jpg)
AC164112
Manufacturer Part Number
AC164112
Description
VOLTAGE LIMITER MPLAB ICD2 VPP
Manufacturer
Microchip Technology
Datasheet
1.AC164112.pdf
(302 pages)
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
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AC164112
Manufacturer:
Microchip Technology
Quantity:
135
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3.0
The PIC16F72X/PIC16LF72X differentiates between
various kinds of Reset:
a)
b)
c)
d)
e)
f)
Some registers are not affected in any Reset condition;
their status is unknown on POR and unchanged in any
other Reset. Most other registers are reset to a “Reset
state” on:
• Power-on Reset (POR)
• MCLR Reset
• MCLR Reset during Sleep
• WDT Reset
• Brown-out Reset (BOR)
FIGURE 3-1:
© 2009 Microchip Technology Inc.
Power-on Reset (POR)
WDT Reset during normal operation
WDT Reset during Sleep
MCLR Reset during normal operation
MCLR Reset during Sleep
Brown-out Reset (BOR)
RESETS
MCLR/V
OSC1/
CLKIN
Note 1:
V
DD
PP
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
WDTOSC
OST/PWRT
Refer to the Configuration Word Register 1 (Register 8-1).
Brown-out
Module
WDT
Reset
POR
MCLRE
OST
PWRT
(1)
10-bit Ripple Counter
WDT
Time-out
Reset
11-bit Ripple Counter
BOREN
Power-on Reset
Sleep
PIC16F72X/PIC16LF72X
Most registers are not affected by a WDT wake-up
since this is viewed as the resumption of normal
operation. TO and PD bits are set or cleared differently
in different Reset situations, as indicated in Table 3-3.
These bits are used in software to determine the nature
of the Reset.
A simplified block diagram of the On-Chip Reset Circuit
is shown in Figure 3-1.
The MCLR Reset path has a noise filter to detect and
ignore small pulses. See Section 23.0 “Electrical
Specifications” for pulse width specifications.
Enable PWRT
Enable OST
DS41341E-page 33
Chip_Reset
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