PIC12F683-E/P Microchip Technology Inc., PIC12F683-E/P Datasheet - Page 80
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PIC12F683-E/P
Manufacturer Part Number
PIC12F683-E/P
Description
8 PIN, 3.5 KB FLASH, 128 RAM, 6 I/O, PDIP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC12F683-EP.pdf
(148 pages)
Specifications of PIC12F683-E/P
A/d Inputs
4 Channel, 10-Bit
Comparators
1
Cpu Speed
5 MIPS
Eeprom Memory
256 Bytes
Frequency
20 MHz
Input Output
6
Memory Type
Flash
Number Of Bits
8
Package Type
8-pin PDIP
Programmable Memory
3.5K Bytes
Ram Size
128 Bytes
Serial Interface
None
Speed
20 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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PIC12F683
12.3
The PIC12F683 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
• MCLR Reset
• MCLR Reset during Sleep
• WDT Reset
• Brown-out Detect (BOD)
FIGURE 12-1:
DS41211B-page 78
MCLR/V
Note 1: Refer to the Configuration Word register (Register 12-1).
Power-on Reset (POR)
WDT Reset during normal operation
WDT Reset during Sleep
Brown-out Detect (BOD)
MCLR Reset during normal operation
MCLR Reset during Sleep
CLKI pin
OSC1/
V
DD
Reset
PP
pin
LFINTOSC
OST/PWRT
Brown-out
V
Module
Detect
DD
Detect
WDT
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
Rise
OST
PWRT
(1)
10-bit Ripple Counter
WDT
Time-out
Reset
11-bit Ripple Counter
SBODEN
BODEN
Power-on Reset
External
Reset
SLEEP
Preliminary
They 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 12-2. These bits are
used in software to determine the nature of the Reset.
See Table 12-4 for a full description of Reset states of
all registers.
A simplified block diagram of the On-Chip Reset Circuit
is shown in Figure 12-1.
The MCLR Reset path has a noise filter to detect and
ignore small pulses. See Section 15.0 “Electrical
Specifications” for pulse width specifications.
Enable PWRT
Enable OST
2004 Microchip Technology Inc.
S
R
Q
Chip_Reset
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