PIC12C671-04I/P Microchip Technology Inc., PIC12C671-04I/P Datasheet - Page 61
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PIC12C671-04I/P
Manufacturer Part Number
PIC12C671-04I/P
Description
8 PIN, 1.75 KB OTP, 128 RAM, 6 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC12C671-04IP.pdf
(129 pages)
Specifications of PIC12C671-04I/P
A/d Inputs
4-Channel, 8-Bit
Cpu Speed
2.5 MIPS
Eeprom Memory
0 Bytes
Input Output
5
Memory Type
OTP
Number Of Bits
8
Package Type
8-pin PDIP
Programmable Memory
1.75K Bytes
Ram Size
128 Bytes
Speed
4 MHz
Timers
1-8-bit
Voltage, Range
2.5-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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FIGURE 9-10: EXTERNAL POWER-ON
Note 1: External Power-on Reset circuit is required only
1999 Microchip Technology Inc.
2: R < 40 k
3: R1 = 100
if V
helps discharge the capacitor quickly when V
powers down.
voltage drop across R does not violate the
device’s electrical specification.
into MCLR from external capacitor C, in the
event of MCLR/V
Electrostatic Discharge (ESD) or Electrical
Overstress (EOS).
D
DD
V
power-up slope is too slow. The diode D
DD
RESET CIRCUIT (FOR SLOW
V
R
DD
C
is recommended to make sure that
to 1 k
POWER-UP)
PP
R1
will limit any current flowing
pin breakdown due to
MCLR
PIC12C67X
DD
FIGURE 9-11: EXTERNAL BROWN-OUT
FIGURE 9-12: EXTERNAL BROWN-OUT
Note 1: This circuit will activate reset when V
Note 1: This brown-out circuit is less expensive,
V
V
2: Resistors should be adjusted for the character-
DD
DD
2: Resistors should be adjusted for the charac-
below (Vz + 0.7V), where Vz = Zener voltage.
istics of the transistor.
R1
R2
33k
albeit less accurate. Transistor Q1 turns off
when V
teristics of the transistor.
V
DD
PROTECTION CIRCUIT 1
PROTECTION CIRCUIT 2
DD
•
10k
is below a certain level such that:
R1 + R2
PIC12C67X
R1
Q1
4.3k
4.3k
= 0.7V
DS30561B-page 61
PIC12C67X
PIC12C67X
V
MCLR
V
MCLR
DD
DD
DD
goes
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