PIC16CE625-20/JW Microchip Technology, PIC16CE625-20/JW Datasheet - Page 112
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PIC16CE625-20/JW
Manufacturer Part Number
PIC16CE625-20/JW
Description
OTP 8-Bit CMOS MCU with EEPROM Data Memory
Manufacturer
Microchip Technology
Datasheet
1.PIC16CE625-20JW.pdf
(189 pages)
- Current page: 112 of 189
- Download datasheet (2Mb)
PIC16C9XX
FIGURE 14-11:EXTERNAL POWER-ON
DS30444E - page 112
Note 1: External Power-on Reset circuit is required
2: R < 40 k is recommended to make sure
3: R1 = 100 to 1 k will limit any current
only if V
diode D helps discharge the capacitor
quickly when V
that voltage drop across R does not violate
the device’s electrical specification.
flowing into MCLR from external capacitor
C in the event of MCLR/V
down due to Electrostatic Discharge
(ESD) or Electrical Overstress (EOS).
D
V
RESET CIRCUIT (FOR SLOW
V
DD
DD
DD
R
C
power-up slope is too slow. The
POWER-UP)
DD
R1
powers down.
MCLR
PIC16CXXX
PP
pin break-
FIGURE 14-12:EXTERNAL BROWN-OUT
FIGURE 14-13:EXTERNAL BROWN-OUT
Note 1: This circuit will activate reset when V
Note 1: This brown-out circuit is less expensive,
V
V
DD
2: Resistors should be adjusted for the char-
DD
2: Resistors should be adjusted for the
goes below (Vz + 0.7V) where Vz = Zener
voltage.
acteristics of the transistors.
R1
R2
33k
albeit less accurate. Transistor Q1 turns
off when V
such that:
characteristics of the transistors.
V
DD
PROTECTION CIRCUIT 1
PROTECTION CIRCUIT 2
•
10k
DD
R1 + R2
is below a certain level
R1
1997 Microchip Technology Inc.
Q1
40k
40k
= 0.7V
MCLR
V
MCLR
PIC16CXXX
V
PIC16CXXX
DD
DD
DD
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