PIC16C73A-04/SP Microchip Technology Inc., PIC16C73A-04/SP Datasheet - Page 140
![no-image](/images/manufacturer_photos/0/4/440/microchip_technology_inc__sml.jpg)
PIC16C73A-04/SP
Manufacturer Part Number
PIC16C73A-04/SP
Description
28 PIN, 7 KB OTP, 192 RAM, 22 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16C73A-04SP.pdf
(289 pages)
Specifications of PIC16C73A-04/SP
A/d Inputs
5-Channel, 8-Bit
Cpu Speed
5 MIPS
Eeprom Memory
0 Bytes
Input Output
22
Interface
I2C/SPI/USART
Memory Type
OTP
Number Of Bits
8
Package Type
28-pin SPDIP
Programmable Memory
7K Bytes
Ram Size
192 Bytes
Speed
4 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
2.5-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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PIC16C7X
FIGURE 14-13: EXTERNAL POWER-ON
DS30390E-page 140
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
DD
RESET CIRCUIT (FOR SLOW
V
DD
R
DD
C
power-up slope is too slow. The
POWER-UP)
DD
R1
powers down.
PIC16CXX
MCLR
PP
pin break-
FIGURE 14-14: EXTERNAL BROWN-OUT
FIGURE 14-15: EXTERNAL BROWN-OUT
Note 1: This circuit will activate reset when V
Note 1: This brown-out circuit is less expensive,
V
V
2: Internal brown-out detection on the
3: Resistors should be adjusted for the char-
DD
DD
2: Internal brown-out detection on the
3: Resistors should be adjusted for the
goes below (Vz + 0.7V) where Vz = Zener
voltage.
PIC16C72/73A/74A/76/77 should be dis-
abled when using this circuit.
acteristics of the transistor.
R1
R2
33k
albeit less accurate. Transistor Q1 turns
off when V
such that:
PIC16C72/73A/74A/76/77 should be
disabled when using this circuit.
characteristics of the transistor.
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
PIC16CXX
MCLR
V
PIC16CXX
DD
DD
DD
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