PIC16C72-20E/SO Microchip Technology, PIC16C72-20E/SO Datasheet - Page 140

• Manufacturer Part Number: PIC16C72-20E/SO
• Description: IC MCU OTP 2KX14 A/D PWM 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C72-20E/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Data Converters: A/D 5x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: I2C, SPI, SSP
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 3
• Operating Supply Voltage: 2.5 V to 6 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000, DM163022
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 5 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

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