PIC16C432-E/SS Microchip Technology, PIC16C432-E/SS Datasheet - Page 54

• Manufacturer Part Number: PIC16C432-E/SS
• Description: IC MCU CMOS 8BIT 20MHZ 2K 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C432-E/SS

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: LIN (Local Interconnect Network)
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 12
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-SSOP
• For Use With: XLT20SS-1 - SOCKET TRANSITION 18DIP 20SSOPAC164307 - MODULE SKT FOR PM3 28SSOPAC164029 - MODULE SKT PROMATEII 20DIP/SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

PIC16C432
FIGURE 9-11:
FIGURE 9-12:
DS41140B-page 52
Note 1: External Power-on Reset circuit is required
Note 1: This circuit will activate RESET when V
V
DD
V
DD
D
2:
3: R1 = 100
2: Internal Brown-out Reset circuitry should
33k
only if V
diode D helps discharge the capacitor quickly
when V
voltage drop across R does not violate the
device’s electrical specification.
ing into MCLR from external capacitor C, in
the event of MCLR/V
Electrostatic Discharge (ESD), or Electrical
Overstress (EOS).
< 40 k
V
goes below (Vz + 0.7V), where Vz = Zener
voltage.
be disabled when using this circuit.
DD
R
C
DD
DD
10k
is recommended to make sure that
powers down.
power-up slope is too slow. The
EXTERNAL POWER-ON
RESET CIRCUIT (FOR
SLOW V
EXTERNAL BROWN-OUT
PROTECTION CIRCUIT 1
to 1 k
R1
40k
will limit any current flow-
PP
DD
pin breakdown due to
V
MCLR
PIC16C432
POWER-UP)
MCLR
PIC16C432
DD
DD
Preliminary
FIGURE 9-13:
FIGURE 9-14:
Note 1: This brown-out circuit is less expensive,
T
Technology’s MCP809 microcontroller supervisor. The
MCP8XX and MCP1XX families of supervisors provide
push-pull and open collector outputs with both high and
low active RESET pins. There are 7 different trip point
selections to accommodate 5V and 3V systems.
his brown-out protection circuit employs Microchip
V
V
SS
DD
2: Internal brown-out detection should be dis-
3: Resistors should be adjusted for the charac-
MCP809
RST
R1
R2
albeit less accurate. Transistor Q1 turns off
when V
abled when using this circuit.
teristics of the transistor.
V
DD
V
V
DD
DD
x
DD
Bypass
Capacitor
R1 + R2
is below a certain level such that:
EXTERNAL BROWN-OUT
PROTECTION CIRCUIT 2
EXTERNAL BROWN-OUT
PROTECTION CIRCUIT 3
R1
2002 Microchip Technology Inc.
Q1
40k
= 0.7V
PIC16C432
V
MCLR
PIC16C432
DD
MCLR
V
DD