PIC18C442T-I/L Microchip Technology, PIC18C442T-I/L Datasheet - Page 175
![IC MCU OTP 8KX16 A/D 44PLCC](/photos/6/63/66325/150-44-plcc_sml.jpg)
PIC18C442T-I/L
Manufacturer Part Number
PIC18C442T-I/L
Description
IC MCU OTP 8KX16 A/D 44PLCC
Manufacturer
Microchip Technology
Series
PIC® 18Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16C770-ISO.pdf
(8 pages)
3.PIC18C242-ISO.pdf
(305 pages)
4.PIC18C242-ISO.pdf
(12 pages)
Specifications of PIC18C442T-I/L
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
16KB (8K x 16)
Program Memory Type
OTP
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Processor Series
PIC18C
Core
PIC
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
MSSP, SPI, I2C, PSP, USART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
34
Number Of Timers
1 x 16 bit
Operating Supply Voltage
2.5 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
ICE2000, DM163022, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
8
For Use With
I3DB18C452 - BOARD DAUGHTER ICEPIC3DVA16XL441 - ADAPTER DEVICE ICE 44PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18C442T-I/L
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC18C242-ISO PDF datasheet #3
- PIC18C242-ISO PDF datasheet #4
- Current page: 175 of 305
- Download datasheet (6Mb)
17.0
In many applications, the ability to determine if the
device voltage (V
is a desirable feature. A window of operation for the
application can be created, where the application soft-
ware can do “housekeeping tasks” before the device
voltage exits the valid operating range. This can be
done using the Low Voltage Detect module.
This module is a software programmable circuitry,
where a device voltage trip point can be specified.
When the voltage of the device becomes lower then the
specified point, an interrupt flag is set. If the interrupt is
enabled, the program execution will branch to the inter-
rupt vector address and the software can then respond
to that interrupt source.
FIGURE 17-1:
The block diagram for the LVD module is shown in
Figure 17-2. A comparator uses an internally gener-
ated reference voltage as the set point. When the
selected tap output of the device voltage crosses the
set point (is lower than), the LVDIF bit is set.
Each node in the resistor divider represents a “trip
point” voltage. The “trip point” voltage is the minimum
supply voltage level at which the device can operate
before the LVD module asserts an interrupt. When the
2000 Microchip Technology Inc.
LOW VOLTAGE DETECT
DD
V
V
) is below a specified voltage level
A
B
TYPICAL LOW VOLTAGE DETECT APPLICATION
Time
T
A
T
B
The Low Voltage Detect circuitry is completely under
software control. This allows the circuitry to be “turned
off” by the software, which minimizes the current con-
sumption for the device.
Figure 17-1 shows a possible application voltage curve
(typically for batteries). Over time, the device voltage
decreases. When the device voltage equals voltage V
the LVD logic generates an interrupt. This occurs at
time T
until the device voltage is no longer in valid operating
range, to shut-down the system. Voltage point V
minimum valid operating voltage specification. This
occurs at time T
time for shut-down.
supply voltage is equal to the trip point, the voltage
tapped off of the resistor array is equal to the 1.2V
internal reference voltage generated by the voltage
reference module. The comparator then generates an
interrupt signal setting the LVDIF bit. This voltage is
software programmable to any one of 16 values (see
Figure 17-2). The trip point is selected by program-
ming the LVDL3:LVDL0 bits (LVDCON<3:0>).
A
. The application software then has the time,
Legend:
V
V
A
B
= LVD trip point
= Minimum valid device
B
operating voltage
. The difference T
PIC18CXX2
DS39026C-page 173
B
- T
A
is the total
B
is the
A
,
Related parts for PIC18C442T-I/L
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC18C442-I/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 8KX16 A/D 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18C442-I/PT](/photos/6/82/68251/c04-076_pt_tmb.jpg)
Part Number:
Description:
IC MCU OTP 8KX16 A/D 44TQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18C442/JW](/photos/6/63/66338/150-40-cdip_tmb.jpg)
Part Number:
Description:
IC MCU EPROM 8KX16 A/D 40CDIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18C442-E/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU OTP 8KX16 A/D 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC18C442-E/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU OTP 8KX16 A/D 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18C442-E/PT](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC MCU OTP 8KX16 A/D 44TQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18C442-I/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LDCC,44PIN,PLASTIC
Manufacturer:
Microchip Technology
Datasheet:
![TC1014-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1014-5.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.5VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.8VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet: