US1881ESE Melexis Inc, US1881ESE Datasheet - Page 46

• Manufacturer Part Number: US1881ESE
• Description: IC LATCH CMOS MP TSOT23-3
• Manufacturer: Melexis Inc
• Type: Bipolar Latchr

Specifications of US1881ESE

• Sensing Range: 9.5mT Trip, -9.5mT Release
• Voltage - Supply: 3.5 V ~ 24 V
• Current - Supply: 5mA
• Current - Output (max): 50mA
• Output Type: Digital, Open Drain
• Operating Temperature: -40°C ~ 85°C
• Package / Case: TSOT-23-3, TSOT-3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: US1881ESETR

Analog Interfaces
There is a wide range of analog interfaces that can be integrated with the microcontroller. Multi-channel A/D
converters in both 8 and 10 bit resolution . Band gap references for absolute measurements. On chip tempera-
ture sensing for compensation of measurements, digital to analog conversion, phase locked loops (PLLs) as well
as operational amplifiers and comparators. Oscillators can be implemented either with external frequency defin-
ing components or completely internal. Oscillators that are completely internal have frequency controlled from
a value stored in EEPROM. Custom analog interfaces are also available to meet the customer's needs.
Power
Maximum power consumption depends on the microcontroller and its exact configuration, clock frequency,
loads, etc. The minimum power needed can be as low as 150 A in a sleep or power down mode with the core
still active. Operating supply can be from 6 to 26 volts and load dump protection to 80 volts.
Development Tools
Melexis has developed a tools set and methodology which allows the user to develop their system concurrently
with silicon development.
Software
Melexis has a full set of software tools to expedite the firmware development. For developing assembly language
firmware, an assembler, linker and loader is used. A C compiler is also available for developing firmware. The
firmware development can also be expedited by the software simulator. The simulator allows the developer to
run or single step through the code as well as reading and forcing registers and memory locations.
Hardware
A development board is available which contains a processor core with all of the program memory and periph-
eral interfaces external to the processor. The processor core with the RAM and interrupt controller are contained
in one Melexis chip. The firmware is executed from a user programmed PROM or EPROM. Peripheral inter-
faces and functions are implemented within a Xilinx PLA and discrete components. The PLA can be repro-
grammed by the user to develop the exact logic and interfaces needed. In addition to the development board,
there is an in circuit emulator (ICE) available. The ICE replaces an external PROM/EPROM and allows control
over the program execution flow. The user can start, stop and single step though the program, similar to using
the software simulator.
Prototype Devices
Development is also made easier by prototype devices. These devices have the internal busses brought out to
package pins. This allows for use of external program memory or ICE while the peripheral interfaces are at their
final implementation