Evaluation Kit for the MAXQ1852

Description

DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible.

The evaluation kit (EV kit) for the DeepCover Secure Microcontroller (MAXQ1852) provides a proven platform for conveniently evaluating the capabilities of the MAXQ1852. The EV kit includes a MAXQ1852 EV kit board, example software, documentation, and a MAXQ® USB-to-JTAG/1-Wire® Adapter board. The EV kit board includes SIM and SAM smart card sockets, graphic OLED display, pin headers providing access to the processor’s I/O port pins, pushbutton keypad matrix, DB9 female serial connector, and USB Mini-B connector. The EV kit provides a complete, functional system ideal for developing and debugging applications as well as evaluating the overall capabilities of the MAXQ1852 microcontroller.

Key Features

Easily Load and Debug Code Using Supplied MAXQ USB-to-JTAG/1-Wire Adapter
JTAG Interface Provides In-Application Debugging Features
- Step-by-Step Execution Tracing
- Breakpointing by Code Address, Data Memory Address, or Register Access
- Data Memory or Register Content View and Edit
On-Board 3.3V Voltage Regulator
Two Smart Card Sockets (One Full-Size Socket and One SIM Socket) for Prototyping IC Card Applications
On-Board MAX3453 USB Transceiver for USB Communications
Level-Shifted RS-232 Transceiver (MAX3232) Included for Serial Port
Low-Profile, Low-Power 128x32 Graphic OLED Display
User-Input Pushbutton Switches, 4x4 Keypad Matrix, and Indicator LEDs (connected to GPIO)
Self-Destruct Inputs Available on Headers for Connecting to External Trigger Circuits
Battery Plus Battery Holder for Memory Backup and Real-Time Clock Operation
USB Mini-B Connector
Prototyping Area

MAX31740

Ultra-Simple Fan-Speed Controller

Enables Simple Implementation of Customizable Fan Control with No Software Development or MCU Required

Description

The MAX31740 is a sophisticated, yet easy-to-use fan-speed controller. It monitors the temperature of an external NTC thermistor and generates a PWM signal that can be used to control the speed of a 2-, 3-, or 4-wire fan. The fan control characteristics are set using external resistors, thereby eliminating the need for an external microcontroller. Controllable characteristics include the starting temperature for fan control, PWM frequency, fan speed at low temperatures, and slope of the temperature-duty-cycle transfer function.

Because the operating characteristics are selected by hardwired passive components, a simple, low-cost fan-speed controller can be implemented without the need for firmware development. This can dramatically reduce development time for the fan control function.

The MAX31740 is available in a 2mm x 3mm, 8-pin TDFN package.

Key Features

Self-Contained PWM Fan Control—No Micro Needed
Controls Speed of 2-, 3-, or 4-Wire Fans
Resistors Set Fan Control Characteristics
Smooth, Linearly Varying PWM Duty Cycle Minimizes Audibility of Fan Noise
Accurately Monitors External Thermistor Temperature
3.0V to 5.5V Operating Voltage Range
-40°C to +125°C Operating Temperature Range