MAX5527EVKIT Maxim Integrated, MAX5527EVKIT Datasheet - Page 3

• Manufacturer Part Number: MAX5527EVKIT
• Description: Digital Potentiometer ICs Evaluation Kit for the MAX5527
• Manufacturer: Maxim Integrated

Specifications of MAX5527EVKIT

• Resistance: 100 kOhms
• Number Of Pots: Single
• Taps Per Pot: 64
• Wiper Memory: Non Volatile
• Digital Interface: Serial (2-Wire)
• Operating Supply Voltage: 5 V
• Supply Current: 1.5 uA
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 2.7 V

Each button corresponds to a command used to set
the wiper position or program the device.
The wiper position is adjusted sequentially through the
tap positions using a simple 2-wire interface. To incre-
ment the wiper position, press the Up button. To decre-
ment the wiper position, press the Down button.
To program the power-on-reset (POR) wiper position
into the MAX5527’s OTP memory:
1) Set the Lockout Bit checkbox appropriately
2) Adjust wiper to desired position using Up
3) Press the Program OTP button.
Note: The wiper is still adjustable using the Up and
Down buttons immediately after OTP programming
with the Lockout Bit checked. The wiper will not be
locked until a complete power cycle occurs, which
includes disabling the parallel port. Follow the direc-
tions in the Resetting the MAX5527 section to perform
a complete power cycle.
Figure 1. MAX5527 EV Kit Software Main Window
.
• Checked disables up/down digital interface after
• Unchecked enables up/down digital interface
and Down.
programming.
after programming.
_______________________________________________________________________________________
Detailed Description
Programming OTP
of Software
Wiper Control
MAX5527 Evaluation Kit
To reset the device:
1) Turn off the power supply connected to PV.
2) Turn off the power supply connected to VDD.
3) Check the Disable Parallel Port checkbox. (This
4) Disconnect any power supply connected to the H,
5) Turn on the power supply connected to VDD.
6) Turn on the power supply connected to PV.
7) Uncheck the Disable Parallel Port checkbox.
The MAX5527 EV kit is a complete programming plat-
form for the MAX5527 digital potentiometer. Parallel
port signals are level translated through a MAX1840 to
ensure reliable operation. The EV kit also includes an
8-pin µMAX socket to ease the programming of
multiple devices.
ensures the device is not powered through the
interface.)
W, and L pads.
Detailed Description
Resetting the MAX5527
of Hardware
3