IDTECH SecureHead SPI User Manual page 7

1. Introduction
The SPI SecureHead™ magnetic stripe reader can read 1, 2, or 3 tracks of magnetic stripe information.
When connected to the host, the SecureHead is completely compatible with SPI (Serial Peripheral
Interface). The raw data or decoded data go to the host via SPI. Also, firmware can be upgraded via
SPI.
The SecureHead supports both unencrypted and encrypted data output. When encryption is not
turned on, the decoded data can be formatted with preamble/postamble and terminator characters
to match the format expected by the host.
2. Specifications
General
Electrical
Power Supply 3.0 to 3.6 VDC
I/O Voltage Range 2.7 to 3.6 VDC
Current
Active Power Supply Current 5
mA Standby Power Supply Current 0.03 mA
Environmental
Operating Temperature 0 °C to 55 C
Storage Temperature -40 °C to 70 °C
Mechanical
Weight
Cable Length
Note 1: During the analog components' wake up, a few capacitors are charged up, and the wake-up
inrush current can go up to 40 mA for no more than 5 μsec.
Note 2: During the chip power up, the internal regulator can introduce 80 mA current for 50 μsec.
Note 3: ID TECH recommends that you incorporate the ability to separately control power to the SPI
TrimagIV SecureHead. During the firmware update procedure, there is a short time (a few seconds)
during which, if power is removed from the device, firmware loading can fail. The host software can
cycle the power of SecureHead to get the unit back to bootload mode again, then the host needs to
talk to the unit within ~500 msec and continue loading firmware. Please check Tech Note 015 for
details (available for download on the
For normal operation, we do not recommend turning off the power of the unit. Also, do not turn off
the power within 2 seconds after receiving MSR data.
ID TECH SecureHead SPI with TMIV User Manual
Card Speed 3 to 75 ips (7.6 to 190.5 cm/s)
ESD +4kV discharge to head
Humidity -10% to 90% non-condensing
5.67 grams
125 +/- 6.4 mm
ID TECH Knowledge Base.)
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