1 Features
• 64768 Bits of FRAM for storage of userprogrammable
configuration data partitioned into
multiple pages
• Single-wire interface to reduce circuit board routing
• Communicates using single-wire protocol:
15.4Kbps (standard Speed) and 90Kbps
(Overdrive Speed)
• Switch-point hysteresis and filtering embedded in
the device to improve performance in the presence
of noise
• IEC 61000-4-2 level 4 ESD protection (±8kV
contact, ±15kV air, typical)
• Factory-programmed unique 64-bit identification
number
• Operating temperature range: -10°C to 85°C
• Operating voltage range: 5V ±5% (standard and
overdrive speed)
• Operating voltage range: 3.3V ±5% (standard
speed only)
• Available in TO-92 (LP) and VSON (DRS)
packages

2 Applications
• Medical Cable Identification
• Asset trackers
• Connected peripherals & printers
• Counterfeit hardware prevention

3 Description
The TMF0064 is a 64Kbit serial non-volatile
memory (NVM) device containing a unique factoryprogrammed
48-bit identification number and an 8-bit
family code. The memory is FRAM-based and has
high endurance (106 R/W cycles) in comparison to
alternate NVM technologies.
The device communicates over a SDQ™ single-wire
interface and supports both 15.4kbps and 90kbps
speeds. The SDQ pin acts as both the communication
and power pin for the device. The memory is
organized as 253 memory pages with 256 bits per
page. Data is first written to a 32-byte scratchpad. The
data is verified before copying to FRAM memory.
The device operates at two supply voltage ranges,
3.3V ±5% and 5V ±5%, and is specified from -10°C to
85°C. The operating range covers most applications
and enables peak design for low-cost development.