TMF0008 8K bits Serial FRAM With SDQ Interface

1 Features

• 7680 Bits of FRAM for storage of user-

programmable configuration data partitioned into

multiple pages

• Single-wire interface to reduce circuit board routing

• Communicates at 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), WSON (DRS) and SO

(PS) packages

2 Applications

• Medical cable identification

• Asset trackers

• Connected peripherals & printers

• Counterfeit hardware prevention

3 Description

The TMF0008 is an 8K bits serial Non-Volatile

Memory (NVM) device containing a unique factory-

programmed 48-bit identification number and 8-bit

family code. The memory is FRAM-based and has

higher endurance (106 R/W cycles) compared to other

NVM technologies.

The device communicates over a SDQ™ single-wire

interface and supports both 15.4Kbps and 90Kbps

speeds. The SDQ pin acts as communication and

power for the device. The memory is organized as

thirty memory pages of 256 bits each. Data is written

to a 32-byte scratchpad for verification before being

copied 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 range. This operating range covers most

applications and at the same time enables optimized

design for low-cost development.

Device Information

PART

NUMBER

PACKAGE(1)

PACKAGE

SIZE(2)

BODY SIZE

(NOM)

TMF0008LP

TO-92 (LP)

5.20mm ×

3.68mm

4.83mm ×

4.83mm

TMF0008DRS

WSON (DRS)

3.00mm ×

3.00mm

3.00mm ×

3.00mm

TMF0008PS

SO (PS)

6.20mm ×

7.80mm

6.20mm ×

5.30mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

TMF0008

RPUP ~ 500

µC

VPUP

GND

ESD

Internal

Charge

Storage

SDQ

Power

Conditioning

MCLK

DIGITAL

FRAM

8kb

OTP

64bit unique ID

Block Diagram

TMF0008

SLVSIV3 – JULY 2025

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.