TXS0102DTTR

Part: TXS0102 from Texas Instruments

Type: 2-Bit Bidirectional Voltage-Level Translator

Description: The TXS0102 is a 2-bit non-inverting bidirectional voltage-level translator supporting 1.65–3.6V on port A and 2.3–5.5V on port B, with data rates up to 24Mbps for push-pull and 2Mbps for open-drain applications.

Operating Conditions:

• Supply voltage: VCCA: 1.65V to 3.6V, VCCB: 2.3V to 5.5V (VCCA ≤ VCCB)
• Operating temperature: -40 to 85 °C

Absolute Maximum Ratings:

• Max supply voltage: VCCA: 4.6V, VCCB: 6.5V
• Max continuous current: ±50 mA
• Max junction/storage temperature: 150 °C

Key Specs:

• VCCA Operating Voltage: 1.65V to 3.6V
• VCCB Operating Voltage: 2.3V to 5.5V
• Max Data Rate (Push-Pull): 24Mbps
• Max Data Rate (Open-Drain): 2Mbps
• Combined Supply Current (I CCA + I CCB): 14.4 μA (max, over -40°C to 85°C)
• Input Capacitance (OE): 3.5 pF (max, at 3.3V)
• Port A Output Low Voltage (VOLA): 0.4V (max, IOL = 1mA)
• Port B Output Low Voltage (VOLB): 0.4V (max, IOL = 1mA)

Features:

• No direction-control signal needed
• Maximum data rates: 24Mbps (push pull), 2Mbps (open drain)
• 1.65V to 3.6V on A port and 2.3V to 5.5V on B port (VCCA ≤ VCCB)
• VCC isolation feature
• No power-supply sequencing required
• Ioff supports partial-power-down mode operation

Applications:

• I2C / SMBus
• UART
• GPIO

Package:

• DCT (SSOP, 8)
• DCU (VSSOP, 8)
• DQE (X2SON, 8)
• DQM (SON, 8)
• YZP (DSBGA, 8)
• DTT (DSBGA, 8)

• No direction-control signal needed
• Maximum data rates:
• -24Mbps (push pull)
• -2Mbps (open drain)
• Available in the Texas Instruments NanoStar ™ integrated circuit package
• 1.65V to 3.6V on A port and 2.3V to 5.5V on B port (VCCA ≤ VCCB)
• VCC isolation feature: if either V CC input is at GND, both ports are in the High-Impedance state
• No power-supply sequencing required: either VCCA or VCCB can be ramped first
• Ioff supports partial-power-down mode operation
• Latch-up performance exceeds 100mA per JESD 78, Class II
• ESD protection exceeds JESD 22:
• -A port:
• 2500V Human-Body Model (A114-B)
• 250V Machine Model (A115-A)
• 1500V Charged-Device Model (C101)
• -B port:
• 8kV Human-Body Model (A114-B)
• 250V Machine Model (A115-A)
• 1500V Charged-Device Model (C101)

• I 2 C / SMBus
• UART
• GPIO

Figure 4-1. YZP Package, 8-Pin DSBGA (Bottom View)

$v _ { c c A } { frac { 1 - i √ { 8 } } { 2 } } _ { C C B } A 1 { frac { 2 - i √ { 7 } } { 2 } } _ { B 1 } A 2 { frac { 3 - i √ { 6 } } { 3 } } _ { B 2 } G N D { 4 - i √ { 5 } } O EFigure 4-3. DQE or DQM Package, 8-Pin X2SON (Top View)

Figure 4-2. DCT or DCU Package, 8-Pin SSOP and VSSOP (Top View)

B 2 { div { 8 } B 1 G N D { div { 7 } V c c B V c c A { 3 div 6 } O E A 2 { 4 div 5 } A 1$

Figure 4-4. DTT Package, 8-Pin SOP (Top View)

Table 4-1. Pin Functions

over operating free-air temperature range (unless otherwise noted) (1) (2) (3)

over operating free-air temperature range (unless otherwise noted) (1)

over operating free-air temperature range (unless otherwise noted) (1) (2) (3) (4) (5)

• (4) VCCA must be less than or equal to VCCB , and VCCA must not exceed 3.6V.
• (5) All unused inputs of the device must be held at V CC or GND to ensure proper device operation. Refer to the TI application note, Implications of Slow or Floating CMOS Inputs .

The TXS0102 device can be used to bridge the digital-switching compatibility gap between two voltage nodes to successfully interface logic threshold levels found in electronic systems. It should be used in a point-to-point topology for interfacing devices or systems operating at different interface voltages with one another. Its primary target application use is for interfacing with open-drain drivers on the data I/Os such as I 2 C or 1-wire, where the data is bidirectional and no control signal is available. The device can also be used in applications where a push-pull driver is connected to the data I/Os, but the TXB0102 might be a better option for such push-pull applications.

• (1) For more information, see Section 11
• (2) The package size (length × width) is a nominal value and includes pins, where applicable.

Typical Application Block Diagram for TXS0102