TXS0108

Part: TXS0108E — Texas Instruments

Type: 8-Bit Bi-Directional, Level-Shifting, Voltage Translator

Description: The TXS0108E is an 8-bit non-inverting level translator that uses two separate configurable power-supply rails, supporting 1.4V to 3.6V on the A port and 1.65V to 5.5V on the B port, with maximum data rates of 110Mbps (push-pull) and 1.2Mbps (open-drain).

Operating Conditions:

• Supply voltage: VCCA 1.4–3.6 V, VCCB 1.65–5.5 V
• Operating temperature: -40 to 85 °C
• Input transition rise or fall rate: 10 ns/V (max)

Absolute Maximum Ratings:

• Max supply voltage: VCCA 4.6 V, VCCB 6.5 V
• Max continuous current: 50 mA (output), 100 mA (VCCA, VCCB, GND)
• Max junction/storage temperature: 150 °C

Key Specs:

• VCCA supply voltage range: 1.4 V to 3.6 V
• VCCB supply voltage range: 1.65 V to 5.5 V
• Max data rate (push-pull): 110 Mbps (VCCA = 3.3V, VCCB = 5V)
• Max data rate (open-drain): 1.2 Mbps (VCCA = 3.3V, VCCB = 5V)
• Input leakage current (I_I): -1 μA to 1 μA (TA = 25°C), -2 μA to 2 μA (TA = -40°C to 85°C)
• High-impedance state output current (I_OZ): -1 μA to 1 μA (TA = 25°C), -2 μA to 2 μA (TA = -40°C to 85°C)
• Input capacitance (OE): 4.5 pF (typ), 5.5 pF (max)
• Input-to-output internal capacitance (A port): 6 pF (typ), 7 pF (max)

Features:

• No direction-control signal needed
• No power-supply sequencing required
• Latch-up performance exceeds 100mA per JESD 78, class II
• ESD protection exceeds JESD 22 (A port): 2000 V HBM, 150 V MM, 1000 V CDM
• IEC 61000-4-2 ESD (B-port): ±8kV Contact Discharge, ±6kV Air Discharge

Applications:

• Handsets
• Smartphones
• Tablets
• Desktop PCs

Package:

• PW (TSSOP, 20)
• RGY (VQFN, 20)
• DGS (VSSOP, 20)
• RKS (VQFN, 20)
• ZXY (UFBGA, 20)
• NME (NFBGA, 20)

• No direction-control signal needed
• Maximum data rates:
• -110Mbps (push pull)
• -1.2Mbps (open drain)
• 1.4V to 3.6V on A port and 1.65V to 5.5V on B port (VCCA ≤ VCCB)
• No power-supply sequencing required - either VCCA or VCCB can be ramped first
• Latch-up performance exceeds 100mA per JESD 78, class II
• ESD protection exceeds JESD 22 (A port):
• -2000 V Human Body Model (A114-B)
• -150 V Machine Model (A115-A)
• -1000 V Charged-Device Model (C101)
• IEC 61000-4-2 ESD (B-port):
• -± 8kV Contact Discharge
• -± 6kV Air Discharge

• Handsets
• Smartphones
• Tablets
• Desktop PCs

Figure 4-1. ZXY Package, 20 BUMP (Bottom View)

Figure 4-2. NME Package, 20 BGA (Bottom View)

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

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

• (2) The input and output negative Voltage ratings may be exceeded if the input and output current ratings are observed.
• (3) The value of VCCA and VCCB are provided in the recommended operating conditions table.

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

The TXS0108E can be used in level-translation applications for interfacing devices or systems operating at different interface voltages with one another. The device is an excellent choice for use in applications where an open-drain driver is connected to the data I/Os. The device is appropriate for applications where a push-pull driver is connected to the data I/Os, but the TXB0104 device, 4-Bit Bidirectional Voltage-Level Translator might be a better option for such push-pull applications. The device is a semi-buffered auto-direction-sensing voltage translator design is optimized for translation applications (for example, MMC Card Interfaces) that require the system to start out in a low-speed open-drain mode and then switch to a higher speed push-pull mode.

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