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ST2378E：8-Bit Level Translator with 15kV ESD Protection

The ST2378E device is an 8-bit, dual supply,bidirectional level translator with ±15 kV ESD protection on I/Os at V_CCside. It is designed to interface data transfer between low voltage ASICs/PLDs and higher voltage systems. Externally applied voltage, V_CCand V_L, set logic levels at both sides with the range specified as 1.71 V ≤ V_L≤ 5.5 V and V_L≤ V_CC≤ 5.5 V. For proper operation, V_CCshould be set higher than V_L.

Utilizing a transmission-gate-based design, this device allows bidirectional asynchronous data transfer, which means each channel is allowed to have either V_CCto V_Lor V_Lto V_CCdata transfer direction independently and no direction pin is required. The ST2378E device operates at a guaranteed data rate of 13 Mbps over the entire specified operating voltage range.

Among the other features, the OE pin allows disablemode operation whereby current consumption is reduced to less than 1 μA.

Key Features

• High speed
  • tPD = 15 ns (max.) at TA = 85 °C
  • VL = 1.8 V
  • VCC = 5.5 V
• Guaranteed data rate
  • 13 Mbps (1.8 V ≤ VL ≤ VCC ≤ 5.5 V)
• Low power dissipation
  • ITS-VL = ITS-VCC = 1 μA (max.) at TA = 85 °C
  • IQVL = 100 μA (max.) at TA = 85 °C
  • IQCC = 10 μA (max.) at TA = 85 °C
• Output impedance
  • |IOHA | = 20 μA (min.) at VL = 1.8 V; VCC = 5.5 V
  • IOLA = 1.0 μA (min.) at VL = 1.8 V; VCC = 5.5 V
• Bidirectional level translation
• Totem pole and open drain driving for I2 C communications
• 5 V tolerant on enable pin
• Wide operating voltage range
  • VL (opr.) = 1.71 V to VCC
  • VCC (opr.) = 1.71 V to 5.5 V
• ESD performance
• HBM > 15 kV ESD protection on I/O VCC lines
• Lead-free Flip-Chip and TSSOP package

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