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PI6ULS5V9627A

Level Translating Fast-Mode Plus I2C Bus/SMBus Repeater

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Product Description

The PI6ULS5V9627A is a CMOS integrated circuit intended for Fast-mode Plus (Fm+) I2C-bus or SMBus applications. It can provide level shifting between low voltage (down to 0.6V) and higher voltage (2.2V to 5.5V) in mixed-mode applications.

The PI6ULS5V9627A enables the system designer to isolate two halves of a bus for both voltage and capacitance, accommodating more I2C devices or longer trace length. It also permits extension of the I2C-bus by providing bidirectional buffering for both the data (SDA) and the clock (SCL) lines, thus enabling two buses of 540 pF at 1 MHz or up to 4000 pF at lower speeds. The SDA and SCL pins are overvoltage tolerant and are high-impedance when the PI6ULS5V9627A is unpowered.

The 2.2V to 5.5V bus port B drivers have the static level offset, while the adjustable voltage bus port A drivers eliminate the static offset voltage. This results in a LOW on the port B translating into a nearly 0V LOW on the port A which accommodates the smaller voltage swings of lower voltage logic. The EN pin is referenced to VCC(B) and can also be used to turn the drivers on and off under system control.

Features

  • 4 channel, bidirectional buffer isolates capacitance and allows 540pF on either side of the device at 1 MHz and up to 4000 pF at lower speeds
  • Voltage level translation from 0.6V to 5.5V and from 2.2V to 5.5V
  • Port A operating supply voltage range of 0.6V to 5.5V with normal levels( 0.4VCC(A) + 0.8 V ≤ VCC(B) )
  • Port B operating supply voltage range of 2.2V to 5.5V with static offset level
  • 5V tolerant I2C-bus and enable pins
  • 0 Hz to 1 MHz clock frequency (the maximum system operating frequency may be less than 1MHz because of the delays added by the repeater)
  • Active HIGH repeater enable input referenced to VCC(B)
  • Open-drain input/outputs
  • Latching free operation
  • Supports arbitration and clock stretching across the repeater
  • Accommodates Standard-mode, Fast-mode and Fast-mode Plus I2C-bus devices, SMBus (standard and high power mode), PMBus and multiple masters
  • Powered-off high-impedance I2C-bus pins
  • ESD protection exceeds 8000V HBM per JESD22- A114
  • Package: TQFN-16L 4x4 and QSOP-16L

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Translation From (V) 0.6 to 5.5
Translation To (V) 2.2 to 5.5
Max Signal Rate 1MHz
Bits Needed 4
Auto Direction Sensing? Yes
Shift Bi-Directional
Prop Delay N/A
Ambient or Junction Temperature (°C) -40 to 85

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

Request Documents
Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
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Request Samples
Qty. Carrier
PI6ULS5V9627AQE Active QSOP-16 GREEN 97 TUBE Contact Sales Request Sample
PI6ULS5V9627AQEX Active QSOP-16 GREEN 2500 T&R Contact Sales Request Sample
PI6ULS5V9627AZYEX Active W-QFN4040-16 GREEN 5000 T&R Contact Sales Request Sample

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free

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