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Technical content

Features

„ 4-Bit Bidirectional Translator for Open Drain and Push-Pull Bus Applications „ I2C and SMBus Compatible „ Less than 1.5ns Maximum Propagation Delay to Accommodate Standard-Mode and Fast-Model I 2C Devices and Multiple Masters „ Allows Voltage-Level Translator Between Š 1.8V VCCA and 2.5V, 3.3V, 5V VCCB Š 2.5V VCCA and 3.3V, 5V VCCB Š 3.3V VCCA and 5V VCCB Š VCCA ≦ V CCB „ Provides Bidirectional Voltage Translation without Direction Pin „ Max Data Rates Š 24Mbps for Push Pull Š Over 1.3Mbps for Open Drain „ Low 3.5 Ω ON-State Connection Between Input and Output Ports Provides Less Signal Distortion „ Open-Drain I2C I/O Ports „ 5V Tolerant I 2C I/O Ports to Support Mixed Mode Signal Operation „ High Impedance AN and BN Pins for OE=Low „ Lock-up-Free Operation for Isolation When OE=Low „ IEC 61000-4-2 Level 4 (±8kV Contact Discharge and ±15kV Air-gap Discharge) ESD Protection for pins B1, B2, B3, B4, OE and VCCB. 2kV HBM IEC61340-3-1 Protection for All Other Pins. General Description The G3402 is a qual bidirectional I 2C and SMBUS voltage-level translator with an output enable (OE) input, and is operational from 1.2V to 3.3V V CCA and 2.5V to 5.5V VCCB. It allows bidirectional voltage trans- lations between 1.2V and 5V, without use of direc- tional pin. The low ON-state resistance (r ON) of the switch ensures the connections to be with minimal propagation delay. When OE is high, the translator switch is ON, and the A N I/O are connected to the B N I/O, respectively, allowing bidirectional data flow be- tween ports. When OE is low, the translator switch is off, and a high-impedance exists between ports. Pull-up resistors are included on input and output lines internally to provide the logic high levels on the trans- lator’s bus. The size of the pull-up resistors are 10k Ω, and is allowed to use lower pull-up resistor value to minimal 1kΩ by adding external resistor. All channels have the same electrical characteristics, and there is minimal deviation from one output to an- other in voltage or propagation delay. This is a benefit over discrete translation solutions, since the fabrica- tion of the switch is symmetrical.

Ordering Information

NUMBER MARKING TEMP. RANGE PACKAGE (Green) G3402B51U 3402 -40 °C to 85°C WLCSP3X4-12 G3402B51D 3402 -40 °C to 85°C WLCSP3X4-12 Note: B5: WLCSP3X4-12 1: Bonding Code U & D: Tape & Reel Pin Configuration VCCB VCCA OE GND A B C D 32 1 Bottom View WLCSP3X4-12

12 Bump WLCSP

A B C D 32 1 Bottom View WLCSP3X4-12