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1 Features 2 Applications
1• Two-Channel Bidirectional I
2C Buffer • Servers
• Support for Standard Mode, Fast Mode (400 kHz), • Routers (Telecom Switching Equipment)
and Fast Mode+ (1 Mhz) I
2C Operation • Industrial Equipment
• Operating Supply Voltage Range of 0.8 V to 5.5 V • Products With Many I
2C Slaves and/or Long PCB
on A-Side Traces
• Operating Supply Voltage Range of 2.2 V to 5.5 V
on B-Side 3 Description
• Voltage-Level Translation From 0.8 V to 5.5 V and The TCA9617A is a BiCMOS dual bidirectional buffer
intended for I
2
2.2 V to 5.5 V C bus and SMBus systems. It can
provide bidirectional voltage-level translation (up-
• Footprint and Function Replacement for TCA9517 translation and down-translation) between low
• Active-High Repeater-Enable Input voltages (down to 0.8 V) and higher voltages (2.2 V
• Open-Drain I to 5.5 V) in mixed-mode applications. This device 2C I/O
enables I
2C and similar bus systems to be extended, • 5.5-V Tolerant I
2C and Enable Input Support without degradation of performance even during level
• Mixed-Mode Signal Operation shifting.
• Lockup-Free Operation The TCA9617A buffers both the serial data (SDA)
• Support for Clock Stretching and Multiple Master and the serial clock (SCL) signals on the I
2C bus,
Arbitration Across The Device allowing two buses of 550-pF or greater bus
capacitance to be connected in an I
2
• Latch-Up Performance Exceeds 100 mA Per C application.
JESD 78, Class This device can also be used to isolate two halves of II
a bus for voltage and capacitance.
• ESD Protection Exceeds JESD 22
– 4000-V Human-Body Model (A114-A) Device Information(1)
– 1500-V Charged-Device Model (C101) PART NUMBER PACKAGE BODY SIZE (NOM)
TCA9617A VSSOP (8) 3.00 mm × 3.00 mm
VSSOP-8
- 40 C to + 85 C
2 Channel
5.7 mA