Fixed data center switch

Products and reference designs

Fixed data center switch

Block diagram

Overview

Our integrated circuits and reference designs help you create data center switches with ultra-high bandwidth and low-power consumption. Use the interactive reference diagram below to design a high-speed Ethernet switch with the right interface, physical interface device (PHY) and power management products to support the connectivity needs of modern Ethernet switch fabrics.

Design requirements

Modern data center switch designs require:

  • Highly-efficient power solutions for the latest-generation FPGAs, ASICs and CPUs.
  • Best-in-class signal integrity for ever increasing data rates.
  • Reduced system downtime through detection and prevention of damaging conditions.

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Block diagram

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Fixed data center switch

JTAG JTAG AC AC -48V -48V HV DC Bus HV DC Bus N+1 PSU N+1 PSU DC/DC DC/DC IBV1 IBV1 Hot swap controller Hot swap controller AC/DC AC/DC IBV1 IBV1 FET FET Bus converter (optional) Bus converter (optional) eFuse eFuse DC/DC DC/DC IBV2 IBV2 POL power (FPGA, ASIC, merchant Si, clocks, etc.) POL power (FPGA, ASIC, merchant Si, clocks, etc.) Converter Converter LDO LDO Multiphase controller Multiphase controller Power stage Power stage CPU & memory power CPU & memory power Multiphase controller Multiphase controller Power stage Power stage Converter Converter DDR termination DDR termination Sequencing & monitoring Sequencing & monitoring Logic Logic Power on reset Power on reset Sequencer Sequencer Clocking Clocking Clock generator Clock generator Clock buffer Clock buffer Fan control Fan control Hot swap controller Hot swap controller Fan controller Fan controller Temp sense Temp sense eFuse eFuse CPU CPU CPU CPU I2C expander I2C expander I2C lvel translator I2C lvel translator Voltage translator Voltage translator Buffer Buffer Retimer/redriver Retimer/redriver DDR DDR Switch fabric Switch fabric I2C vel translator I2C vel translator I2C expander I2C expander Voltage translator Voltage translator Latch Latch CPLD CPLD BMC BMC Power on reset Power on reset Logic Logic REF REF FPGA FPGA Temp sense Temp sense VMon VMon I2C mux I2C mux Switch ASIC / merchant silicon Switch ASIC / merchant silicon Retimer/redriver Retimer/redriver Memory Memory DDR DDR Flash Flash IO (JTAG, RS232, RS485) IO (JTAG, RS232, RS485) Buffer Buffer JTAG MUX JTAG MUX RS-232 RS-232 RS-485 RS-485 ESD ESD PHY PHY LDO LDO USB USB USB load switch USB load switch ESD ESD USB mux USB mux Buck + LS Buck + LS LED driver LED driver LED driver LED driver Shift register Shift register Logic Logic Downlink (optical interface) Downlink (optical interface) Optical module Optical module Optical module Optical module Optical module Optical module PHY PHY PHY PHY PHY PHY Retimer/redriver Retimer/redriver Retimer/redriver Retimer/redriver Retimer/redriver Retimer/redriver Front port controller Front port controller eFuse eFuse Uplink (optical interface) Uplink (optical interface) Optical module Optical module Retimer Retimer eFuse eFuse Switch Switch SPI MUX SPI MUX I2C mux I2C mux

Switch fabric

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The Switch fabric subsystem contains a switch ASIC or merchant silicon device which is responsible for all main networking functions.

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Interface (15)
I2C & I3C level shifters, buffers & hubs
  • TCA9617B2-bit level-translating 1-MHz I2C/SMBus buffer/repeater with powered-off high-impedance
    Data sheet: PDF | HTML
  • TCA43072-bit bidirectional 2.3-V to 5.5-V, hot-swappable 400-kHz I2C/SMBus buffer with stuck-
    Data sheet: PDF | HTML
  • TCA9617A2-bit level-translating 1-MHz I2C/SMBus buffer/repeater
    Data sheet: PDF | HTML
  • TCA9511A2-bit bidirectional 2.3- to 5.5-V hot swappable 400-kHz I2C/SMBus buffer
    Data sheet: PDF | HTML
  • TCA39306FM+ I²C bus and SMBus voltage translator
    Data sheet: PDF | HTML
  • PCA93062-bit bidirectional 400-kHz I2C/SMBus voltage level translator
    Data sheet: PDF | HTML
I2C & I3C switches & multiplexers
  • TCA9548A8-channel 1.65- to 5.5-V I2C/SMBus switch with reset & voltage translation
    Data sheet: PDF | HTML
  • TCA9546A4-channel 1.65- to 5.5-V I2C/SMBus switch with reset & voltage translation
    Data sheet: PDF | HTML
  • TCA9545A4-channel 1.65- to 5.5-V I2C/SMBus switch with interrupt, reset & voltage translation
    Data sheet: PDF | HTML
I2C general-purpose I/Os (GPIOs)
  • TCA953916-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers
    Data sheet: PDF | HTML
  • TCA955516-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers
    Data sheet: PDF | HTML
  • TCA95548-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers
    Data sheet: PDF | HTML
  • TCA953516-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers
    Data sheet: PDF | HTML
  • TCA95388-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers
    Data sheet: PDF | HTML
  • TCA95348-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers
    Data sheet: PDF | HTML
Sensors (6)
Digital temperature sensors
  • TMP10751°C I²C temperature sensor with performance upgrades to industry standard LM75 / TMP75
    Data sheet: PDF | HTML
  • TMP4645-Channel (4-Remote and 1-Local) High-Accuracy Remote and Local Temperature Sensor
    Data sheet: PDF | HTML
  • TMP421Remote and Local Temperature Sensor with N-Factor and Series-R Correction in WCSP
    Data sheet: PDF | HTML
  • TMP451-Q1Automotive 1.7-V remote and local temp sensor with N-factor, filtering and series-R correction
    Data sheet: PDF | HTML
  • TMP432Dual Remote and Local Temp Sensor with Automatic Beta, N-Factor and Series-R Correction
    Data sheet: PDF | HTML
  • TMP751C digital temperature sensor, I2C/SMBus in industry standard LM75 form factor
    Data sheet: PDF | HTML
Logic & voltage translation (33)
D-type flip-flops
  • SN74LVC1G74Single Positive-Edge-Triggered D-Type Flip-Flop With Clear and Preset
    Data sheet: PDF | HTML
  • SN74LVC2G74Single Positive-Edge-Triggered D-Type Flip-Flop with Clear and Preset
    Data sheet: PDF | HTML
  • SN74LVC1G175Single D-Type Flip-Flop with Asynchronous Clear
    Data sheet: PDF | HTML
  • SN74AUP1G74Low-Power Single Positive-Edge-Triggered D-Type Flip-Flop
    Data sheet: PDF | HTML
  • SN74LVC74ADual positive-edge-triggered D-type flip-flops with clear and preset
    Data sheet: PDF | HTML
Direction-controlled voltage translators
Auto-direction voltage translators
  • LSF0102Dual bidirectional multivoltage level translator
    Data sheet: PDF | HTML
  • LSF0108Octal bidirectional multi-voltage-level translator
    Data sheet: PDF | HTML
  • TXS0108EEight-bit bidirectional voltage-level shifter for open-drain and push-pull applications
    Data sheet: PDF | HTML
  • LSF0101Single bi-directional multi-voltage level translator
    Data sheet: PDF | HTML
  • TXB01044-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15 kV ESD Protect
    Data sheet: PDF | HTML
  • TXB01011-Bit Bidirectional Voltage-Level Shifter With Auto Direction Sensing and +/-15-kV ESD Protect
    Data sheet: PDF | HTML
Fixed-direction voltage translators
  • SN74LV1T34Single Power Supply BUFFER Logic Level Shifter (no enable)
    Data sheet: PDF | HTML
  • SN74AUP1T17Low Power, 1.8/2.5/3.3-V In, 3.3-V CMOS Out, Single Schmitt-Trigger Buffer Gate
    Data sheet: PDF | HTML
  • SN74LV1T125Single Power Supply, Single BUFFER GATE w/ 3-State Output (active low enable)
    Data sheet: PDF | HTML
  • SN74AUP1T14Low Power, 1.8/2.5/3.3-V In, 3.3-V CMOS Out Single Schmitt-Trigger Inverter Gate
    Data sheet: PDF | HTML
AND gates
  • SN74LVC1G081-ch, 2-input 1.65-V to 5.5-V 32 mA drive strength AND gate
    Data sheet: PDF | HTML
  • SN74AHC1G091-ch, 2-input 2-V to 5.5-V high-speed (9 ns) AND gate with open-drain outputs
    Data sheet: PDF | HTML
  • SN74AUP1G081-ch, 2-input 0.8-V to 3.6-V low power (< 1uA) AND gate
    Data sheet: PDF | HTML
  • SN74LVC1G111-ch, 3-input 1.65-V to 5.5-V 32 mA drive strength AND gate
    Data sheet: PDF | HTML
  • SN74LVC2G082-ch, 2-input 1.65-V to 5.5-V 32 mA drive strength AND gate
    Data sheet: PDF | HTML
  • SN74AHC1G081-ch, 2-input 2-V to 5.5-V high-speed (9 ns) AND gate
    Data sheet: PDF | HTML
Noninverting buffers & drivers
Power management (12)
Supervisor & reset ICs
  • TLV803ELow-power voltage supervisor (reset IC) with active-low open-drain output
    Data sheet: PDF | HTML
  • TLV8093-pin voltage supervisor (reset IC) with active-low, push-pull reset
    Data sheet: PDF | HTML
  • TPS3899Nanopower supervisor with programmable sense and reset delay
    Data sheet: PDF | HTML
  • TLC77Voltage supervisor with programmable delay time
    Data sheet: PDF | HTML
  • TPS3808E600nA ultra-low quiescent current supervisor with programmable delay and manual reset
    Data sheet: PDF | HTML
  • TPS3103Ultra-low supply current, voltage supervisor with power fail input
    Data sheet: PDF | HTML
Shunt voltage references
  • LM4041CAdjustable, precision micropower shunt voltage reference with 0.5% accuracy
    Data sheet: PDF | HTML
  • LM4041-NFixed & adjustable, 45-µA, precision micropower shunt voltage reference
    Data sheet: PDF | HTML
  • LMV431A1%, low-voltage (1.24-V) adjustable precision shunt regulator
    Data sheet: PDF | HTML
  • TLV431B0.5% accuracy, low-voltage, adjustable precision shunt regulator
    Data sheet: PDF | HTML
  • LM4050-N50-ppm/°C precision micropower shunt voltage reference
    Data sheet: PDF | HTML
  • TLA431All-capacitor stable precision programmable reference with KRA pin layout
    Data sheet: PDF | HTML
  • PMP21887High-current 360-A static / 600-A peak core PMBus voltage 12-phase reference design for ASICs
    Test report: PDF Schematic: PDF

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