Ultra Low Power Embedded SRAM - TSMC 22ULL

Overview

PowerMiserTM is the ideal single-port synchronous low-power SRAM IP for energy efficient SoC systems in a wide range of market applications.

It reduces dynamic power by up to 50% and static/leakage power by up
to 20% compared to foundry and other SRAM solutions. It delivers these
savings across the full process, voltage and temperature range.
PowerMiser is available for 28nm, 22nm process node designs and scales
down to 16nm and 7nm FinFET

sureCore achieves best-in-class power savings by augmenting standard
foundry memory bit cells with its innovative, patented architecture,
powerful compiler technology and a set of industry standard sleep modes.
Product development includes the implementation and execution of
a comprehensive verifi cation and characterization strategy.

Key Features

  • Single port, single voltage rail synchronous SRAM
  • Hierarchical Bit Line – subdividing the array into columns/ rows, banks and local blocks.
  • Configurable mux factor sets column length and overall aspect ratio
  • Bit Line Voltage control eliminates potential low operating voltages issues
  • Enable only required local block word line and bit line drivers
  • SVT, HVT, UHVT periphery
  • Operating voltage: 0.9V +/-10% in 28nm, 0.8v +/-10% in 22nm
  • Retention voltage: 0.55V in 28FDSOI, 0.63V in 28HPC+, 0.6V in 22ULL
  • Configurable word length, up to 144 bits
  • Configurable 32 or 64 bit lines
  • Programmable sleep modes: Light Sleep, Deep Sleep (data retention), Shutdown
  • 576Kbit max instance size. Configurable – 4Kx144, 8KX72, 16Kx36
  • APTG and BIST support
  • Supports industry standard EDA design flows

Benefits

  • Over 50% dynamic power savings
  • Over 20% static power savings
  • Standard and low leakage versions
  • Up to 575MHz 28nm high performance

Block Diagram

Ultra Low Power Embedded SRAM - TSMC 22ULL Block Diagram

Applications

  • IoT – ‘fit and forget, low voltage, low standby power
  • AI Edge/Augmented Reality – large SRAM arrays, low latency, high performance
  • Networks – extensible, low dynamic power
  • Hearables – ultra low power

Technical Specifications

Foundry, Node
TSMC 22 ULL
TSMC
Pre-Silicon: 22nm
×
Semiconductor IP