ReRAM NVM in SkyWater 130nm

Overview

Weebit Resistive RAM (ReRAM) is a new type of Non-Volatile Memory (NVM) that is designed to be the successor to flash memory. The ReRAM IP can provide a high level of differentiation for System-on-Chip (SoC) designs, with performance, power, cost, security, environmental, and a range of additional advantages compared to flash and other NVMs.

The vendor’s first ReRAM IP product is available now in SkyWater Technology’s 130nm CMOS process (S130). The technology is fully qualified, available for integration in SkyWater’s users’ SoCs, and ready for production.

Getting Started

Weebit ReRAM IP is delivered as an embedded module with a complete set of collateral and EDA views to enable smooth integration by SoC architects using state-of-the-art EDA tools. Upon request, the module is available as part of a complete subsystem including a RISC-V microcontroller (MCU), system interfaces, Static Random-Access Memory (SRAM), and peripherals.

Weebit ReRAM technology is highly scalable and customizable by storage capacity, foundry, and process node. In addition to being available in SkyWater’s 130nm CMOS process, the technology is fully qualified in 130nm in CEA-Leti’s state-of-the-art fab. It has also been proven in 28nm and taped-out in an advanced 22nm FD-SOI process.

Specifications

Technology 130nm, SkyWater S130
Mask Adder 2
Supply Voltage 1.8V Read, 1.8V+3.3/3.6V Program
Read Access Time <20nsec
Operation Temp. -40°C - 125°C (can be extended to -55°C)
Capacity 256 Kbit (can be customized for 128Kbit - 2Mbit)
Data Bus Width (Read) 32-bit (can be customized to 16-bit to 128-bit)
System Interface APB (can be customized AHB / AXI / OBI / QSPI)
Endurance (Write cycles) 10K
Data Retention ≥10 years @125°C

Key Features

  • High write endurance, supporting applications with frequent memory updates
  • Excellent data retention, including at high temperatures
  • Ultra-low power consumption, including standby power
  • Fast access time for quick bootup
  • Fast programming, byteaddressable
  • Tolerant to ionizing radiation and electromagnetic interference
  • Inherently secure technology, deeply embedded between two metal layers

Benefits

  • Excellent endurance and retention even at high temperatures
  • Ultra-low power consumption
  • Tolerant to ionizing radiation and electromagnetic interference
  • Inherently secure technology, deeply embedded between 2 metal layers

Block Diagram

ReRAM NVM in SkyWater 130nm Block Diagram

Applications

  • Analog, power management, mixed-signal designs
  • IoT, industrial, automotive
  • Radiation tolerant designs
  • Heterogenous computing
  • Data logging applications

Deliverables

  • Data sheet
  • Integration guide
  • Memory map
  • Verilog model
  • LEF
  • CDL
  • Timing constraints

Technical Specifications

Foundry, Node
ASIC, Foundry node SkyWater 130nm
Maturity
Silicon proven
Availability
Now
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Semiconductor IP