CG8084AA - NVRAM Non-Volatile SRAM | Infineon Technologies
部品番号: CG8084AA ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
CG8084AA 概要
An NVRAM (non-volatile random-access memory) is a type of semiconductor memory that retains stored information when power is removed, sitting within the broader memory IC hierarchy alongside SRAM, DRAM, EEPROM, and flash memory. Unlike EEPROM or flash, NVRAM based on non-volatile SRAM technology offers the byte-writable, unlimited-endurance read/write behavior of static RAM while preserving contents during power loss, which is why NVRAM parts are historically used in industrial controllers, medical equipment, and networking hardware where configuration data must survive outages.
Key characteristics of the CG8084AA include its classification as a Non Volatile SRAM, its Cypress Semiconductor design heritage, and its availability through authorized distributors such as Mouser, TrustedParts, and Findchips. Detailed electrical parameters including supply voltage range, access time, organization, and package type require confirmation from the manufacturer datasheet.
Because the CG8084AA serves legacy sockets in long-lifecycle equipment, sourcing is typically driven by obsolescence risk management: authorized distributor stock is limited, and independent distributors such as PCB Electronics Supply Chain and TRX Electronics list the part. Engineers designing-in this device today should verify lifecycle status with Infineon and plan a qualified alternative strategy.
Design considerations for NVRAM deployments include observing write-cycle timing, ensuring proper power-fail detection thresholds, and verifying bus compatibility with the host controller. Because device-specific parameters such as access time and organization are not published in the data available for this page, all such values must be taken from the official datasheet before design-in.
This page synthesizes distributor availability, pricing sources, and sourcing guidance for the CG8084AA that are not consolidated in any single manufacturer document, including cross-distributor stock references and obsolescence-management context useful for legacy-system buyers.
ドロップイン代替品: CG8084AA — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストCG8084AA 最大定格＆電気的特性
| メモリタイプ | NVRAM (Non-Volatile SRAM) |
| Product Family | Non Volatile SRAMs |
| Original Manufacturer | Cypress Semiconductor |
| Current Manufacturer | Infineon Technologies |
CG8084AA standard ピン配置ガイド
CG8084AA (standard パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: CG8084AA.
詳細は データシート をご参照ください。
主な用途
CG8084AA の用途: 6 件s: Industrial Controller Configuration Storage, Medical Equipment Legacy Maintenance, Networking Hardware Backup Memory, Automotive Diagnostic Equipment Repair, Test and Measurement Instrument Spares, Building Automation and Energy Metering Retrofits.
Industrial Controller Configuration Storage
Industrial controllers and PLC I/O modules historically used non-volatile SRAM like the CG8084AA to hold calibration tables, node addresses, and recipe parameters that must survive unplanned power loss without the wear-out limits of flash. The CG8084AA fits this role because its SRAM-class write behavior allows parameters to be updated at bus speed during every commissioning or tuning step, with contents retained through outages. In retrofit and repair of legacy lines, keeping the original NVRAM socket populated avoids firmware and footprint changes. Engineers should verify supply voltage and retention figures from the Infineon datasheet before reuse.
おすすめ
Medical Equipment Legacy Maintenance
Long-lifecycle medical devices such as patient monitors and infusion systems often embedded Cypress NVRAM parts to store service counters, device serials, and safety configuration. The CG8084AA is relevant for maintaining these installed bases, where regulatory recertification of a redesigned board is far more costly than sourcing the original memory. Because the non-volatile SRAM architecture writes at SRAM speed, service software can update stored fields instantly during calibration. Buyers must source through verified channels and confirm date codes, as legacy NVRAM from spot markets carries counterfeit risk in medical contexts.
おすすめ
Networking Hardware Backup Memory
Routers, switches, and telecom line cards of past generations stored MAC addresses, boot configuration, and fault logs in non-volatile SRAM so that a power cycle did not erase identity or settings. The CG8084AA matches this usage model: unlimited read/write endurance supports frequent log writes that would exhaust flash, and retention preserves data during facility outages. When repairing legacy telecom spares, the original NVRAM socket should be maintained to keep the field-replacement unit interchangeable. Consult the Infineon datasheet for access-time compatibility with the original bus timing before substitution.
おすすめ
Automotive Diagnostic Equipment Repair
Bench instruments and diagnostic testers used in automotive service occasionally rely on NVRAM to retain test profiles and license keys across power cycles. The CG8084AA serves repair scenarios for such legacy testers: its non-volatile SRAM behavior means service profiles written repeatedly during a workday do not wear the memory, and data persists when the bench is unplugged overnight. Since the part is legacy Cypress/Infineon stock, repair shops should secure a buffer quantity while authorized stock remains and validate any future substitute against the original pinout and timing on a known-good board.
おすすめ
Test and Measurement Instrument Spares
Bench multimeters, oscilloscopes, and calibration sources from earlier product generations used NVRAM to store calibration constants and instrument state. The CG8084AA is a fit for calibrating and repairing such instruments: losing calibration memory on an older DMM would otherwise force a full factory recalibration, so preserving the NVRAM contents and replacing like-for-like is standard service practice. Its SRAM-speed writes let calibration routines save correction factors instantly. Always verify the exact organization and package from the official Infineon/Cypress datasheet, since NVRAM family members differ in capacity and pinout.
おすすめ
Building Automation and Energy Metering Retrofits
Energy meters, HVAC controllers, and building automation nodes built in the NVRAM era stored tariff tables, running totals, and commissioning data in non-volatile SRAM so billing data survived outages without battery maintenance. The CG8084AA supports retrofit of these installations: its unlimited-endurance byte writes accommodate constantly accumulating register values, and retention eliminates the lithium cells that would otherwise require scheduled replacement across a building's device fleet. For extended service life, confirm data retention duration and power-fail threshold from the manufacturer datasheet, and purchase sufficient stock given the part's legacy sourcing status.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: CG8084AA — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 |
|---|---|
| Brand | Infineon Technologies (originally Cypress Semiconductor) |
| Memory Type | NVRAM (Non-Volatile SRAM) |
| Lifecycle Status | Legacy / end-of-life (verify with Infineon) |
主な差別化要因
- SRAM-speed byte writes with non-volatile retention （vs EEPROM devices of the same era)
- No battery-backup subsystem required （vs Standard SRAM plus lithium cell)
- Cypress design heritage under Infineon support （vs Unbranded legacy stock from spot markets)
設計ノート
Do not substitute any other non-volatile SRAM into a CG8084AA socket without pin-to-pin verification against the official Infineon/Cypress datasheet. NVRAM family members from the same era differ in organization, access time, and power-fail detection thresholds, and a mismatched power-fail threshold can corrupt data during brownouts. Board-level validation on known-good hardware is mandatory before committing a substitute, and content from the original device should be read out and preserved before removal.
Non-volatile SRAM devices of this class rely on proper power-supply supervision: ensure the host board's power-fail detection asserts write-protect early enough in the supply decay curve that no partial write occurs. Add a decoupling capacitor close to the device supply pin and verify the supply rail rise/fall behavior against the datasheet thresholds. Because device-specific voltage ratings for the CG8084AA are not published in this page's data, all power design values must be confirmed from the manufacturer datasheet.
For legacy-board repair, avoid disturbing the original land pattern: legacy NVRAM footprints may predate modern land-pattern standards, and cleaning or reflowing aged pads requires careful temperature control. If the device must be replaced, use lowest-possible reflow temperatures or hand-soldering with hot air below the board's component tolerance, inspect pin fillets under magnification, and verify the replacement stores and reads data correctly across at least one complete power cycle.
コンプライアンス情報
Compliance declarations were not included in the retrieved distributor data; verify RoHS/REACH status on the Infineon product page or Mouser compliance documentation before design-in.
