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Product Overview
The BQ2201PN from Texas Instruments is a nonvolatile SRAM controller designed to provide battery backup and memory protection for SRAM modules. It integrates power-fail detection, battery switchover, and write protection in a compact 8-pin PDIP package. The device ensures data retention during power loss by automatically switching to a backup battery and asserting chip-enable (CE) inhibit to prevent spurious writes. Ideal for industrial and telecom applications requiring reliable data storage.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
3.0V to 3.6V (3.3V typical) or 5V ±10% |
| Backup Battery Voltage |
2.0V to 3.6V |
| Operating Temperature |
-40°C to +85°C |
| Package |
8-PDIP |
| Quiescent Current (VCC) |
1.5 mA typical |
| Battery Backup Current |
1 µA typical |
| CE Access Time |
150 ns max |
| Power-Fail Detection Threshold |
4.5V (5V supply) or 2.7V (3.3V supply) |
Key Features
- Automatic battery switchover on power failure
- Low battery backup current (1 µA) extends battery life
- Write protection via CE inhibit during power transitions
- Precision power-fail detection with hysteresis
- Compatible with 3.3V and 5V SRAMs
- 8-pin PDIP package for easy through-hole mounting
Target Applications
- 5G base station configuration memory
- Industrial PLC (Programmable Logic Controller) data logging
- Automotive dashboard event recorders
- Medical device parameter storage
- Smart grid meter data retention
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
BQ2201PN. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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BOM Kitting & Sampling Services: Specialized sourcing for
testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
BQ2201PN 是德州儀器推出的非易失性 SRAM 控制器,專為 SRAM 模組提供電池備份和存儲保護。它集成了電源故障檢測、電池切換和寫保護功能,採用緊湊的 8 引腳 PDIP 封裝。在電源中斷時,器件自動切換到備用電池並禁止片選(CE)信號以防止誤寫,確保數據可靠保存。適用於需要可靠數據存儲的工業和電信應用。
詳細技術參數
| 參數 |
數值 |
| 供電電壓 (VCC) |
3.0V 至 3.6V(典型 3.3V)或 5V ±10% |
| 備用電池電壓 |
2.0V 至 3.6V |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
8-PDIP |
| 靜態電流 (VCC) |
典型 1.5 mA |
| 電池備份電流 |
典型 1 µA |
| CE 訪問時間 |
最大 150 ns |
| 電源故障檢測閾值 |
4.5V(5V 供電)或 2.7V(3.3V 供電) |
核心特性
- 電源故障時自動切換到備用電池
- 低電池備份電流(1 µA)延長電池壽命
- 電源轉換期間通過 CE 禁止實現寫保護
- 精確的電源故障檢測帶滯回
- 兼容 3.3V 和 5V SRAM
- 8 引腳 PDIP 封裝,便於通孔安裝
典型應用場景
- 5G 基站配置存儲
- 工業 PLC 數據記錄
- 汽車儀表板事件記錄器
- 醫療設備參數存儲
- 智能電網電表數據保留
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 BQ2201PN 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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全天候環球客戶支援:專業團隊為您提供即時報價及技術支援,無需漫長等待。
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現貨庫存,即日發貨:確保現貨充足。下午 4 點前確認訂單,即可安排當天寄出。
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Escrow 擔保交易:支援 Escrow.com 平台交易,保障買賣雙方權益,小批量訂單亦可安心在線下單。
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BOM 配單與樣板服務:提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。
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Jasin Chip 承諾所有出貨產品均為原廠正貨,具備完善的品質保證及產品可追溯性。
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100% 原廠正貨:承諾所有供應零件均為原裝現貨,品質嚴格把關,來源清晰可追溯。
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原廠封裝保護:嚴格保留原廠原始包裝及封條,確保物流過程中的靜電防護 (ESD) 與物理安全。
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