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Microchip Technology AT49BV160S-70CU
- Part No.:
- AT49BV160S-70CU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 64-VBGA, CSPBGA
- Datasheet:
-
AT49BV160S-70CU.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 64CBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,843
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Product details
Overview
AT49BV160S-70CU from Atmel is a 16-Mbit (1M × 16) single-supply 2.7V Flash memory with 70 ns access time, sector erase architecture (31 × 64KB + 8 × 8KB sectors), and secure lock/freeze features for firmware protection in embedded boot applications. It supports in-system programming and operates across 2.65–3.6V.
For engineers reviewing the AT49BV160S-70CU datasheet, AT49BV160S-70CU pinout, AT49BV160S-70CU application, or AT49BV160S-70CU equivalent, key selection considerations include sector protection granularity, suspend/resume capability during erase/program, CFI compliance, CBGA package compatibility, and VPP-assisted accelerated programming.
Technical Context
The AT49BV160S-70CU implements a dual-sector architecture with 39 independently erasable sectors: thirty-one 64KB (32K-word) and eight 8KB (4K-word) sectors. Its secure lock mechanism permanently disables write/erase on selected sectors, and the freeze feature irreversibly locks the secure status configuration.
It uses standard parallel Flash interface signals (CE/OE/WE), supports Common Flash Interface (CFI) query mode for host auto-detection, and integrates VPP pin functionality for both write protection and accelerated program operations - all within a single 2.65–3.6V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit words) |
| Access Time | 70 ns - determines maximum read throughput in high-speed microcontroller boot fetch paths |
| Supply Voltage | 2.65–3.6V - enables direct interfacing with 3.3V logic without level-shifting |
| Sector Erase | 31 × 64KB + 8 × 8KB sectors - allows fine-grained firmware update and protected bootloader partitioning |
| Program Time | 10 µs per word - supports fast field firmware patching without extended downtime |
| Erase Endurance | 100,000 cycles - ensures long-term reliability in industrial firmware update cycles |
| Standby Current | 15 µA - minimizes power draw in always-on embedded systems during idle states |
Pinout & Package
AT49BV160S-70CU is housed in a 64-ball Chip-scale Ball Grid Array (CBGA) package (64C1, 9 × 10 × 1.0 mm body, 1.0 mm ball pitch), RoHS-compliant and Pb/halide-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing space |
| I/O0–I/O15 | Data Inputs/Outputs | 16-bit bidirectional data bus compatible with 16-bit microprocessor interfaces |
| CE | Chip Enable | Active-low chip select enabling memory mapping into processor address space |
| OE | Output Enable | Controls output buffer enable for read operations; avoids bus contention |
| WE | Write Enable | Controls write strobe timing for program/erase command sequences |
| VPP | Write Protection / Accelerated Program Supply | Enables hardware write lock and faster programming when driven at 11–12V (external source) |
| RESET | Device Initialization | Hardware reset input to abort ongoing operations and return to read mode |
| VCCQ | Output Power Supply | Separate 3.3V supply for I/O drivers, decoupled from core VCC for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Suspend/Resume for Erase & Program | Allows concurrent read access to one sector while erasing/programming another - critical for real-time firmware updates |
| Secure Lock + Freeze Mechanism | Permanently locks individual sectors; freeze prevents further lock activation - meets bootloader integrity requirements |
| Top/Bottom Boot Block Configuration | Configurable boot region location (AT49BV160S vs AT49BV160ST) - supports flexible system startup architecture |
| 128-bit Protection Register | Provides tamper-resistant storage for security keys or configuration flags - enhances firmware authentication capability |
| Common Flash Interface (CFI) | Enables automatic identification and parameter retrieval by host BIOS/bootloader - simplifies driver development |
Applications
| Industrial PLC Firmware Storage | Medical Device Bootloader Partition |
|---|---|
Use Scenario: Storing field-upgradable firmware and configuration data in programmable logic controllers operating in harsh EMI environments. IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic 70 ns read access for CPU instruction fetch during cold start and runtime updates. Use Value: Sector-level erase and secure lock prevent accidental overwrite of safety-critical control logic while enabling modular firmware patches. |
Use Scenario: Hosting certified bootloader code and cryptographic keys in Class II medical imaging equipment requiring regulatory traceability. IC Role / Device Role / Timing Role: Secure, tamper-resistant Flash memory with freeze-enabled permanent lock on boot sector - satisfies IEC 62304 software lifecycle requirements. Use Value: 128-bit protection register and irreversible secure lock ensure bootloader integrity against unauthorized modification or malware injection. |
| Telecom Base Station Configuration | Automotive Infotainment System BIOS |
Use Scenario: Storing carrier-specific configuration profiles and calibration tables in remote radio units with limited maintenance windows. IC Role / Device Role / Timing Role: High-reliability Flash memory supporting suspend/resume during background reprogramming without interrupting RF signal processing. Use Value: 10 µs word program time and 100,000 erase cycles enable frequent over-the-air (OTA) updates across multi-year deployments. |
Use Scenario: Holding boot firmware and recovery images in automotive head units where power loss during update must not corrupt boot code. IC Role / Device Role / Timing Role: Top/bottom boot configurable Flash with VPP-based write protection - prevents corruption during brown-out conditions. Use Value: Independent 8KB sector erase allows safe recovery image updates without affecting main OS partition, reducing risk of bricking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF1601C-70-4C-EKE | 48-pin TSOP package; no VPP pin; lacks secure lock/freeze; CFI-compatible but no 128-bit protection register | Targeted at cost-sensitive consumer electronics; unsuitable for safety-critical secure boot | Select only if board layout constraints prohibit CBGA and security features are unnecessary |
| MX29LV160ETTI-70G | 48-pin TSOP; top-boot only; no freeze feature; 100 µA standby current (vs 15 µA); same 70 ns access and sector architecture | Used in legacy industrial HMI designs; lacks irreversible lock assurance required for certification | Consider only for drop-in replacement in existing TSOP-based designs where low-power standby is non-critical |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160ETTI-70G, the AT49BV160S-70CU uniquely delivers CBGA footprint efficiency, ultra-low 15 µA standby, and hardware-enforced irreversible sector locking - making it the only option meeting stringent embedded safety and power budget requirements.
Availability
AT49BV160S-70CU is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device bootloader partitioning, and telecom base station configuration requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for AT49BV160S-70CU includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Atmel Corporation (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, Flash memory, and secure authentication ICs for embedded systems.
The AT49BV160S-70CU belongs to Atmel's secure parallel Flash memory product line, designed specifically for applications demanding certified boot integrity, field-upgradable firmware, and hardware-enforced write protection in industrial and medical environments.
FAQ
What is the operating voltage range for the AT49BV160S-70CU?
The AT49BV160S-70CU operates from 2.65V to 3.6V, enabling direct integration with standard 3.3V logic systems without external voltage translation. This single-supply operation simplifies power design and supports in-system programming without auxiliary supplies. The AT49BV160S-70CU maintains full 70 ns access time and reliable sector erase functionality across this entire voltage range.
Does the AT49BV160S-70CU support hardware write protection?
Yes, the AT49BV160S-70CU provides hardware write protection via its dedicated VPP pin, which can be held at 11–12V to disable all program and erase operations. Additionally, it supports softlock sector protection and irreversible secure lock with freeze capability - offering layered protection beyond basic VPP control. The AT49BV160S-70CU implements these features without requiring external components.
How many sectors does the AT49BV160S-70CU have, and what are their sizes?
The AT49BV160S-70CU has 39 sectors: thirty-one 64KB (32K-word) sectors and eight 8KB (4K-word) sectors. This architecture enables flexible firmware partitioning - for example, using smaller sectors for configuration data and larger ones for application code. The AT49BV160S-70CU supports independent locking and erasure of each sector, verified in the official sector address table.
Is the AT49BV160S-70CU pin-compatible with the AT49BV160ST variant?
No, the AT49BV160S-70CU and AT49BV160ST are not pin-compatible due to differing boot block configurations - the S version has bottom-boot organization while the ST version has top-boot, resulting in different sector address mappings. Although both share identical pinouts and package, their internal sector layout and secure region assignment differ fundamentally. The AT49BV160S-70CU must be used only with designs targeting bottom-boot firmware execution.
What package type is used for the AT49BV160S-70CU?
The AT49BV160S-70CU uses a 64-ball Chip-scale Ball Grid Array (CBGA) package designated 64C1, measuring 9 × 10 × 1.0 mm with 1.0 mm ball pitch. It is Pb/halide-free and RoHS compliant. This compact, thermally efficient package supports high-density PCB layouts and is validated for use in industrial temperature ranges. The AT49BV160S-70CU's CBGA footprint differs from common TSOP alternatives and requires specific reflow profile validation.
AT49BV160S-70CU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 64-VBGA, CSPBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 16Mbit
- Memory Organization:
- 1M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 70 ns
- Voltage - Supply:
- 2.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-CBGA (9x10)
AT49BV160S-70CU FAQ
1.How can I place an order for AT49BV160S-70CU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV160S-70CU on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AT49BV160S-70CU reliable?
The price and inventory of AT49BV160S-70CU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV160S-70CU is usually 5 days.
3.What payment methods are accepted for AT49BV160S-70CU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV160S-70CU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV160S-70CU?
AT49BV160S-70CU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV160S-70CU order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AT49BV160S-70CU?
For technical support, including AT49BV160S-70CU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV160S-70CU requirements.
6.How does Aetrix verify that AT49BV160S-70CU is sourced from the original manufacturer or authorized distributors?
All AT49BV160S-70CU products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AT49BV160S-70CU meets industry standards.
7.What is the process for return or replacement of AT49BV160S-70CU?
All AT49BV160S-70CU units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV160S-70CU, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AT49BV160S-70CU part is unused and in its original packaging.
Return procedure for AT49BV160S-70CU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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