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Microchip Technology AT49BV160D-70TU
- Part No.:
- AT49BV160D-70TU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV160D-70TU.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,028
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Product details
Overview
AT49BV160D-70TU from Microchip Technology (formerly Atmel) is a 16-Mbit (1,048,576 × 16) single-supply Flash memory IC designed for embedded code storage and data logging in microcontroller-based systems. It operates at 2.65–3.6 V, delivers 70 ns access time, supports sector erase with 31 × 64 KB + 8 × 8 KB sectors, and features suspend/resume for concurrent read/program during erase - enabling real-time firmware updates in industrial controllers.
For engineers reviewing the AT49BV160D-70TU datasheet, AT49BV160D-70TU pinout, AT49BV160D-70TU application, or AT49BV160D-70TU equivalent, key selection criteria include its TSOP-48 package compatibility, CFI-compliant interface for auto-configuration, flexible Softlock/Hardlock sector protection, 100,000 erase cycles, and dual-word programming acceleration via VPP = 10.0 V.
Technical Context
This parallel-interface NOR Flash implements a command-set-driven Write State Machine (WSM) that manages program, erase, suspend, and status reporting without external timing control. Its architecture includes dedicated status register bits (SR7–SR0) for real-time monitoring of WSM readiness, program/erase success/failure, VPP level detection, and sector lock status - all readable via I/O7–I/O0 with CE/OE toggling.
The device integrates hardware-level data protection through VPP-dependent program/erase enablement (VPP < 0.4 V inhibits operations), VCC sense (program inhibited if VCC < 1.8 V), and dual-sector protection modes: Softlock (software-unlockable) and Hardlock (WP-pin-gated). Sector addressing uses A0–A19, with SA0–SA38 mapped to specific address ranges per the Sector Address Table.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 words × 16 bits); supports boot code and application firmware storage in resource-constrained MCUs. |
| Access Time | 70 ns; enables direct execution (XIP) from Flash in systems with ≤14 MHz bus timing budgets. |
| Supply Voltage | 2.65 V to 3.6 V; compatible with 3.3 V logic domains without level shifters. |
| Program Time | 10 µs per word; allows rapid field updates of configuration tables or calibration data. |
| Erase Time | 100 ms per sector; predictable timing for deterministic firmware update sequences. |
| Erase Endurance | ≥100,000 cycles; suitable for applications requiring frequent parameter rewrites over 10+ years. |
| CFI Support | Yes; enables automatic driver initialization and runtime identification of geometry, timings, and command sets. |
| Protection Register | 128-bit (64-bit factory + 64-bit user); provides secure storage for keys or serial numbers with lockable user sector. |
Pinout & Package
AT49BV160D-70TU is packaged in a 48-lead TSOP Type I (Thin Small Outline Package) with 0.5 mm pitch, pin-compatible with industry-standard 48-pin Flash sockets. The package supports surface-mount assembly and thermal performance suitable for industrial temperature range operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A0–A19 required for sector selection and word-level access. |
| I/O0–I/O15 | Data Inputs/Outputs | 16-bit bidirectional data bus; latched on WE/CE rising edge during command or data cycles. |
| CE | Chip Enable | Active-low chip select; must be low with OE low and WE high for read mode; prevents bus contention in multi-device systems. |
| OE | Output Enable | Active-low output control; places I/O pins in high-impedance state when high, enabling shared bus operation. |
| WE | Write Enable | Active-low write strobe; latches address/data on rising edge; controls command entry and programming timing. |
| VPP | Programming Voltage | Enables program/erase when ≥1.65 V; inhibits operations when <0.4 V; accelerates dual-word programming at 10.0 V. |
| WP | Write Protect Input | Gates Hardlock sector unlock capability; low = Hardlocked sectors permanently read-only; high = unlock permitted. |
| RESET | Device Reset | Active-low input that halts ongoing operations and forces return to read mode on deassertion. |
| VCCQ | Output Power Supply | Separate 2.65–3.6 V supply for I/O drivers; ensures clean output levels independent of core VCC noise. |
| NC | No Connect | Two pins (TSOP pins 9 and 10) are unconnected; must be left floating or tied to ground per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Suspend/Resume for Erase & Program | Allows reading or programming any non-erasing sector while erase is suspended - critical for real-time OS interrupt handling during firmware updates. |
| Flexible Sector Protection | Independent Softlock (software-unlockable) and Hardlock (WP-gated) per sector - enables secure bootloader regions and field-updatable application partitions. |
| Common Flash Interface (CFI) | Standardized query table accessible via 98h command - eliminates hard-coded driver dependencies and enables plug-and-play flash replacement. |
| 128-bit Protection Register | Factory-programmed 64-bit ID + user-programmable 64-bit lockable sector - supports device authentication and secure parameter storage. |
| Dual-Word Programming Acceleration | Reduces programming time by ~50% when VPP = 10.0 V and adjacent addresses differ only in A0 - optimized for manufacturing line throughput. |
| Hardware Data Protection | VCC sense, VPP validation, and control signal gating prevent spurious writes during power ramp-up or brownout - improves system reliability in harsh environments. |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Logging |
|---|---|
|
Use Scenario: Storing ladder logic programs and I/O mapping tables in programmable logic controllers subject to frequent field updates and EMI-rich factory floors. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable 70 ns access; sector-protected bootloader region prevents corruption during partial firmware upgrades. Use Value: Suspend/resume enables background diagnostics during firmware download; 100,000 erase cycles support >10 years of daily updates. |
Use Scenario: Recording calibration coefficients, usage logs, and regulatory audit trails in portable diagnostic equipment with battery-backed operation. IC Role / Device Role / Timing Role: Parameter storage with Hardlock-protected calibration sector and Softlock-enabled log sector - ensuring traceability and tamper resistance. Use Value: 128-bit protection register stores unique device IDs; low 15 µA standby current extends battery life between maintenance cycles. |
| Automotive Infotainment Bootloader | Network Router Firmware Image Storage |
|
Use Scenario: Hosting secure boot code and fail-safe recovery images in automotive head units requiring ASIL-B compliance and anti-rollback protection. IC Role / Device Role / Timing Role: Dual-boot image storage with top/bottom boot block configuration; CFI enables dynamic driver loading for multiple MCU platforms. Use Value: VPP-dependent write enable prevents accidental corruption during cold cranking voltage dips; sector lock status detectable via I/O0/I/O1 reads. |
Use Scenario: Storing primary and backup firmware images in enterprise-grade routers requiring zero-downtime upgrades and rollback capability. IC Role / Device Role / Timing Role: Dual-image partitioning using 31 × 64 KB sectors; suspend/resume allows active traffic forwarding while updating secondary image. Use Value: 10 µs word program time enables sub-second configuration commits; WP pin hardens boot sector against remote exploit attempts. |
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 | Same density (16 Mbit × 16), 70 ns access, TSOP-48, but lacks CFI and 128-bit protection register; uses different command set. | No auto-configuration support; requires custom driver integration; no hardware-secured ID storage. | Choose when legacy SST39VF driver stack is already deployed and CFI/protection register are unnecessary. |
| MX29LV160ETTI-70G | 16 Mbit × 16, 70 ns, TSOP-48, supports CFI and sector protection, but only 100K erase cycles and no VPP-accelerated programming. | Lacks dual-word acceleration and 128-bit register; VPP pin absent - relies solely on software write protection. | Prefer for cost-sensitive designs where VPP complexity is undesirable and 100K cycles meet lifetime requirements. |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160ETTI-70G, the AT49BV160D-70TU uniquely combines CFI, VPP-accelerated programming, and a factory-programmed 128-bit protection register - making it optimal for secure, auto-configurable, high-reliability embedded firmware storage where upgrade flexibility and tamper resistance are mandatory.
Availability
AT49BV160D-70TU is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostic devices, automotive infotainment systems, and network infrastructure equipment requiring stable component supply across long product lifecycles.
Supply support for AT49BV160D-70TU 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
Microchip Technology acquired Atmel in 2016 and maintains full support for the AT49BV series of parallel NOR Flash memories, emphasizing reliability, longevity, and industrial-grade qualification.
The AT49BV160D-70TU belongs to Microchip's legacy parallel-interface Flash product line, engineered for embedded systems requiring deterministic timing, sector-level data integrity, and in-system programmability without external high-voltage generators.
FAQ
What is the operating voltage range for the AT49BV160D-70TU?
The AT49BV160D-70TU operates from 2.65 V to 3.6 V on VCC and VCCQ. This single-supply range eliminates need for separate core/I/O rails. VPP must be ≥1.65 V for normal program/erase, and 10.0 V for accelerated dual-word programming. Operation below 2.65 V risks data corruption due to internal VCC sense disabling writes.
How does the AT49BV160D-70TU handle sector protection?
The AT49BV160D-70TU implements two independent sector protection modes: Softlock (software-unlockable via 60h/D0h command) and Hardlock (WP-pin-gated, enabled via 60h/2Fh). At power-up, all sectors default to Softlock. Hardlock cannot be overridden unless WP is high, and requires reset to disable - providing layered security for bootloader and calibration data.
Can the AT49BV160D-70TU be used in systems requiring real-time operation during firmware updates?
Yes. The AT49BV160D-70TU supports Erase Suspend and Program Suspend commands (B0h/D0h), allowing interruption of erase/program operations to read or write other sectors. After suspension, reads complete within 15 µs (erase) or 10 µs (program), enabling deterministic response to interrupts during field updates - essential for RTOS-based applications.
What is the purpose of the VPP pin on the AT49BV160D-70TU?
The VPP pin on the AT49BV160D-70TU serves dual roles: (1) write enable/disable - operations are inhibited if VPP < 0.4 V, enabled if ≥1.65 V; (2) programming acceleration - applying 10.0 V enables dual-word programming, cutting word-program time by ~50%. VPP must never be left floating and requires stable decoupling.
Does the AT49BV160D-70TU support automatic device identification in software?
Yes. The AT49BV160D-70TU implements the Common Flash Interface (CFI) standard. Issuing the 98h command enters CFI Query mode, allowing host software to read standardized tables at defined addresses to determine geometry, timings, command sets, and manufacturer/device IDs - enabling driver portability across flash vendors.
AT49BV160D-70TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- 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:
- 120µs
- 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:
- 48-TSOP
AT49BV160D-70TU FAQ
1.How can I place an order for AT49BV160D-70TU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV160D-70TU 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 AT49BV160D-70TU reliable?
The price and inventory of AT49BV160D-70TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV160D-70TU is usually 5 days.
3.What payment methods are accepted for AT49BV160D-70TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV160D-70TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV160D-70TU?
AT49BV160D-70TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV160D-70TU 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 AT49BV160D-70TU?
For technical support, including AT49BV160D-70TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV160D-70TU requirements.
6.How does Aetrix verify that AT49BV160D-70TU is sourced from the original manufacturer or authorized distributors?
All AT49BV160D-70TU 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 AT49BV160D-70TU meets industry standards.
7.What is the process for return or replacement of AT49BV160D-70TU?
All AT49BV160D-70TU units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV160D-70TU, 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 AT49BV160D-70TU part is unused and in its original packaging.
Return procedure for AT49BV160D-70TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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