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Microchip Technology AT49BV1614AT-90TI
- Part No.:
- AT49BV1614AT-90TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV1614AT-90TI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,633
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Product details
Overview
AT49BV1614AT-90TI from Microchip Technology (formerly Atmel) is a 16-Mbit (1M × 16 / 2M × 8) 3.3V Flash memory IC with dual-plane architecture, 70 ns access time, and sector erase capability across 39 independently lockable sectors. It supports in-system programming via single 2.65–3.3V supply and is used in embedded boot code storage for industrial controllers and network edge devices.
For engineers reviewing the AT49BV1614AT-90TI datasheet, AT49BV1614AT-90TI pinout, AT49BV1614AT-90TI application, or AT49BV1614AT-90TI equivalent, key selection criteria include its 48-pin TSOP/ CBGA package options, byte/word mode select via BYTE pin, erase suspend functionality, VPP-accelerated programming, and 128-bit protection register for secure firmware storage.
Technical Context
The AT49BV1614AT-90TI implements a dual-plane memory architecture-Plane A contains eight 4K-word and seven 32K-word sectors; Plane B contains twenty-four 32K-word sectors-enabling concurrent read while program/erase occurs in the opposite plane. Its command-driven operation uses six-byte sequences (e.g., Chip Erase, Sector Lockdown) latched on CE/WE edges with address/data timing compliant to standard microprocessor write cycles.
Hardware data protection includes VCC sense (<1.8V inhibits programming), 10 ms power-on delay, noise filtering (<15 ns pulses ignored), and control-line inhibit (OE low, CE high, or WE high blocks writes). The RDY/BUSY open-drain output supports OR-tying for multi-device status monitoring during internal operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16 or 2,097,152 × 8), enabling compact boot code + configuration storage in space-constrained designs |
| Access Time | 90 ns max (tACC), ensuring compatibility with 11 MHz bus timing in legacy microcontroller interfaces |
| Supply Voltage | 2.65–3.3V (BV variant), supporting direct integration with 3.3V logic domains without level-shifting |
| Sector Architecture | 39 sectors: thirty-one 64 KB (32K-word) + eight 8 KB (4K-word), allowing granular firmware updates without full chip erase |
| Program/Erase Speed | 20 µs word program; 300 ms sector erase; accelerated with 5V/12V on VPP pin for reduced production programming time |
| Power Consumption | 30 mA active read current; 10 µA CMOS standby, suitable for low-duty-cycle embedded systems |
| Operating Temperature | -40°C to +85°C (Industrial grade), validated for deployment in factory automation and outdoor telecom equipment |
Pinout & Package
AT49BV1614AT-90TI is available in 48-lead TSOP Type 1 and 48-ball CBGA packages. Pin functions are identical across both packages, with ball/pin mapping confirmed per official Microchip datasheet Rev. 1411F.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A-1 alias on I/O15 in byte mode |
| I/O0–I/O15 / I/O0–I/O7 | Data I/O (x16/x8) | BYTE pin selects mode: logic "1" enables full 16-bit I/O; logic "0" enables 8-bit I/O with I/O15 repurposed as A-1 |
| CE, OE, WE | Chip/Output/Write Enable | Dual-line control (CE+OE) prevents bus contention; WE initiates command latching and programming |
| RDY/BUSY | Open-drain status output | Active-low signal indicates ongoing program/erase; supports wired-OR with multiple devices on shared bus |
| VPP | Accelerated programming supply | Accepts 5.0V ±0.5V or 12.0V ±0.5V to reduce program/erase times; left unconnected for VCC-only operation |
| RESET | Hardware initialization | Pulling low halts current operation and forces high-impedance outputs; required to exit Single Pulse Program mode |
| VCCQ | Output driver supply | Independent 1.8–2.2V or 2.65–3.3V regulation enables mixed-voltage I/O interfacing (e.g., 3.3V core, 1.8V interface) |
Key Features
| Feature | Design Value |
|---|---|
| Dual-plane concurrent operation | Enables real-time read from one memory plane while programming/erasing the other-eliminating system stalls during firmware updates |
| Erase suspend/resume | Halts active sector erase to service urgent read/program requests in another sector, improving deterministic response in safety-critical applications |
| Sector lockdown | Per-sector write-protection activated via command sequence; preserves immutable boot code while allowing field-upgradable application partitions |
| 128-bit protection register | Factory-programmed 64-bit block A + user-programmable/lockable block B provides hardware-rooted device identity and secure key storage |
| Three end-of-operation detection methods | RDY/BUSY pin, Data Polling (I/O7 complement), and Toggle Bit (I/O6/I/O2) offer flexible, software- or hardware-based timing control |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Memory |
|---|---|
Use Scenario: Storing bootloader and FPGA configuration bitstreams in programmable logic controllers deployed in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile boot memory with sector lockdown protecting critical startup code from accidental overwrite during field firmware upgrades. Use Value: Dual-plane architecture allows background firmware validation while maintaining real-time I/O control execution-no system downtime during update cycles. | Use Scenario: Holding secure boot images and cryptographic keys in enterprise-grade routers requiring FIPS-aligned firmware integrity. IC Role / Device Role / Timing Role: Secure Flash with 128-bit protection register and hardware lockdown, interfaced to ARM Cortex-A series SoCs via 16-bit parallel bus. Use Value: Sector-level erase and VPP-accelerated programming reduce manufacturing test time by >40% versus standard 3.3V-only Flash alternatives. |
| Medical Diagnostic Equipment BIOS | Automotive Telematics Module |
Use Scenario: Storing certified diagnostic firmware and calibration tables in FDA-regulated imaging systems with strict revision traceability requirements. IC Role / Device Role / Timing Role: Industrial-temp (-40°C to +85°C) Flash memory operating in x16 mode with RDY/BUSY signaling for deterministic boot sequencing. Use Value: 90 ns access time meets tight timing budgets of ARM9-based host processors; erase suspend ensures uninterrupted sensor data logging during firmware patching. | Use Scenario: Hosting OTA-updatable vehicle connectivity stack (LTE modem firmware, TLS certificates) in automotive infotainment head units. IC Role / Device Role / Timing Role: Dual-plane Flash supporting concurrent read of active CAN protocol stack while erasing/reprogramming over-the-air update partition. Use Value: BYTE pin flexibility allows reuse of same PCB layout for both 8-bit microcontroller debug interfaces and 16-bit application processor buses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF1601C-90-4C-EKE | Single-plane architecture; no erase suspend; 48-pin TSOP; 90 ns access; 2.7–3.6V supply | Lacks dual-plane concurrency and sector lockdown-requires full-chip erase for updates; lower security assurance | Select when cost sensitivity outweighs need for concurrent operation and secure boot features |
| MX29LV160DBTI-90G | Boot-block architecture (top/bottom); 48-pin TSOP; 90 ns; 2.7–3.6V; lacks VPP pin and 128-bit register | Fixed boot sector layout limits flexibility vs. AT49BV1614AT-90TI's configurable 39-sector map | Choose for legacy designs already using MXIC boot Flash footprint and command set |
Compared with SST39VF1601C-90-4C-EKE and MX29LV160DBTI-90G, the AT49BV1614AT-90TI delivers unique value through dual-plane concurrency (reducing system latency during updates), hardware-enforced sector lockdown (enabling certified secure boot), and VPP-accelerated programming (cutting production line cycle time).
Availability
AT49BV1614AT-90TI is available at Aetrix Electronics and suitable for industrial automation, network infrastructure, medical diagnostics, and automotive telematics requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for AT49BV1614AT-90TI 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 is a global semiconductor company specializing in microcontrollers, analog devices, Flash memory, and security solutions for industrial, automotive, and communications markets.
The AT49BV/LV16X4A(T) family was designed specifically for reliable, in-system programmable boot code storage in resource-constrained embedded systems requiring high security, sector-level flexibility, and industrial temperature operation.
FAQ
What voltage levels are supported for VPP on the AT49BV1614AT-90TI?
The AT49BV1614AT-90TI accepts VPP at 5.0V ± 0.5V or 12.0V ± 0.5V to accelerate program and erase operations. When VPP is ≤ VCC, the device uses VCC for programming/erase. If VPP is within 0.3V of VCC (2.65V < VCC < 3.3V), VCC is selected automatically. The VPP pin may be left unconnected for standard VCC-only operation. This behavior is explicitly defined in the DC Characteristics table of the AT49BV1614AT-90TI datasheet.
How does the BYTE pin affect data bus configuration in the AT49BV1614AT-90TI?
In the AT49BV1614AT-90TI, the BYTE pin determines data width: logic "1" configures the device for 16-bit operation (I/O0–I/O15 active); logic "0" enables 8-bit mode where only I/O0–I/O7 are driven, and I/O15 functions as LSB address input (A-1). This dual-mode capability allows a single AT49BV1614AT-90TI design to serve both 16-bit microprocessors and 8-bit controllers without PCB redesign-confirmed in the Device Operation section of the AT49BV1614AT-90TI datasheet.
Can the AT49BV1614AT-90TI perform reads during an erase operation?
Yes-the AT49BV1614AT-90TI supports concurrent read during program/erase via its dual-plane architecture: reads from Plane B are fully permitted while erasing Plane A, and vice versa. Additionally, the Erase Suspend feature allows temporary halting of an erase in one sector to read/program any other sector in the same plane. These capabilities are intrinsic to the AT49BV1614AT-90TI's silicon design and are documented in the Technical Context and Device Operation sections of its datasheet.
What is the purpose of the 128-bit protection register in the AT49BV1614AT-90TI?
The AT49BV1614AT-90TI's 128-bit protection register comprises two 64-bit blocks: Block A is factory-programmed with a unique identifier and cannot be altered; Block B is user-programmable and optionally lockable to prevent rewrites. It serves as a hardware root of trust for secure boot, device authentication, and cryptographic key storage-functions verified in the Protection Register Addressing Table and Command Definition sections of the AT49BV1614AT-90TI datasheet.
Does the AT49BV1614AT-90TI support top or bottom boot block configuration?
Yes-the AT49BV1614AT-90TI supports both top and bottom boot block configurations, determined by factory programming. This allows system designers to align protected boot sectors at either end of the memory map depending on bootloader size and partitioning strategy. The configuration is fixed per device and documented in the Ordering Information section of the AT49BV1614AT-90TI datasheet; it does not require runtime selection or pin strapping.
AT49BV1614AT-90TI 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:
- 2M x 8, 1M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 50µs
- Access Time:
- 90 ns
- Voltage - Supply:
- 2.65V ~ 3.3V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
AT49BV1614AT-90TI FAQ
1.How can I place an order for AT49BV1614AT-90TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV1614AT-90TI 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 AT49BV1614AT-90TI reliable?
The price and inventory of AT49BV1614AT-90TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV1614AT-90TI is usually 5 days.
3.What payment methods are accepted for AT49BV1614AT-90TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV1614AT-90TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV1614AT-90TI?
AT49BV1614AT-90TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV1614AT-90TI 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 AT49BV1614AT-90TI?
For technical support, including AT49BV1614AT-90TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV1614AT-90TI requirements.
6.How does Aetrix verify that AT49BV1614AT-90TI is sourced from the original manufacturer or authorized distributors?
All AT49BV1614AT-90TI 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 AT49BV1614AT-90TI meets industry standards.
7.What is the process for return or replacement of AT49BV1614AT-90TI?
All AT49BV1614AT-90TI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV1614AT-90TI, 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 AT49BV1614AT-90TI part is unused and in its original packaging.
Return procedure for AT49BV1614AT-90TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV1614AT-90TI Tags
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