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Microchip Technology AT49BV1614A-90CI
- Part No.:
- AT49BV1614A-90CI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA, CSPBGA
- Datasheet:
-
AT49BV1614A-90CI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48CBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,007
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Product details
Overview
AT49BV1614A-90CI 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, sector erase capability, and erase suspend functionality. It supports in-system programming via single 2.65–3.3V supply and is used in embedded boot code storage, firmware update modules, and industrial controller nonvolatile memory.
For engineers reviewing the AT49BV1614A-90CI datasheet, AT49BV1614A-90CI pinout, AT49BV1614A-90CI application, or AT49BV1614A-90CI equivalent, key selection criteria include its 39-sector erase topology (31 × 64KB + 8 × 8KB), byte/word mode select via BYTE pin, VPP-accelerated program/erase (5V or 12V), and dual-plane concurrent read-while-program capability.
Technical Context
The AT49BV1614A-90CI implements a two-plane memory architecture: Plane A contains eight 4K-word and seven 32K-word sectors; Plane B contains twenty-four 32K-word sectors. This enables true concurrent operation - reads from one plane while programming or erasing the other.
It uses command-based operation with six-byte sequences for chip/sector erase and lockdown, four-byte sequences for protection register programming, and supports three end-of-operation detection methods: RDY/BUSY pin (open-drain), Data Polling on I/O7, and Toggle Bit on I/O6/I/O2. Hardware data protection includes VCC sense, power-on delay, and noise filtering on WE/CE.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit or 2,097,152 × 8-bit) |
| Access Time | 90 ns max - defines minimum clock cycle for reliable read timing in microcontroller interfaces |
| Supply Voltage | 2.65V to 3.3V - enables direct compatibility with 3.3V logic systems without level shifting |
| Sector Architecture | 39 sectors: 31 × 64KB + 8 × 8KB - allows granular firmware updates and secure boot partitioning |
| Program Time | 20 µs per word - determines write throughput for field firmware patches |
| Erase Time | 300 ms per sector - impacts system downtime during reprogramming sequences |
| Standby Current | 10 µA - ensures ultra-low power retention in battery-backed or always-on embedded applications |
Pinout & Package
AT49BV1614A-90CI is available in 48-lead TSOP (Type 1) and 48-ball CBGA packages. The -90CI suffix denotes Industrial temperature grade (–40°C to +85°C) and TSOP packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A-1 function on I/O15 in byte mode |
| I/O0–I/O15 | Data I/O (x16) / I/O0–I/O7 + A-1 (x8) | Configurable 16-bit or 8-bit data interface; BYTE pin selects mode |
| CE, OE, WE | Chip Enable, Output Enable, Write Enable | Standard asynchronous SRAM-like control; dual-line (CE+OE) prevents bus contention |
| RDY/BUSY | Open-drain status output | Signals active program/erase cycles; supports wired-OR for multi-device monitoring |
| VPP | Accelerated program/erase supply | Accepts 5V ±0.5V or 12V ±0.5V to reduce tBP/tSEC; optional - may be unconnected |
| RESET | Hardware initialization input | Aborts ongoing operations and forces return to read/standby mode on rising edge |
| BYTE | Mode select (x16/x8) | Logic high = word mode (I/O0–I/O15 active); logic low = byte mode (I/O0–I/O7 active, I/O15 = A-1) |
| VCCQ | Output driver supply | Decouples I/O voltage from core VCC; enables mixed-voltage I/O interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Dual-plane concurrent read-while-program/erase | Enables zero-wait-state background firmware updates without halting host CPU execution |
| Erase suspend/resume | Allows interruption of sector erase to service urgent read requests from same-plane sectors |
| Sector lockdown | Per-sector write-protection lock via command sequence - secures boot code against accidental overwrite |
| 128-bit protection register | Factory-programmed 64-bit ID block + user-programmable 64-bit lockable block for anti-cloning |
| Hardware data protection | VCC sense, 10ms power-on delay, and 15ns noise filter prevent spurious writes during power transients |
Applications
| Industrial PLC Firmware Storage | Automotive ECU Boot Memory |
|---|---|
|
Use Scenario: Storing boot loader and safety-critical firmware in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile boot memory with sector lockdown protecting startup code and dual-plane operation enabling field-upgradable application partitions. Use Value: Prevents corruption during brownouts via hardware data protection and allows live firmware patching without system reboot. |
Use Scenario: Holding certified bootloader and calibration data in engine control units requiring ASIL-B compliance. IC Role / Device Role / Timing Role: Secure, temperature-stable Flash memory with 128-bit protection register for traceability and sector lockdown for ISO 26262 partitioning. Use Value: Enables secure over-the-air (OTA) updates by isolating protected boot sectors from writable application sectors. |
| Medical Device Configuration Storage | Networking Equipment Boot Image |
|
Use Scenario: Retaining device-specific calibration parameters and regulatory configuration profiles in portable diagnostic equipment. IC Role / Device Role / Timing Role: Low-power (10 µA standby) Flash memory with byte/word mode flexibility for compact MCU interfaces and EEPROM-like usage patterns. Use Value: Extends battery life in portable devices while supporting fast 20 µs word programming for runtime parameter saves. |
Use Scenario: Hosting primary boot image and fail-safe recovery firmware in enterprise switches and routers. IC Role / Device Role / Timing Role: High-reliability Flash with RDY/BUSY pin and Data Polling for deterministic boot sequencing in multi-core network processors. Use Value: Guarantees boot integrity via sector lockdown and accelerates firmware deployment using VPP-assisted 300 ms sector erase. |
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 | 16 Mbit, 90 ns, 2.7–3.6V; no VPP pin; lacks erase suspend and dual-plane architecture | Lower cost for basic boot storage where concurrent operation is unnecessary | Choose when VPP acceleration and real-time erase suspension are not required |
| MX29LV160DBTI-90G | 16 Mbit, 90 ns, 2.7–3.6V; top/bottom boot configurable; no BYTE pin or VCCQ separation | Better pin compatibility with legacy AMD/Spansion designs; no separate I/O voltage rail | Prefer for drop-in replacement in existing AMD-compatible layouts without VCCQ routing |
Compared with SST39VF1601C-90-4C-EKE and MX29LV160DBTI-90G, the AT49BV1614A-90CI uniquely delivers dual-plane concurrency, erase suspend, and independent VCCQ for mixed-signal I/O - critical for deterministic real-time firmware updates in safety-critical systems.
Availability
AT49BV1614A-90CI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot memory, and medical device configuration storage requiring stable component supply across extended product lifecycles.
Supply support for AT49BV1614A-90CI 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/LV family of parallel Flash memories, emphasizing reliability and long-term availability for industrial and automotive applications.
The AT49BV1614A-90CI belongs to Atmel's legacy parallel-interface Flash product line, designed specifically for embedded systems requiring robust, in-system programmable nonvolatile memory with advanced security and real-time operation features.
FAQ
What is the operating voltage range for AT49BV1614A-90CI?
The AT49BV1614A-90CI operates from 2.65V to 3.3V for the BV variant. Its VCCQ pin supports independent 1.8V–3.3V I/O voltage regulation, enabling interoperability with mixed-voltage microcontrollers. The device includes VCC sense circuitry that inhibits programming if VCC drops below ~1.8V, ensuring data integrity during power transitions.
Does AT49BV1614A-90CI support both byte and word data interfaces?
Yes, AT49BV1614A-90CI supports configurable x8 or x16 operation via the BYTE pin. When BYTE = high, I/O0–I/O15 are active for 16-bit transfers; when BYTE = low, only I/O0–I/O7 are active (x8 mode), and I/O15 functions as the LSB address input (A-1). This eliminates need for external data bus multiplexing in resource-constrained designs.
How does the dual-plane architecture improve system performance in AT49BV1614A-90CI?
The AT49BV1614A-90CI's dual-plane architecture allows simultaneous read from one plane while programming or erasing the other - eliminating wait states during firmware updates. For example, a host processor can fetch instructions from Plane B while Plane A undergoes sector erase, maintaining real-time responsiveness in safety-critical applications.
What methods detect completion of program or erase cycles in AT49BV1614A-90CI?
AT49BV1614A-90CI provides three independent detection methods: (1) RDY/BUSY pin (open-drain, active-low), (2) Data Polling on I/O7 (complement-to-data during operation), and (3) Toggle Bit on I/O6 (toggles until completion). These allow flexible polling or interrupt-driven handling depending on host controller capabilities.
Can sector lockdown on AT49BV1614A-90CI be reversed after activation?
Sector lockdown on AT49BV1614A-90CI is reversible only via hardware reset or power cycle - not through software commands. Once a sector is locked, it becomes read-only until the next RESET assertion or power-on event, at which point all sectors return to unlocked state and may be reprogrammed or re-locked selectively.
AT49BV1614A-90CI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 48-TFBGA, CSPBGA
- 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-CBGA (6x8)
AT49BV1614A-90CI FAQ
1.How can I place an order for AT49BV1614A-90CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV1614A-90CI 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 AT49BV1614A-90CI reliable?
The price and inventory of AT49BV1614A-90CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV1614A-90CI is usually 5 days.
3.What payment methods are accepted for AT49BV1614A-90CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV1614A-90CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV1614A-90CI?
AT49BV1614A-90CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV1614A-90CI 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 AT49BV1614A-90CI?
For technical support, including AT49BV1614A-90CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV1614A-90CI requirements.
6.How does Aetrix verify that AT49BV1614A-90CI is sourced from the original manufacturer or authorized distributors?
All AT49BV1614A-90CI 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 AT49BV1614A-90CI meets industry standards.
7.What is the process for return or replacement of AT49BV1614A-90CI?
All AT49BV1614A-90CI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV1614A-90CI, 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 AT49BV1614A-90CI part is unused and in its original packaging.
Return procedure for AT49BV1614A-90CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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