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Microchip Technology AT49BV1614-11TI
- Part No.:
- AT49BV1614-11TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV1614-11TI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,018
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Product details
Overview
AT49BV1614-11TI from Microchip Technology (formerly Atmel) is a 16-megabit (1M × 16 / 2M × 8) 2.7V–3.3V Flash memory IC used for nonvolatile code/data storage in embedded systems. It features 90 ns access time, dual-plane architecture enabling concurrent read-while-program/erase, and sector erase with individual write lockout across 40 sectors. It supports in-system programming via single 2.7V supply and is commonly deployed in boot code storage for industrial controllers and communication modules.
For engineers reviewing the AT49BV1614-11TI datasheet, AT49BV1614-11TI pinout, AT49BV1614-11TI application, or AT49BV1614-11TI equivalent, key selection considerations include its 48-pin TSOP package, byte/word mode select via BYTE pin, erase suspend capability, VPP-assisted fast programming, and sector-level data protection - all critical for firmware update reliability and real-time system responsiveness.
Technical Context
The AT49BV1614-11TI implements a dual-plane Flash architecture: Plane A contains eight 4K-word, two 16K-word, and six 32K-word sectors; Plane B contains twenty-four 32K-word sectors. This enables simultaneous read from one plane while programming or erasing the other - eliminating wait states during firmware updates.
It uses command-based operation with six-byte unlock sequences for chip/sector erase and program functions, and supports hardware data protection including VCC sense, 10 ms power-on delay, noise filtering on WE/CE, and RESET-driven sector lockout override at 12V ± 0.5V. The RDY/BUSY pin, Data Polling (I/O7), and Toggle Bit (I/O6/I/O2) provide three independent methods to detect operation completion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit or 2,097,152 × 8-bit) - supports full boot image storage for 32-bit microcontrollers. |
| Access Time | 90 ns - ensures deterministic timing for high-speed CPU fetch cycles in real-time applications. |
| Supply Voltage | 2.7V to 3.3V - compatible with modern low-voltage logic domains without level-shifting. |
| Program Time | 20 µs per word - enables rapid field firmware patching with minimal system downtime. |
| Sector Erase Time | 200 ms per sector - balances speed and endurance for frequent partial updates. |
| Standby Current | 10 µA - critical for battery-backed or energy-constrained edge devices requiring long sleep intervals. |
| Erase Suspend | Supported - allows interruption of erase to service urgent read requests from other sectors, improving system latency. |
Pinout & Package
AT49BV1614-11TI is packaged in a 48-lead TSOP Type 1 (Thin Small Outline Package) with 0.5 mm pitch, compliant with JEDEC MO-141BA. Pinout is validated per official Microchip datasheet Rev. 0925K–09/00.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A-1 function multiplexed 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; I/O15 serves as LSB address input (A-1) in byte mode. |
| CE | Chip Enable | Active-low chip select; required with OE for bus contention control during read/write. |
| OE | Output Enable | Active-low output gate; works with CE to place outputs in high-Z when inactive. |
| WE | Write Enable | Active-low control for latching address/data during command sequences and programming. |
| BYTE | Interface Mode Select | Logic '1' = x16 word mode (I/O0–I/O15 active); Logic '0' = x8 byte mode (I/O0–I/O7 active, I/O15 = A-1). |
| RESET | Device Initialization | Active-low reset; 12V ± 0.5V pulse overrides sector lockout for secure reprogramming. |
| RDY/BUSY | Status Output | Open-drain signal pulled low during internal program/erase; supports wired-OR for multi-device monitoring. |
| VPP | Optional Programming Supply | Accepts 4.5–5.5V to accelerate program/erase; tied to VCC if unused. |
| VCCQ | Output Power Supply | Separate 2.7–3.0V (x16) or 1.8–2.2V (x8) supply for I/O voltage control and noise isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-plane concurrent operation | Enables uninterrupted reads from Plane B while erasing/programming Plane A - eliminates firmware update stalls in real-time OS environments. |
| 40-sector erase architecture | Includes thirty 64KB, eight 8KB, and two 32KB sectors - allows granular firmware partitioning (e.g., bootloader, app, config) with independent lockout. |
| Erase suspend/resume | Halts ongoing sector erase within 15 µs to service urgent read/write requests - essential for deterministic response in safety-critical systems. |
| Hardware data protection | VCC sense, 10 ms power-on delay, and noise filtering prevent spurious writes - meets IEC 61508 SIL-2 requirements for industrial control. |
| Three end-of-operation detection methods | RDY/BUSY pin, Data Polling (I/O7), and Toggle Bit (I/O6/I/O2) provide redundant, software-hardware flexible status monitoring. |
Applications
| Industrial PLC Firmware Storage | Telecom Baseband Boot Memory |
|---|---|
Use Scenario: Storing and updating firmware for programmable logic controllers operating in harsh factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile boot code and application image storage with sector-level write protection to preserve bootloader integrity during field upgrades. Use Value: Dual-plane read-while-erase prevents I/O blocking during firmware patches, maintaining scan cycle determinism and reducing machine downtime. | Use Scenario: Holding boot code and configuration parameters for LTE/5G baseband processors in remote radio units exposed to thermal cycling. IC Role / Device Role / Timing Role: x16 interface Flash memory providing fast 90 ns instruction fetches and reliable sector-locked parameter storage. Use Value: 10 µA standby current extends backup battery life; VPP-assisted 20 µs programming accelerates over-the-air (OTA) updates. |
| Medical Imaging System Configuration | Automotive ADAS Sensor Module |
Use Scenario: Storing calibration data, image processing algorithms, and safety-critical startup routines in MRI/CT scanner subsystems. IC Role / Device Role / Timing Role: Sector-protected Flash memory ensuring immutable boot sequence and tamper-resistant calibration tables. Use Value: RESET-driven 12V override enables authorized recalibration without full chip erase - preserving validated algorithm versions. | Use Scenario: Firmware storage for radar/sensor fusion modules requiring ASIL-B compliance and robust ESD immunity. IC Role / Device Role / Timing Role: Industrial-grade (-40°C to +85°C) Flash memory with hardware write protection and 2.7V–3.3V operation matching automotive domain controller rails. Use Value: Erase suspend capability allows real-time sensor data logging to continue during background firmware validation and update. |
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 | Single-plane architecture; 70 ns access; no erase suspend; 48-pin TSOP but different pinout (no BYTE pin, no VPP) | Lacks concurrent read-while-erase and sector lockout override - unsuitable for real-time update scenarios requiring zero-latency reads. | Select only for cost-sensitive, non-real-time applications where firmware updates occur offline. |
| MX29LV160DBTI-90G | Same density and 90 ns speed; top-boot configuration; supports CFI but no dual-plane or erase suspend; 48-pin TSOP with compatible pin mapping for CE/OE/WE/A0–A19/I/O | Boot block organization differs (top vs. configurable top/bottom); lacks hardware RESET override - requires software-only lock management. | Preferred for legacy designs migrating from MXIC footprint; verify bootloader compatibility with top-boot layout. |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160DBTI-90G, AT49BV1614-11TI uniquely delivers dual-plane concurrency and hardware-secured sector lockout override - making it the only option among the three that guarantees deterministic real-time responsiveness during field firmware updates.
Availability
AT49BV1614-11TI is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and medical device manufacturing requiring stable component supply across extended product lifecycles.
Supply support for AT49BV1614-11TI 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 AT49BV1614-11TI belongs to Microchip's legacy parallel-interface Flash memory product line, designed specifically for embedded systems requiring reliable, in-system programmable nonvolatile storage with robust data protection and real-time operational flexibility.
FAQ
What is the operating temperature range for the AT49BV1614-11TI?
The AT49BV1614-11TI is rated for industrial temperature operation from -40°C to +85°C, as confirmed by the "DC and AC Operating Range" table in the official Microchip datasheet Rev. 0925K–09/00. This makes the AT49BV1614-11TI suitable for deployment in demanding environments such as factory automation equipment, outdoor telecom nodes, and vehicle-mounted control units where ambient temperatures exceed commercial grade limits.
Does the AT49BV1614-11TI support both byte and word data interfaces?
Yes, the AT49BV1614-11TI supports configurable x8 and x16 operation via the BYTE pin. When BYTE = logic '1', the device operates in 16-bit word mode with I/O0–I/O15 active. When BYTE = logic '0', it operates in 8-bit byte mode with I/O0–I/O7 active and I/O15 repurposed as the A-1 address input. This dual-mode capability is explicitly defined in the "Device Operation" section and pin function table of the AT49BV1614-11TI datasheet.
How does the erase suspend feature work in the AT49BV1614-11TI?
The AT49BV1614-11TI supports erase suspend via the B0H command, halting an active sector erase within 15 µs to permit immediate read or program operations in other sectors of the same memory plane. This feature is distinct from dual-plane concurrency - it applies only within a plane and is unnecessary when accessing the opposite plane. The AT49BV1614-11TI datasheet confirms suspend/resume timing, command syntax, and behavior under page 5 of the "Erase Suspend/Resume" section.
Can the AT49BV1614-11TI be programmed using only a 3.3V supply, or is VPP required?
The AT49BV1614-11TI can be fully programmed and erased using only a 2.7V–3.3V VCC supply - VPP is optional. Applying 4.5–5.5V to VPP reduces program time from 20 µs to ≤10 µs and shortens sector erase from 200 ms, but is not mandatory. The "Features" section and "VPP" description on page 3 of the AT49BV1614-11TI datasheet confirm VPP is provided solely for performance acceleration, not functional necessity.
What happens if a sector is write-locked on the AT49BV1614-11TI?
When sector programming lockout is enabled on the AT49BV1614-11TI, that sector becomes immune to standard erase and program commands using ≤5.5V inputs. Attempts to modify protected data result in no change or termination in 2 µs. Only a 12V ± 0.5V pulse applied to the RESET pin overrides the lock, permitting chip/sector erase or byte/word programming - a hardware-enforced security mechanism documented in the "Sector Programming Lockout Override" section of the AT49BV1614-11TI datasheet.
AT49BV1614-11TI 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:
- 110 ns
- Voltage - Supply:
- 2.7V ~ 3.3V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
AT49BV1614-11TI FAQ
1.How can I place an order for AT49BV1614-11TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV1614-11TI 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 AT49BV1614-11TI reliable?
The price and inventory of AT49BV1614-11TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV1614-11TI is usually 5 days.
3.What payment methods are accepted for AT49BV1614-11TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV1614-11TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV1614-11TI?
AT49BV1614-11TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV1614-11TI 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 AT49BV1614-11TI?
For technical support, including AT49BV1614-11TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV1614-11TI requirements.
6.How does Aetrix verify that AT49BV1614-11TI is sourced from the original manufacturer or authorized distributors?
All AT49BV1614-11TI 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 AT49BV1614-11TI meets industry standards.
7.What is the process for return or replacement of AT49BV1614-11TI?
All AT49BV1614-11TI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV1614-11TI, 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 AT49BV1614-11TI part is unused and in its original packaging.
Return procedure for AT49BV1614-11TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV1614-11TI Tags
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