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Microchip Technology AT49LV1614A-70CI
- Part No.:
- AT49LV1614A-70CI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA, CSPBGA
- Datasheet:
-
AT49LV1614A-70CI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48CBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,403
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Product details
Overview
AT49LV1614A-70CI from Microchip Technology (formerly Atmel) is a 16-Mbit (1M × 16 / 2M × 8) 3.0–3.6 V Flash memory IC with 70 ns access time, sector erase architecture (31 × 64 KB + 8 × 8 KB), and dual-plane concurrent read/program capability. It supports in-system programming via single-supply operation and is used in embedded boot code storage for industrial controllers and network edge devices.
For engineers reviewing the AT49LV1614A-70CI datasheet, AT49LV1614A-70CI pinout, AT49LV1614A-70CI application, or AT49LV1614A-70CI equivalent, key selection criteria include sector lockdown support, VPP-accelerated erase (5 V or 12 V), RDY/BUSY open-drain signaling, byte/word mode select via BYTE pin, and TSOP/CBGA package compatibility for legacy PCB designs.
Technical Context
The AT49LV1614A-70CI implements a dual-plane Flash architecture: Plane A contains eight 4K-word and seven 32K-word sectors; Plane B contains twenty-four 32K-word sectors. This enables concurrent read from one plane while programming or erasing the other - eliminating wait states during firmware updates.
It uses command-based operation with six-byte sequences for chip/sector erase and lockdown, 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. The VPP pin selects between VCC-only (≤3.6 V) or accelerated (5 V ±0.5 V or 12 V ±0.5 V) program/erase voltage sources.
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 | 70 ns - guarantees deterministic read latency for real-time boot code fetch in microcontroller host systems |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V logic rails and tolerant of 5.5 V input on address/control pins |
| Active Current | 30 mA - enables low-power operation in battery-backed or energy-constrained embedded systems |
| Standby Current | 10 µA - supports deep-sleep modes without external power gating |
| Sector Erase Time | 300 ms max - defines worst-case firmware update window for individual 8 KB or 64 KB regions |
| Program Time | 20 µs per word - enables high-throughput field reprogramming of configuration data or calibration tables |
Pinout & Package
AT49LV1614A-70CI is available in 48-lead TSOP Type I (JEDEC MO-141AC) and 48-ball CBGA (ball pitch 0.8 mm) packages. Pin functions are identical across both packages, with ball/pin mapping validated per Microchip doc 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 | 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/Output/Write Enable | Dual-line control (CE+OE) prevents bus contention; WE active-low initiates commands |
| RDY/BUSY | Open-Drain Status Output | Shared line for multi-device status monitoring; pulled low during internal program/erase |
| VPP | Accelerated Program/Erase Supply | Accepts 5 V ±0.5 V or 12 V ±0.5 V to reduce tBP/tSEC; unconnected = VCC-only operation |
| RESET | Hardware Initialization Input | Asynchronous reset halts ongoing operations and forces high-Z outputs |
| BYTE | Word/Byte Mode Select | Logic high = x16 mode (I/O0–I/O15 active); logic low = x8 mode (I/O0–I/O7 active, I/O15 = A-1) |
| VCCQ | Output Driver Power | Separate 1.8–3.3 V supply for I/O output levels; decoupling required for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Dual-plane concurrent read/program | Enables background firmware patching without interrupting real-time execution from alternate memory plane |
| Erase suspend/resume | Allows interruption of sector erase to service urgent read requests - critical for deterministic response in safety-critical systems |
| 128-bit protection register | Factory-programmed 64-bit block A + user-programmable/lockable block B for secure boot key storage |
| Sector lockdown | Per-sector write-protection activated via command; prevents accidental overwrite of bootloader or calibration data |
| Hardware data protection | VCC sense, 10 ms power-on delay, noise filtering (<15 ns), and control-line inhibit prevent spurious writes |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Memory |
|---|---|
Use Scenario: Storing boot loader and FPGA configuration bitstreams in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile boot memory with sector lockdown protecting startup code and RDY/BUSY signaling for deterministic initialization timing. Use Value: Prevents field corruption of critical boot code via hardware-enforced write protection and supports hot firmware updates without system downtime. | Use Scenario: Holding boot firmware and routing table metadata in carrier-grade Ethernet routers requiring field-upgradable images. IC Role / Device Role / Timing Role: Dual-plane Flash enabling concurrent read of active image while programming new version into protected sector. Use Value: Reduces router reboot time by >40% versus single-plane alternatives through background erase/program operations. |
| Medical Diagnostic Equipment | Automotive Body Control Module |
Use Scenario: Storing calibration coefficients and safety-critical diagnostic algorithms in portable ultrasound and ECG devices. IC Role / Device Role / Timing Role: Secure non-volatile storage with 128-bit protection register for cryptographic keys and sector lockdown for FDA-mandated immutable firmware. Use Value: Meets IEC 62304 software lifecycle requirements by preventing unauthorized modification of certified code segments. | Use Scenario: Retaining vehicle-specific configuration parameters (e.g., door lock logic, lighting profiles) in BCMs across production variants. IC Role / Device Role / Timing Role: Field-programmable parameter storage with byte-mode access for efficient EEPROM-like updates without full sector erase. Use Value: Enables dealer-level personalization and recall campaigns via targeted 8 KB sector reprogramming instead of full flash replacement. |
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; no concurrent read/program; 70 ns access; 3.0–3.6 V | Lacks dual-plane and erase suspend - requires full system stall during firmware update | Select when cost sensitivity outweighs performance requirements and board layout lacks space for RDY/BUSY pull-up |
| MX29LV160DBTI-70G | Same density and 70 ns speed; top-boot configuration; 2.7–3.6 V; no VPP pin | Uses internal charge pump for acceleration; no external VPP supply needed but higher ICC during program | Prefer for new designs where VPP routing complexity must be avoided and 50 mA peak current is acceptable |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160DBTI-70G, the AT49LV1614A-70CI uniquely delivers concurrent dual-plane operation and hardware sector lockdown - making it optimal for safety-certified or zero-downtime firmware update scenarios where deterministic timing and data integrity are mandatory.
Availability
AT49LV1614A-70CI is available at Aetrix Electronics and suitable for industrial PLCs, network infrastructure equipment, medical diagnostics, and automotive body control modules requiring stable component supply and long-term obsolescence management.
Supply support for AT49LV1614A-70CI 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 AT49LV1614A-70CI belongs to Microchip's legacy parallel-interface Flash memory product line, designed specifically for reliable in-system programmability and robust data retention in mission-critical embedded boot applications.
FAQ
What is the operating voltage range for AT49LV1614A-70CI?
The AT49LV1614A-70CI operates from 3.0 V to 3.6 V on VCC. Its address and control inputs tolerate up to 5.5 V, and the VPP pin accepts either 0 V (disconnected), 5.0 V ±0.5 V, or 12.0 V ±0.5 V for accelerated program/erase cycles. VCCQ (output driver supply) must be regulated separately for 1.8–2.2 V or 2.65–3.3 V output levels depending on system interface requirements.
How does the BYTE pin affect AT49LV1614A-70CI functionality?
The BYTE pin on AT49LV1614A-70CI determines data bus width: logic high enables 16-bit (x16) operation with I/O0–I/O15 active; logic low enables 8-bit (x8) operation where only I/O0–I/O7 are driven and I/O15 serves as the LSB address input (A-1). This allows flexible integration with both 16-bit microcontrollers and 8-bit legacy processors without external glue logic.
Can AT49LV1614A-70CI perform read operations during program or erase?
Yes, AT49LV1614A-70CI supports true concurrent read/program/erase due to its dual-plane architecture. Reads from Plane B can occur while Plane A is being programmed or erased, and vice versa. Additionally, the Erase Suspend feature allows pausing an erase in one sector to read or program another sector within the same plane - providing maximum system responsiveness during firmware updates.
What methods detect completion of program or erase cycles on AT49LV1614A-70CI?
AT49LV1614A-70CI provides three independent end-of-cycle detection methods: (1) RDY/BUSY pin (open-drain, pulled low during operation), (2) Data Polling on I/O7 (complement of written data until completion), and (3) Toggle Bit on I/O6 (toggles during operation, stops when complete). I/O2 also toggles during erase-suspended reads, offering redundant status visibility for fault-tolerant designs.
Is sector lockdown reversible on AT49LV1614A-70CI?
Sector lockdown on AT49LV1614A-70CI is reversible only via hardware reset or power cycle. Once a sector is locked down using the six-bus-cycle Sector Lockdown command, its contents become read-only until the device is reset or powered off/on. This ensures that protected boot code remains intact during field updates while allowing recovery through controlled system restart procedures.
AT49LV1614A-70CI 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:
- 70 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-CBGA (6x8)
AT49LV1614A-70CI FAQ
1.How can I place an order for AT49LV1614A-70CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49LV1614A-70CI 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 AT49LV1614A-70CI reliable?
The price and inventory of AT49LV1614A-70CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49LV1614A-70CI is usually 5 days.
3.What payment methods are accepted for AT49LV1614A-70CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49LV1614A-70CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49LV1614A-70CI?
AT49LV1614A-70CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49LV1614A-70CI 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 AT49LV1614A-70CI?
For technical support, including AT49LV1614A-70CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49LV1614A-70CI requirements.
6.How does Aetrix verify that AT49LV1614A-70CI is sourced from the original manufacturer or authorized distributors?
All AT49LV1614A-70CI 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 AT49LV1614A-70CI meets industry standards.
7.What is the process for return or replacement of AT49LV1614A-70CI?
All AT49LV1614A-70CI units undergo pre-shipment inspection (PSI). If there is an issue with AT49LV1614A-70CI, 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 AT49LV1614A-70CI part is unused and in its original packaging.
Return procedure for AT49LV1614A-70CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49LV1614A-70CI Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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