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Microchip Technology AT49LV1614A-70TI
- Part No.:
- AT49LV1614A-70TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49LV1614A-70TI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT49LV1614A-70TI 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), dual-plane concurrent read/program capability, and Erase Suspend functionality. It serves as nonvolatile program/data storage in embedded boot code, firmware update, and industrial control systems.
For engineers reviewing the AT49LV1614A-70TI datasheet, AT49LV1614A-70TI pinout, AT49LV1614A-70TI application, or AT49LV1614A-70TI equivalent, key selection considerations include byte/word mode support via BYTE pin, VPP-accelerated programming (5 V or 12 V), 128-bit protection register, sector lockdown, and TSOP/CBGA package compatibility for space-constrained designs.
Technical Context
The AT49LV1614A-70TI 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 supports hardware-based data protection (VCC sense, noise filtering, CE/OE/WE inhibit), three end-of-operation detection methods (RDY/BUSY open-drain output, Data Polling on I/O7, Toggle Bit on I/O6/I/O2), and six-byte command sequences for chip/sector erase, lockdown, and protection register programming - all executed without external clocks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit or 2,097,152 × 8-bit) - supports boot code + application storage in single device |
| Access Time | 70 ns - meets real-time read latency requirements for microcontroller boot fetch and firmware execution |
| Supply Voltage | 3.0 V to 3.6 V (LV variant) - compatible with 3.3 V system rails and low-power industrial operation |
| Active Current | 30 mA - enables stable operation under sustained read load without thermal derating |
| Standby Current | 10 µA - supports ultra-low-power sleep modes in battery-backed or energy-sensitive systems |
| Sector Erase Time | 300 ms max - allows rapid field firmware patching of individual functional modules |
| Word Program Time | 20 µs - enables high-throughput in-system programming during production or field update |
Pinout & Package
AT49LV1614A-70TI is available in 48-lead TSOP (Type 1) and 48-ball CBGA packages. Pin functions are identical across both packages, with ball/pin mapping validated 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 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 - critical for MCU bus width matching |
| CE, OE, WE | Chip Enable, Output Enable, Write Enable | Dual-line control (CE+OE) prevents bus contention; WE latches commands and data - standard microprocessor timing compliant |
| RDY/BUSY | Open-drain status output | Active-low signal indicates internal program/erase progress; supports OR-tying for multi-device monitoring |
| VPP | Accelerated program/erase supply | Accepts 5.0 V ± 0.5 V or 12.0 V ± 0.5 V to reduce tBP/tSEC - optional; unconnected = VCC-powered operation |
| RESET | Hardware initialization input | Forces high-impedance outputs and returns device to read/standby mode - essential for safe power-up sequencing |
| BYTE | Bus width configuration | Logic "1" = x16 mode (I/O0–I/O15 active); Logic "0" = x8 mode (I/O0–I/O7 active, I/O15 = A-1) - determines MCU interface wiring |
| VCCQ | Output driver supply | Independent 1.8–3.3 V output voltage rail - decouples I/O drive strength from core VCC, enabling mixed-voltage system interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Dual-plane concurrent operation | Enables simultaneous read from Plane B while erasing/programming Plane A - eliminates CPU idle time during firmware updates |
| Erase Suspend/Resume | Pauses active sector erase to allow immediate read/program from another sector in same plane - improves system responsiveness during partial reflash |
| Sector Lockdown | Per-sector write-protection activated via six-byte command - preserves immutable boot loader while permitting application partition updates |
| 128-bit Protection Register | Factory-programmed 64-bit Block A + user-programmable/lockable Block B - supports secure device identification and anti-cloning in OEM systems |
| Hardware Data Protection | VCC sense, 10 ms power-on delay, noise filtering (<15 ns), and CE/OE/WE inhibit - prevents spurious writes during brown-out or EMI events |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
|
Use Scenario: Storing boot loader and real-time control firmware in programmable logic controllers with field-upgrade capability. IC Role / Device Role / Timing Role: Nonvolatile code storage with deterministic 70 ns read access and sector-level erase isolation. Use Value: Enables safe in-field firmware patches without full reflash; sector lockdown protects bootloader integrity against corruption. |
Use Scenario: Hosting primary boot image and UI assets in automotive head units requiring AEC-Q100-compliant nonvolatile memory. IC Role / Device Role / Timing Role: x16 interface Flash memory operating at 3.3 V with -40°C to +85°C industrial temperature range. Use Value: Dual-plane architecture allows background firmware validation while displaying splash screen - reducing boot time perception. |
| Medical Device Configuration Storage | Networking Equipment Parameter Table |
|
Use Scenario: Retaining calibrated sensor coefficients and user-configurable therapy parameters in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, sector-locked Flash with 128-bit protection register for tamper-resistant configuration storage. Use Value: Sector lockdown and protection register prevent unauthorized parameter modification - supporting FDA regulatory traceability requirements. |
Use Scenario: Storing MAC address tables, routing rules, and firmware version metadata in enterprise switches and routers. IC Role / Device Role / Timing Role: High-reliability Flash with RDY/BUSY pin and Data Polling for robust host-controlled update coordination. Use Value: Erase Suspend allows immediate packet forwarding table lookup during background configuration reload - maintaining network uptime. |
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 | 16 Mbit, 70 ns, 3.0–3.6 V; no dual-plane or Erase Suspend; uses standard JEDEC command set | Lacks concurrent read/erase capability and sector suspend - requires full erase before partial update | Select when simpler command protocol and lower cost outweigh need for advanced update flexibility |
| MX29LV160DBTI-70G | 16 Mbit, 70 ns, 3.0–3.6 V; top-boot configuration only; no VPP acceleration or 128-bit protection register | Fixed boot-block layout limits partitioning flexibility; lacks hardware security features for OEM branding | Select for legacy design continuity where boot-block alignment matches existing PCB layout |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160DBTI-70G, the AT49LV1614A-70TI uniquely delivers dual-plane concurrency, Erase Suspend, and factory/user protection registers - making it optimal for systems requiring secure, granular, and non-disruptive firmware management.
Availability
AT49LV1614A-70TI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and medical device configuration storage requiring stable component supply across extended product lifecycles.
Supply support for AT49LV1614A-70TI 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 AT49LV series Flash memories, including long-term manufacturing, documentation, and technical resources.
The AT49LV1614A-70TI belongs to Microchip's legacy parallel-interface Flash memory product line, designed specifically for embedded systems requiring reliable, in-system programmable nonvolatile storage with flexible sector protection and accelerated update capabilities.
FAQ
What voltage levels does the AT49LV1614A-70TI support for VPP-accelerated programming?
The AT49LV1614A-70TI supports VPP-accelerated programming at either 5.0 V ± 0.5 V or 12.0 V ± 0.5 V. When VPP is within 0.3 V of VCC (2.65–3.3 V), the device automatically defaults to VCC-powered operation. The VPP pin may be left unconnected for standard-speed programming using only VCC - no external voltage source required unless faster erase/program times are needed.
How does the BYTE pin affect data bus configuration on the AT49LV1614A-70TI?
The BYTE pin on the AT49LV1614A-70TI determines interface width: logic high configures the device for x16 operation (I/O0–I/O15 active), while logic low enables x8 mode (I/O0–I/O7 active, I/O15 repurposed as LSB address input A-1). This allows direct compatibility with both 16-bit and 8-bit microcontroller buses without external glue logic - critical for flexible board reuse.
Can the AT49LV1614A-70TI perform read operations during an ongoing erase cycle?
Yes - the AT49LV1614A-70TI supports true concurrent read/erase via its dual-plane architecture. A read from Plane B can occur simultaneously with erase or program in Plane A, and vice versa. Additionally, Erase Suspend allows pausing an erase in one sector to read or program any other sector in the same plane - providing maximum system responsiveness during firmware updates.
What is the purpose and structure of the 128-bit protection register in the AT49LV1614A-70TI?
The AT49LV1614A-70TI includes a 128-bit protection register split into two 64-bit blocks: Block A is factory-programmed with a unique identifier and cannot be modified; Block B is user-programmable and optionally lockable. This enables secure device authentication, OEM branding, and tamper-resistant configuration storage - accessed via Product ID Entry command followed by address reads in the protected address space.
How is sector lockdown implemented and released on the AT49LV1614A-70TI?
Sector lockdown on the AT49LV1614A-70TI is enabled per sector using a six-byte command sequence. Once locked, the sector becomes read-only - immune to program or erase commands until reset or power cycle. Lockdown status is verified via software read of address 00002H within the sector (I/O0 = high indicates locked). Unlocking requires only hardware reset or power-down - no special unlock command is needed.
AT49LV1614A-70TI 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:
- 70 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
AT49LV1614A-70TI FAQ
1.How can I place an order for AT49LV1614A-70TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49LV1614A-70TI 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-70TI reliable?
The price and inventory of AT49LV1614A-70TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49LV1614A-70TI is usually 5 days.
3.What payment methods are accepted for AT49LV1614A-70TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49LV1614A-70TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49LV1614A-70TI?
AT49LV1614A-70TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49LV1614A-70TI 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-70TI?
For technical support, including AT49LV1614A-70TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49LV1614A-70TI requirements.
6.How does Aetrix verify that AT49LV1614A-70TI is sourced from the original manufacturer or authorized distributors?
All AT49LV1614A-70TI 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-70TI meets industry standards.
7.What is the process for return or replacement of AT49LV1614A-70TI?
All AT49LV1614A-70TI units undergo pre-shipment inspection (PSI). If there is an issue with AT49LV1614A-70TI, 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-70TI part is unused and in its original packaging.
Return procedure for AT49LV1614A-70TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49LV1614A-70TI Tags
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