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Microchip Technology AT49LV1614AT-70TI
- Part No.:
- AT49LV1614AT-70TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49LV1614AT-70TI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,622
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Product details
Overview
AT49LV1614AT-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/erase capability, and Erase Suspend functionality. It supports in-system programming in embedded controllers and boot code storage applications.
For engineers reviewing the AT49LV1614AT-70TI datasheet, AT49LV1614AT-70TI pinout, AT49LV1614AT-70TI application, or AT49LV1614AT-70TI equivalent, key selection criteria include its 70 ns read timing, byte/word mode select via BYTE pin, TSOP/CBGA package options, VPP-accelerated program/erase, and sector lockdown for secure boot code protection.
Technical Context
The AT49LV1614AT-70TI 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. This enables concurrent read from one plane while programming or erasing the other - eliminating wait states during firmware updates.
It uses command-based operation (e.g., six-byte Chip Erase, four-byte Program Protection Register) with hardware data protection including VCC sense, 10 ms power-on delay, noise filtering on WE/CE, and input-level tolerance up to 5.5 V on address/control pins. RDY/BUSY, Data Polling (I/O7), and Toggle Bit (I/O6/I/O2) provide three independent end-of-operation detection methods.
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 |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V system rails |
| Active Current | 30 mA - low power consumption during active read operations |
| Standby Current | 10 µA - enables ultra-low-power retention in sleep modes |
| Sector Erase Time | 300 ms max - enables fast partial reprogramming without full chip erase |
| Program Time | 20 µs per word - supports high-throughput firmware patching |
Pinout & Package
AT49LV1614AT-70TI is available in 48-lead TSOP (Type 1) and 48-ball CBGA packages. Pin functions are identical across both packages except for physical layout; ball/pin numbering differs but signal mapping is consistent.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A-1 used only in byte mode on I/O15 |
| 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 | Dual-line control (CE+OE) prevents bus contention; WE initiates command sequences |
| RDY/BUSY | Open-drain status output | Active-low signal indicates internal program/erase activity; supports wired-OR multi-device monitoring |
| VPP | Accelerated program/erase supply | Accepts 5.0 V ± 0.5 V or 12.0 V ± 0.5 V to reduce program/erase times; optional (can be unconnected) |
| RESET | Hardware initialization | Forces device into read/standby mode and halts ongoing operations; required to exit Single Pulse Program mode |
| BYTE | Interface width selector | Logic "1" = x16 mode (I/O0–I/O15 active); Logic "0" = x8 mode (I/O0–I/O7 active, I/O15 = A-1) |
| VCCQ | Output driver supply | Independent output voltage rail; decouples I/O drive strength from core VCC for mixed-voltage systems |
Key Features
| Feature | Design Value |
|---|---|
| Dual-plane concurrent operation | Enables simultaneous read from one memory plane while programming/erasing the other - improves system responsiveness during firmware updates |
| Erase Suspend/Resume | Halts active sector erase to allow immediate read/program of other sectors - critical for real-time interrupt handling during flash maintenance |
| Sector Lockdown | Per-sector write-protection activated via command; preserves boot code integrity while allowing field-upgradable application partitions |
| 128-bit Protection Register | Factory-programmed 64-bit block A + user-programmable/lockable 64-bit block B - supports secure device identification and anti-cloning |
| Three end-of-operation detection methods | RDY/BUSY pin, Data Polling (I/O7), and Toggle Bit (I/O6/I/O2) provide redundant, software- and hardware-accessible status signaling |
Applications
| Boot Code Storage | Firmware Update Module |
|---|---|
Use Scenario: Storing primary bootloader and BIOS/UEFI firmware in industrial PLCs and network routers. IC Role / Device Role / Timing Role: Non-volatile boot memory mapped directly to CPU address space; accessed at power-on reset with strict 70 ns timing compliance. Use Value: Sector lockdown prevents accidental overwrite of boot code; dual-plane operation allows background firmware validation while system remains responsive. | Use Scenario: Field-upgradable application firmware in medical diagnostic equipment requiring zero-downtime patching. IC Role / Device Role / Timing Role: In-system programmable Flash memory supporting over-the-air (OTA) updates via microcontroller host interface. Use Value: Erase Suspend enables immediate interrupt servicing during sector erase; 20 µs word program time minimizes update window. |
| Secure Embedded Controller | Industrial HMI Storage |
Use Scenario: Secure credential storage and cryptographic key management in payment terminals and access control systems. IC Role / Device Role / Timing Role: Protected memory partition hosting encrypted keys and secure boot images; accessed via dedicated MCU DMA channel. Use Value: 128-bit protection register (factory + user blocks) enables device binding and tamper-resistant identity; sector lockdown enforces immutable root-of-trust. | Use Scenario: Storing GUI assets, configuration profiles, and localized language strings in factory-floor HMIs. IC Role / Device Role / Timing Role: Local non-volatile storage for UI resources, accessed by ARM Cortex-M host via parallel x16 interface. Use Value: 31 × 64 KB + 8 × 8 KB sector architecture allows granular updates of individual language packs without full memory reflash. |
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 VPP pin; single-plane architecture; lacks Erase Suspend | Lower cost for basic boot storage where concurrent read/erase is unnecessary | Select when dual-plane operation and Erase Suspend are not required; verify absence of VPP dependency in existing design |
| MX29LV160DBTI-70G | 16 Mbit, 70 ns, 3.0–3.6 V; top/bottom boot configuration; no BYTE pin; different command set | Compatible for legacy designs using standard AMD/Fujitsu command protocol | Choose for drop-in replacement in AMD-compatible systems; requires firmware adaptation for sector lock and protection register features |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160DBTI-70G, the AT49LV1614AT-70TI uniquely delivers dual-plane concurrency and Erase Suspend - enabling real-time interrupt response during flash maintenance - while its BYTE pin and VPP acceleration support flexible system-level power and timing optimization.
Availability
AT49LV1614AT-70TI is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics equipment, and secure embedded controllers requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for AT49LV1614AT-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 is a global semiconductor company specializing in microcontrollers, analog devices, Flash memory, and security solutions for industrial, automotive, and communications markets.
The AT49LV1614AT-70TI belongs to Microchip's legacy parallel Flash memory product line, designed specifically for reliable, in-system programmable boot code and firmware storage in resource-constrained embedded systems.
FAQ
What is the operating voltage range for AT49LV1614AT-70TI?
The AT49LV1614AT-70TI operates from 3.0 V to 3.6 V. This single-supply range eliminates need for separate I/O and core rails, simplifying power design. The device also tolerates input voltages up to 5.5 V on address and control pins - enabling direct interfacing with 5 V logic without level shifters. VPP is optional and can be left unconnected unless accelerated program/erase is required.
How does the BYTE pin affect AT49LV1614AT-70TI operation?
The BYTE pin determines data bus width: logic "1" configures AT49LV1614AT-70TI for x16 mode (I/O0–I/O15 active), while logic "0" selects x8 mode (I/O0–I/O7 active, I/O15 repurposed as LSB address A-1). This flexibility allows the same AT49LV1614AT-70TI part to serve both 16-bit microcontrollers and 8-bit hosts without redesign - reducing BOM complexity and inventory overhead.
Does AT49LV1614AT-70TI support concurrent read and erase operations?
Yes - AT49LV1614AT-70TI implements a dual-plane architecture that permits reading from one memory plane while erasing or programming the other. Plane A contains eight 4K-word and seven 32K-word sectors; Plane B contains twenty-four 32K-word sectors. This concurrency eliminates system stalls during firmware updates, making AT49LV1614AT-70TI ideal for real-time embedded applications requiring uninterrupted operation.
What methods are available to detect completion of program or erase cycles on AT49LV1614AT-70TI?
AT49LV1614AT-70TI provides three independent detection methods: (1) RDY/BUSY open-drain pin (active-low), (2) Data Polling on I/O7 (complement-to-data during operation), and (3) Toggle Bit on I/O6 (or I/O2 during suspend). These offer hardware- and software-accessible status reporting - enabling flexible system integration whether using polling loops, interrupts, or external logic monitoring.
Can AT49LV1614AT-70TI protect specific sectors from accidental overwrite?
Yes - AT49LV1614AT-70TI supports per-sector lockdown via a six-bus-cycle command. Once enabled, a locked sector becomes read-only until next power cycle or RESET assertion. This feature is essential for safeguarding boot code and calibration data. Additionally, the 128-bit protection register (with factory-block A and user-lockable block B) provides hardware-enforced device identity and secure key storage - enhancing system-level security beyond basic sector locking.
AT49LV1614AT-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
AT49LV1614AT-70TI FAQ
1.How can I place an order for AT49LV1614AT-70TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49LV1614AT-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 AT49LV1614AT-70TI reliable?
The price and inventory of AT49LV1614AT-70TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49LV1614AT-70TI is usually 5 days.
3.What payment methods are accepted for AT49LV1614AT-70TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49LV1614AT-70TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49LV1614AT-70TI?
AT49LV1614AT-70TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49LV1614AT-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 AT49LV1614AT-70TI?
For technical support, including AT49LV1614AT-70TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49LV1614AT-70TI requirements.
6.How does Aetrix verify that AT49LV1614AT-70TI is sourced from the original manufacturer or authorized distributors?
All AT49LV1614AT-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 AT49LV1614AT-70TI meets industry standards.
7.What is the process for return or replacement of AT49LV1614AT-70TI?
All AT49LV1614AT-70TI units undergo pre-shipment inspection (PSI). If there is an issue with AT49LV1614AT-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 AT49LV1614AT-70TI part is unused and in its original packaging.
Return procedure for AT49LV1614AT-70TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49LV1614AT-70TI Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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