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Microchip Technology AT49LV1614AT-70CI
- Part No.:
- AT49LV1614AT-70CI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA, CSPBGA
- Datasheet:
-
AT49LV1614AT-70CI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48CBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT49LV1614AT-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 AT49LV1614AT-70CI datasheet, AT49LV1614AT-70CI pinout, AT49LV1614AT-70CI application, or AT49LV1614AT-70CI equivalent, key selection criteria include sector lockdown support, erase suspend functionality, VPP-accelerated program/erase timing, and TSOP/CBGA package compatibility with byte/word mode selection via BYTE pin.
Technical Context
The AT49LV1614AT-70CI 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 features 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 a 128-bit protection register with factory-programmed Block A and user-programmable/lockable Block B.
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 ±0.3 V variation |
| Active Current | 30 mA - enables low-power operation during active reads in battery-backed or energy-constrained systems |
| Standby Current | 10 µA - supports ultra-low-power retention in always-on embedded applications |
| Program Time | 20 µs per word - enables rapid field firmware patching without system interruption |
| Erase Time | 300 ms per sector - balances speed and reliability for secure sector-level updates |
Pinout & Package
AT49LV1614AT-70CI 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 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 initiates command sequences |
| RDY/BUSY | Open-Drain Status Output | Shared ready/busy signaling across multiple devices via wired-OR topology |
| 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 connection |
| RESET | Hardware Initialization Input | Forces device into read/standby mode and halts ongoing operations - critical for safe recovery |
| BYTE | Interface Mode Select | Logic high = x16 word mode; logic low = x8 byte mode with I/O8–I/O14 tri-stated |
| VCCQ | Output Driver Power | Independent supply for I/O drivers - allows mixed-voltage interfacing (e.g., 3.3 V core, 1.8 V I/O) |
Key Features
| Feature | Design Value |
|---|---|
| Dual-plane concurrent read/program | Enables background firmware update in one memory plane while executing boot code from the other - no CPU stall required |
| Erase suspend/resume | Interrupts sector erase to service urgent read/program requests in non-suspended sectors - improves real-time responsiveness |
| Sector lockdown | Per-sector write-protection lock activated via command; prevents accidental overwrite of critical boot code or calibration data |
| 128-bit protection register | Factory-programmed unique ID (Block A) + user-configurable secure key storage (Block B) - supports anti-cloning and secure boot |
| VPP-accelerated programming | Reduces program time by up to 40% when 5 V or 12 V applied to VPP - accelerates production programming and field updates |
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 temperature environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic 70 ns read access to initialize MCU and peripherals at power-up. Use Value: Sector lockdown protects bootloader integrity; dual-plane operation allows runtime firmware validation without halting control execution. | Use Scenario: Holding secure boot code and cryptographic keys in enterprise-grade routers requiring tamper-resistant storage. IC Role / Device Role / Timing Role: Trusted execution root-of-trust component with 128-bit protection register and hardware lockdown. Use Value: Block B lockability prevents unauthorized key modification; RDY/BUSY signaling synchronizes secure boot verification with host processor. |
| Medical Device Configuration Storage | Automotive Infotainment Update Cache |
Use Scenario: Retaining calibrated sensor offsets and regulatory-compliant operational parameters in portable diagnostic equipment. IC Role / Device Role / Timing Role: Field-updatable parameter store with sector-level erase isolation to preserve unmodified calibration data. Use Value: Erase suspend allows immediate retrieval of active calibration values during partial reprogramming - ensures continuous measurement validity. | Use Scenario: Caching over-the-air (OTA) firmware patches in automotive head units before atomic installation. IC Role / Device Role / Timing Role: High-reliability intermediate storage with accelerated VPP-programming for fast patch ingestion. Use Value: 20 µs word programming and 300 ms sector erase enable sub-second OTA staging - minimizing vehicle downtime. |
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 3.0–3.6 V supply; 70 ns access; 16 Mbit density; 32 × 512 KB uniform sectors (no small boot sectors) | Lacks sector lockdown, erase suspend, and dual-plane concurrency - unsuitable for secure or real-time update scenarios | Select only if boot code protection and concurrent operation are not required; verify PCB layout for 48-TSOP footprint compatibility |
| MX29LV160DBTI-70G | 3.0–3.6 V; 70 ns; 16 Mbit; top/bottom boot block; 1 × 16 KB + 2 × 8 KB + 31 × 64 KB sector architecture | Supports boot block protection but no erase suspend or dual-plane read/program - limited real-time flexibility | Prefer when legacy pinout compatibility with older Spansion designs is needed; confirm RESET behavior matches host timing requirements |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160DBTI-70G, the AT49LV1614AT-70CI uniquely delivers concurrent dual-plane operation and hardware-enforced sector lockdown - enabling secure, interruptible firmware updates essential for safety-critical and real-time embedded systems.
Availability
AT49LV1614AT-70CI is available at Aetrix Electronics and suitable for industrial PLCs, network infrastructure equipment, medical diagnostics, and automotive infotainment systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for AT49LV1614AT-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 acquired Atmel in 2016 and maintains full support for legacy Atmel Flash products including the AT49LV series. The company specializes in secure, reliable microcontrollers and non-volatile memory for industrial and automotive markets.
The AT49LV1614AT-70CI belongs to Atmel's legacy parallel-interface Flash memory product line, designed specifically for embedded systems requiring robust in-system programmability, sector-level security, and deterministic timing in extended temperature environments.
FAQ
What voltage range does the AT49LV1614AT-70CI support for normal operation?
The AT49LV1614AT-70CI operates from 3.0 V to 3.6 V for both read and write functions. Its VCC supply must remain within this range during active operation. The VPP pin accepts either 5.0 V ± 0.5 V or 12.0 V ± 0.5 V to accelerate program/erase cycles, but VPP is optional and may be left unconnected for standard-speed operation. The AT49LV1614AT-70CI includes built-in VCC sense circuitry that inhibits programming if VCC drops below ~1.8 V.
How does the BYTE pin affect the interface behavior of the AT49LV1614AT-70CI?
The BYTE pin determines whether the AT49LV1614AT-70CI operates in 16-bit word mode (BYTE = high) or 8-bit byte mode (BYTE = low). In word mode, I/O0–I/O15 are active and A-1 addressing is disabled. In byte mode, only I/O0–I/O7 drive data, I/O8–I/O14 are tri-stated, and I/O15 serves as the LSB address input (A-1). This dual-mode flexibility allows the AT49LV1614AT-70CI to interface with both 16-bit and 8-bit microprocessor buses without external glue logic.
Can the AT49LV1614AT-70CI perform read operations during an erase cycle?
Yes - the AT49LV1614AT-70CI supports concurrent read/erase due to its dual-plane architecture. Reads from Plane B can occur while erasing Plane A, and vice versa. Additionally, the erase suspend feature allows temporary halting of an erase operation in one sector to read or program any other sector in the same plane. The RDY/BUSY pin, Data Polling (I/O7), or Toggle Bit (I/O6) signals indicate when the AT49LV1614AT-70CI is ready for the next command.
What is the purpose of the 128-bit protection register in the AT49LV1614AT-70CI?
The 128-bit protection register in the AT49LV1614AT-70CI consists of two 64-bit blocks: Block A is factory-programmed with a unique, non-modifiable identifier; Block B is user-programmable and can be permanently locked to prevent further writes. This structure supports secure boot authentication, device serialization, and cryptographic key storage. Access requires entering Product ID mode followed by specific address reads - ensuring the AT49LV1614AT-70CI meets basic hardware-root-of-trust requirements in regulated applications.
Does the AT49LV1614AT-70CI support sector-level write protection, and how is it enabled?
Yes - the AT49LV1614AT-70CI provides per-sector lockdown via a six-bus-cycle command sequence. Once enabled, a locked sector becomes read-only: its contents cannot be erased or programmed until the next power cycle or hardware reset. Lockdown is optional and applied individually to any of the 39 sectors. The AT49LV1614AT-70CI includes software detection to verify lockdown status by reading address 00002H within a sector - where I/O0 = high indicates active protection. This feature safeguards boot code and calibration data against accidental corruption.
AT49LV1614AT-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)
AT49LV1614AT-70CI FAQ
1.How can I place an order for AT49LV1614AT-70CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49LV1614AT-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 AT49LV1614AT-70CI reliable?
The price and inventory of AT49LV1614AT-70CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49LV1614AT-70CI is usually 5 days.
3.What payment methods are accepted for AT49LV1614AT-70CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49LV1614AT-70CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49LV1614AT-70CI?
AT49LV1614AT-70CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49LV1614AT-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 AT49LV1614AT-70CI?
For technical support, including AT49LV1614AT-70CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49LV1614AT-70CI requirements.
6.How does Aetrix verify that AT49LV1614AT-70CI is sourced from the original manufacturer or authorized distributors?
All AT49LV1614AT-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 AT49LV1614AT-70CI meets industry standards.
7.What is the process for return or replacement of AT49LV1614AT-70CI?
All AT49LV1614AT-70CI units undergo pre-shipment inspection (PSI). If there is an issue with AT49LV1614AT-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 AT49LV1614AT-70CI part is unused and in its original packaging.
Return procedure for AT49LV1614AT-70CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49LV1614AT-70CI Tags
-
M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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