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Microchip Technology AT49BV1614A-90TI
- Part No.:
- AT49BV1614A-90TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV1614A-90TI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT49BV1614A-90TI from Microchip Technology (formerly Atmel) is a 16-megabit (1M × 16 / 2M × 8) 3.3V Flash memory IC with dual-plane architecture, 39-sector erase organization (31 × 64KB + 8 × 8KB), 90 ns access time, and sector lockdown support. It enables in-system programming for embedded boot code storage in industrial controllers and communication modules.
For engineers reviewing the AT49BV1614A-90TI datasheet, AT49BV1614A-90TI pinout, AT49BV1614A-90TI application, or AT49BV1614A-90TI equivalent, key selection criteria include its 2.65–3.3V single-supply operation, erase-suspend capability across memory planes, VPP-accelerated program/erase, 128-bit protection register, and TSOP/CBGA package compatibility.
Technical Context
The AT49BV1614A-90TI 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 permits concurrent read from one plane while program/erase executes in the other - eliminating wait states during firmware updates.
It supports hardware- and software-based sector lockdown, 128-bit factory/user-programmable protection register (with lockable Block B), and three end-of-operation detection methods: RDY/BUSY open-drain output, Data Polling on I/O7, and Toggle Bit on I/O6/I/O2. VPP pin accepts 5V ±0.5V or 12V ±0.5V to accelerate program (20 µs) and sector erase (300 ms) cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16 or 2,097,152 × 8), enabling compact boot storage for 32-bit microcontrollers |
| Access Time | 90 ns max - meets timing requirements for 11 MHz bus interfaces without wait states |
| Supply Voltage | 2.65V to 3.3V - compatible with modern low-voltage logic and eliminates need for level shifters |
| Active Current | 30 mA - supports power-constrained embedded systems during active read operations |
| Standby Current | 10 µA - enables ultra-low-power retention in battery-backed applications |
| Sector Erase Time | 300 ms max - allows rapid field firmware patching of individual functional blocks |
| Program Time | 20 µs per word - accelerates in-system programming when combined with VPP = 5V/12V |
Pinout & Package
AT49BV1614A-90TI is available in 48-lead TSOP Type 1 (JEDEC MO-141AC) and 48-ball CBGA (ball pitch 0.8 mm) packages. Both packages support identical pin functions and dual-plane addressing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word x16 or 2M-byte x8 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 byte/word interface via BYTE pin; I/O15 serves as LSB address input in byte mode |
| CE, OE, WE | Chip Enable, Output Enable, Write Enable | Dual-line control (CE+OE) prevents bus contention; WE latches command sequences and data |
| RDY/BUSY | Open-drain status output | Allows OR-tying multiple devices; actively pulled low during internal program/erase cycles |
| VPP | Accelerated Program/Erase Supply | Accepts 5V±0.5V or 12V±0.5V to reduce program time to 20 µs and sector erase to 300 ms |
| BYTE | Interface Mode Select | Logic high = x16 word mode (I/O0–I/O15 active); logic low = x8 byte mode (I/O0–I/O7 active, I/O15 = A-1) |
| RESET | Hardware Initialization | Pulls outputs to high-Z and aborts ongoing operations; required to exit Single Pulse Program mode |
Key Features
| Feature | Design Value |
|---|---|
| Dual-plane concurrent read/program | Enables real-time firmware update verification without halting system execution |
| Erase suspend/resume | Interrupts sector erase to service urgent read/program requests in other sectors of same plane |
| 128-bit protection register | Factory-programmed 64-bit Block A + user-programmable/lockable 64-bit Block B for secure boot authentication |
| Sector lockdown | Per-sector write-protection activated via six-cycle command; unlocked only by power cycle or RESET |
| Hardware data protection | VCC sense, 10 ms power-on delay, noise filtering (<15 ns), and control-line inhibit prevent accidental writes |
Applications
| Industrial PLC Firmware Storage | Telecom Baseband Boot Memory |
|---|---|
Use Scenario: Storing boot loader and configuration data in programmable logic controllers operating in harsh environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile boot memory providing deterministic 90 ns read access to initialize ARM Cortex-M7 processors at power-up. Use Value: Sector lockdown protects critical startup code from corruption during field firmware upgrades; dual-plane operation allows background parameter logging while booting. | Use Scenario: Holding baseband processor firmware in 4G/LTE small cell radios requiring secure, field-upgradable memory with tamper resistance. IC Role / Device Role / Timing Role: Secure Flash storage with 128-bit protection register used to authenticate firmware signatures before execution. Use Value: Factory-programmed Block A and user-lockable Block B enable hierarchical security; VPP acceleration reduces OTA update time by >40% vs. VCC-only programming. |
| Medical Imaging System BIOS | Automotive ADAS Camera Module |
Use Scenario: Storing diagnostic BIOS and calibration tables in portable ultrasound machines where data integrity and low standby power are critical. IC Role / Device Role / Timing Role: Low-power (10 µA standby) Flash memory retaining configuration across battery-powered operation cycles. Use Value: Erase suspend allows immediate response to emergency sensor interrupts while preserving ongoing flash maintenance tasks; RDY/BUSY pin simplifies interrupt-driven polling. | Use Scenario: Embedded boot memory in automotive surround-view camera ECUs requiring AEC-Q100 Grade 3 qualification and robust ESD immunity. IC Role / Device Role / Timing Role: Qualified Flash device storing camera initialization routines and lens correction profiles accessed at system startup. Use Value: 39-sector architecture isolates safety-critical boot code (top/bottom boot block) from application firmware; TSOP package supports automated optical inspection in high-reliability assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF1601C-90-4C-EKE | 16 Mbit, 3.0–3.6V, 90 ns, 48-TSOP, no VPP pin, no dual-plane concurrency | Lacks erase suspend and concurrent read/program; simpler command set | Select when VPP acceleration and dual-plane operation are unnecessary and cost sensitivity outweighs feature depth |
| MX29LV160DBTI-90G | 16 Mbit, 3.0–3.6V, 90 ns, 48-TSOP, top/bottom boot, no VPP, no 128-bit protection register | Boot-block architecture optimized for x86 BIOS; lacks sector lockdown and protection register | Prefer for legacy PC-compatible boot applications where Atmel-specific security features are unused |
Compared with SST39VF1601C-90-4C-EKE and MX29LV160DBTI-90G, the AT49BV1614A-90TI delivers unique value through its dual-plane concurrency, VPP-accelerated programming, and 128-bit protection register - making it optimal for secure, real-time embedded systems requiring field-upgradable firmware with guaranteed boot integrity.
Availability
AT49BV1614A-90TI is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, medical imaging, and automotive ADAS applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for AT49BV1614A-90TI 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 AT49BV/LV series.
The AT49BV1614A-90TI belongs to Atmel's BV/LV16X4A Flash family, designed specifically for in-system programmable boot memory in resource-constrained embedded systems requiring high reliability, sector-level security, and low-voltage operation.
FAQ
What voltage range does the AT49BV1614A-90TI support for normal operation?
The AT49BV1614A-90TI operates from 2.65V to 3.3V for the BV variant (as indicated by "BV" in the part number). It does not support 3.0–3.6V operation - that range applies only to the LV variant (e.g., AT49LV1614A). The "-90" suffix denotes 90 ns access time, and "TI" indicates industrial temperature grade (–40°C to +85°C). All electrical characteristics in the datasheet are specified under this 2.65–3.3V range.
Does the AT49BV1614A-90TI support both byte and word data interfaces?
Yes, the AT49BV1614A-90TI supports configurable x8 and x16 interfaces via the BYTE pin. When BYTE = logic high, it operates in 16-bit word mode with I/O0–I/O15 active. When BYTE = logic low, it operates in 8-bit byte mode: I/O0–I/O7 carry data, and I/O15 functions as the LSB address input (A-1). This flexibility allows direct connection to 8-bit or 16-bit microcontroller buses without external glue logic.
How does the dual-plane architecture of the AT49BV1614A-90TI improve system performance?
The AT49BV1614A-90TI's dual-plane architecture divides memory into Plane A (15 sectors) and Plane B (24 sectors), enabling simultaneous read from one plane while program/erase executes in the other. This eliminates CPU idle time during firmware updates - for example, a host processor can fetch real-time sensor data from Plane B while writing new calibration parameters to Plane A. No additional hardware or software arbitration is required.
What is the purpose of the VPP pin on the AT49BV1614A-90TI, and what voltages are valid?
The VPP pin on the AT49BV1614A-90TI accelerates internal program and erase operations. When VPP = 5.0V ± 0.5V or 12.0V ± 0.5V (and VCC remains at 2.65–3.3V), program time reduces to 20 µs and sector erase time to 300 ms - significantly faster than VCC-only operation. If left unconnected or tied to VCC, the device uses VCC for programming/erasing. VPP must never exceed 13.0V relative to ground.
Can sector lockdown on the AT49BV1614A-90TI be reversed without power cycling?
No. Once a sector is locked down using the six-bus-cycle Sector Lockdown command, it remains read-only until the device undergoes a hardware reset (RESET pin pulsed low ≥500 ns) or a full power cycle. There is no software command to unlock a protected sector. This design ensures that critical boot code cannot be inadvertently overwritten during field updates - a requirement for safety-certified systems like medical or industrial controllers.
AT49BV1614A-90TI 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:
- 90 ns
- Voltage - Supply:
- 2.65V ~ 3.3V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
AT49BV1614A-90TI FAQ
1.How can I place an order for AT49BV1614A-90TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV1614A-90TI 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 AT49BV1614A-90TI reliable?
The price and inventory of AT49BV1614A-90TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV1614A-90TI is usually 5 days.
3.What payment methods are accepted for AT49BV1614A-90TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV1614A-90TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV1614A-90TI?
AT49BV1614A-90TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV1614A-90TI 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 AT49BV1614A-90TI?
For technical support, including AT49BV1614A-90TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV1614A-90TI requirements.
6.How does Aetrix verify that AT49BV1614A-90TI is sourced from the original manufacturer or authorized distributors?
All AT49BV1614A-90TI 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 AT49BV1614A-90TI meets industry standards.
7.What is the process for return or replacement of AT49BV1614A-90TI?
All AT49BV1614A-90TI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV1614A-90TI, 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 AT49BV1614A-90TI part is unused and in its original packaging.
Return procedure for AT49BV1614A-90TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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