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Microchip Technology AT49BV6416-70TI-T
- Part No.:
- AT49BV6416-70TI-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV6416-70TI-T.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT49BV6416-70TI-T from Microchip Technology is a 64-megabit (4M × 16) asynchronous flash memory IC operating from a single 2.7V–3.6V supply, featuring 70 ns read access time, sector erase architecture with eight 4K-word and 127×32K-word sectors, and four-plane concurrent read capability for embedded firmware storage in industrial controllers.
For engineers reviewing the AT49BV6416-70TI-T datasheet, AT49BV6416-70TI-T pinout, AT49BV6416-70TI-T application, or AT49BV6416-70TI-T equivalent, key selection criteria include TSOP-48 package compatibility, VPP-assisted accelerated programming, suspend/resume support during erase/program, CFI compliance for auto-configuration, and 2.2V I/O (VCCQ) option for low-power system integration.
Technical Context
The AT49BV6416-70TI-T implements a four-plane memory architecture enabling concurrent reads across three non-active planes during program/erase operations. Its command-set-driven interface uses six-bus-cycle sequences for sector/sector erase and softlock/hardlock configuration, with status detection via I/O5–I/O7 polling and toggle bits.
It supports dual-voltage operation: core logic at 2.7V–3.6V and I/O at 2.2V–3.6V via dedicated VCCQ, while hardware protection includes VPP-dependent write enable (10V for accelerated dual-word programming), RESET-initiated initialization, and WP-pin-gated hardlock sector protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), providing 8 MB of nonvolatile storage for boot code or firmware images. |
| Read Access Time | 70 ns asynchronous access - determines minimum instruction fetch latency in microcontroller boot loaders. |
| Page Read Time | 20 ns per word within 4-word page - enables burst-like sequential reads without full address re-latching. |
| Sector Erase Time | 200 ms (4K-word sectors) / 700 ms (32K-word sectors) - defines firmware update granularity and worst-case field upgrade duration. |
| Supply Voltage Range | 2.7V–3.6V VCC with independent 2.2V–3.6V VCCQ - allows I/O voltage scaling to match 2.5V or 3.3V host buses while maintaining core stability. |
| Active Current | 30 mA typical - impacts thermal design and power budgeting in always-on embedded systems. |
| Standby Current | 35 µA - enables low-power retention in battery-backed or energy-harvested applications. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade operation in programmable logic controllers and motor drives. |
Pinout & Package
AT49BV6416-70TI-T is housed in a 48-pin Thin Small Outline Package (TSOP Type I, 12mm × 20mm), compliant with JEDEC MO-141BA, with gull-wing leads and 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O0–I/O15 | Data bus (bidirectional) | 16-bit parallel interface for firmware read/write; supports byte/word addressing per JEDEC standard. |
| A0–A21 | Address inputs | 22-bit address bus supporting full 4M-word addressing; A0–A1 control page mode toggling. |
| CE | Chip Enable | Active-low chip select; enables device decoding in multi-chip memory maps or shared data buses. |
| OE | Output Enable | Active-low output gate; used with CE to prevent bus contention during read cycles. |
| WE | Write Enable | Active-low control for command latching and write strobing; participates in all command sequences. |
| RESET | Hardware reset input | Asynchronous initialization signal; forces high-impedance outputs and returns device to read mode. |
| WP | Write Protect | Hardware lock for Hardlock sectors; when low, prevents unlock even if software command issued. |
| VPP | Program voltage input | Enables accelerated dual-word programming at 10V; inhibits writes below 0.7V for safety. |
| VCCQ | I/O power supply | Independent 2.2V–3.6V rail for output drivers - decouples I/O voltage from core logic for mixed-voltage systems. |
| VCC | Core power supply | 2.7V–3.6V supply for internal logic, state machines, and flash array - must be stable before issuing commands. |
| GND | Ground reference | Dual ground pins (pins 24 & 48) reduce noise coupling between core and I/O sections. |
Key Features
| Feature | Design Value |
|---|---|
| Four-plane concurrent read | Allows real-time firmware execution from one plane while updating another - eliminates read stalls during field updates. |
| Erase/Program suspend/resume | Permits interrupting long erase (700 ms) or program cycles to service urgent reads - critical for deterministic real-time response. |
| Softlock/Hardlock sector protection | Enables runtime-configurable (Softlock) or hardware-enforced (Hardlock + WP) write protection - secures bootloader or calibration data. |
| Common Flash Interface (CFI) | Standardized query table at known addresses enables automatic driver generation and second-source compatibility in BSPs. |
| 128-bit user-programmable protection register | Block B supports secure serial numbers or keys; once locked, prevents reprogramming - meets basic anti-cloning requirements. |
| VCCQ-controlled I/O voltage | Reduces system-level power by allowing 2.2V I/O drive while maintaining 2.7V+ core reliability - extends battery life in portable devices. |
Applications
| Industrial PLC Firmware Storage | Medical Device Bootloader |
|---|---|
Use Scenario: Storing and updating ladder logic programs and configuration parameters in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile firmware storage with in-system reprogrammability; provides 70 ns read access for fast instruction fetch during scan cycles. Use Value: Sector erase architecture enables partial updates without full flash rewrites, reducing downtime during maintenance windows. | Use Scenario: Hosting certified bootloader and diagnostic firmware in Class II medical equipment requiring traceable, tamper-resistant code storage. IC Role / Device Role / Timing Role: Secure boot memory with Hardlock protection on bootloader sectors and CFI-based validation during power-up self-test. Use Value: 128-bit protection register and WP-gated Hardlock prevent unauthorized firmware modification - supports regulatory audit trails. |
| Automotive Infotainment Head Unit | Network Router Configuration Storage |
Use Scenario: Storing UI assets, map data, and firmware patches in automotive infotainment systems operating across –40°C to +85°C ambient. IC Role / Device Role / Timing Role: High-reliability flash memory with four-plane architecture enabling background OTA updates while rendering UI from active plane. Use Value: Concurrent read across planes avoids UI freezes during firmware downloads - improves perceived responsiveness. | Use Scenario: Retaining routing tables, security certificates, and configuration profiles in enterprise-grade network routers with zero-downtime failover requirements. IC Role / Device Role / Timing Role: Dual-rail (VCC/VCCQ) flash supporting 2.5V I/O interfacing with FPGA-based control planes and 3.3V core logic. Use Value: 35 µA standby current minimizes power draw during idle periods - extends uptime in fanless, thermally constrained chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6401B-70-4C-EKE | 64 Mbit (4M × 16), 70 ns access, 3.0V–3.6V only, no VCCQ, no four-plane architecture | Lacks concurrent read and suspend/resume - requires full erase before update; no 2.2V I/O option | Choose when VCCQ and plane concurrency are unnecessary and legacy 3.3V-only design exists. |
| MX29LV640ETTI-70G | 64 Mbit (4M × 16), 70 ns access, 2.7V–3.6V, supports CFI and sector protection, but no suspend/resume or VPP acceleration | No erase/program suspend - blocks all reads during long erase cycles; no accelerated programming path | Prefer when CFI compatibility is critical but real-time interruptibility is not required. |
Compared with SST39VF6401B-70-4C-EKE and MX29LV640ETTI-70G, the AT49BV6416-70TI-T uniquely delivers concurrent plane reads and suspend/resume - enabling deterministic firmware updates in time-critical systems - while its VCCQ and VPP features provide superior power and programming flexibility.
Availability
AT49BV6416-70TI-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device bootloader retention, automotive infotainment map updates, and network router configuration backup requiring stable component supply across extended product lifecycles.
Supply support for AT49BV6416-70TI-T 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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog components, and nonvolatile memory solutions for industrial, automotive, and communications markets.
The AT49BV6416-70TI-T belongs to Microchip's legacy parallel NOR flash product line, designed specifically for in-system programmable firmware storage in resource-constrained embedded systems requiring deterministic timing and robust data retention.
FAQ
What is the maximum operating temperature range for the AT49BV6416-70TI-T?
The AT49BV6416-70TI-T is rated for industrial operation from –40°C to +85°C. This range is validated per Microchip's qualification standards and ensures reliable data retention and command execution under thermal stress in programmable logic controllers, motor drives, and outdoor networking equipment. The AT49BV6416-70TI-T maintains full specification compliance-including 70 ns read timing and sector erase integrity-across this entire range.
Does the AT49BV6416-70TI-T support true concurrent read while programming or erasing?
Yes, the AT49BV6416-70TI-T supports true concurrent read: its four-plane architecture allows reads from any of the three planes not undergoing program or erase. For example, while Plane B is being erased, reads can occur simultaneously from Planes A, C, or D without latency penalty. This capability is intrinsic to the AT49BV6416-70TI-T's physical memory partitioning and does not require special command sequencing beyond standard read cycles.
How does the VPP pin function in the AT49BV6416-70TI-T?
The VPP pin on the AT49BV6416-70TI-T serves dual roles: it enables write protection when held below 0.7V (inhibiting all program/erase), and accelerates dual-word programming when set to 10.0V. At 10V, the AT49BV6416-70TI-T executes faster internal pulses, reducing programming time versus standard 3.3V operation. This VPP dependency is hardware-enforced - no software override exists - making it a critical design consideration for power supply routing and voltage regulation in the AT49BV6416-70TI-T circuit.
Can the AT49BV6416-70TI-T be used with a 2.5V I/O interface?
Yes, the AT49BV6416-70TI-T supports 2.5V I/O via its dedicated VCCQ pin, which accepts 2.2V–3.6V. When VCCQ = 2.5V, output high levels are guaranteed at VCCQ − 0.1V (2.4V min), and inputs tolerate 0–5.5V - enabling direct interfacing with 2.5V FPGAs or ASICs without level shifters. This capability is explicitly defined in the AT49BV6416-70TI-T datasheet Section 3.14 and confirmed in the Absolute Maximum Ratings table.
What is the purpose of the 128-bit protection register in the AT49BV6416-70TI-T?
The AT49BV6416-70TI-T's 128-bit protection register comprises two 64-bit blocks: Block A (factory-programmed, immutable serial number) and Block B (user-programmable, lockable). Once Block B is locked via the Lock Protection Register command, its contents - such as cryptographic keys or calibration constants - become permanently read-only. This feature provides hardware-enforced data integrity for security-critical applications, and is accessible only after entering Product ID mode - a deliberate design choice to prevent accidental overwrite in the AT49BV6416-70TI-T.
AT49BV6416-70TI-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 64Mbit
- Memory Organization:
- 4M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 15µs
- Access Time:
- 70 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
AT49BV6416-70TI-T FAQ
1.How can I place an order for AT49BV6416-70TI-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV6416-70TI-T 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 AT49BV6416-70TI-T reliable?
The price and inventory of AT49BV6416-70TI-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV6416-70TI-T is usually 5 days.
3.What payment methods are accepted for AT49BV6416-70TI-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV6416-70TI-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV6416-70TI-T?
AT49BV6416-70TI-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV6416-70TI-T 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 AT49BV6416-70TI-T?
For technical support, including AT49BV6416-70TI-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV6416-70TI-T requirements.
6.How does Aetrix verify that AT49BV6416-70TI-T is sourced from the original manufacturer or authorized distributors?
All AT49BV6416-70TI-T 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 AT49BV6416-70TI-T meets industry standards.
7.What is the process for return or replacement of AT49BV6416-70TI-T?
All AT49BV6416-70TI-T units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV6416-70TI-T, 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 AT49BV6416-70TI-T part is unused and in its original packaging.
Return procedure for AT49BV6416-70TI-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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