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Microchip Technology AT49BV6416CT-70CI
- Part No.:
- AT49BV6416CT-70CI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-VFBGA, CSPBGA
- Datasheet:
-
AT49BV6416CT-70CI.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48CBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,059
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Product details
Overview
AT49BV6416CT-70CI 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-based erase architecture with eight 4K-word boot sectors and 127 × 32K-word main sectors, and four-plane concurrent read capability. It supports in-system programming for embedded firmware storage in industrial controllers and communication modules.
For engineers reviewing the AT49BV6416CT-70CI datasheet, AT49BV6416CT-70CI pinout, AT49BV6416CT-70CI application, or AT49BV6416CT-70CI equivalent, key selection considerations include its 70 ns asynchronous access, suspend/resume functionality for overlapping program/erase and read operations, CFI-compliant configuration querying, 128-bit protection register, and CBGA package compatibility with high-density PCB layouts.
Technical Context
The AT49BV6416CT-70CI implements a four-plane memory architecture enabling concurrent reads across three non-active planes during program/erase of the fourth, reducing system latency. Its Write State Machine (WSM) manages command execution, status reporting via I/O7–I/O0, and hardware-enforced data protection using VPP voltage sensing and WP pin control.
It supports dual-bus-cycle command sequences for sector lock/unlock, plane/sector erase, word programming, and CFI query mode entry (0x98). Erase suspend (0xB0) and resume (0xD0) operate per-plane without requiring address latching, while status register bits SR7 (WSMS), SR6 (ESS), and SR2 (PSS) provide real-time operation state visibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), providing 8 MB of nonvolatile storage for firmware images or configuration data. |
| Access Time | 70 ns asynchronous read - determines minimum bus cycle timing for CPU or FPGA interface without wait states. |
| Supply Voltage | 2.7V–3.6V VCC - enables direct integration with 3.3V logic systems without level-shifting. |
| Erase Architecture | Eight 4K-word boot sectors + 127 × 32K-word main sectors - allows selective firmware update without full chip erase. |
| Suspend Capability | Erase and program suspend/resume - permits background read access during long-duration erase (700 ms typical for 32K-word sector). |
| Protection Features | Softlock/Hardlock sector locking + 128-bit user-programmable protection register - secures bootloader or calibration data against accidental overwrite. |
| Interface Standard | Common Flash Interface (CFI) compliant - enables automatic device detection and parameter negotiation in BIOS/bootloader software. |
Pinout & Package
AT49BV6416CT-70CI is housed in a 48-pin CBGA (7 mm × 10 mm) package with perimeter I/O layout optimized for signal integrity and thermal dissipation in compact embedded designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O0–I/O15 | Data Inputs/Outputs | 16-bit bidirectional data bus; supports byte-wide access when A0 is low/high; outputs driven to VCCQ − 0.1V. |
| A0–A21 | Address Inputs | 22-bit address bus; A21–A20 select memory plane (A–D); A19–A0 select word within plane. |
| CE | Chip Enable | Active-low chip select; must be low with OE low and WE high for read; inhibits all operations when high. |
| OE | Output Enable | Active-low output control; places I/O pins in high-Z when high; used with CE to prevent bus contention. |
| WE | Write Enable | Active-low write strobe; latches addresses/data during command sequences; must be high for read mode. |
| WP | Write Protect | Hardware lock override for Hardlock sectors; low = permanent read-only; high = unlockable via software command. |
| VPP | Program/Erase Power | Enables accelerated programming/erase at 12.0V; inhibits all write operations if <0.7V; monitored by SR3 (VPPS). |
| RESET | Device Initialization | Active-low reset; halts ongoing operations and forces high-Z outputs; returns device to read mode on rising edge. |
| VCCQ | Output Power Supply | Separate 2.7V–3.6V supply for I/O drivers; decouples core logic voltage from output swing requirements. |
Key Features
| Feature | Design Value |
|---|---|
| Four-plane concurrent read | Enables uninterrupted data fetch from three planes while one undergoes erase/program - eliminates system stalls in real-time applications. |
| Erase/program suspend/resume | Allows interruption of 700 ms sector erase or multi-word programming to service urgent read requests - improves deterministic response in safety-critical systems. |
| Flexible sector protection | Independent Softlock (software-unlockable) and Hardlock (WP-gated) modes per sector - supports secure bootloader + field-upgradable application partitioning. |
| CFI-compliant interface | Standardized query table accessible via 0x98 command - enables plug-and-play compatibility with generic flash drivers in UEFI, Linux MTD, or RTOS BSPs. |
| 128-bit protection register | Factory-programmed 64-bit block A + user-writable/lockable block B - provides cryptographic key storage or device-unique ID with tamper resistance. |
Applications
| Industrial PLC Firmware Storage | Telecom Baseband Configuration |
|---|---|
|
Use Scenario: Storing firmware images and runtime parameters in programmable logic controllers deployed in factory automation environments with wide temperature ranges. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast 70 ns read access and sector-erase granularity to support partial firmware updates without system downtime. Use Value: Eliminates need for external EEPROM or serial flash for configuration retention, reducing BOM count and board space while maintaining 100K erase/write cycle endurance. |
Use Scenario: Holding baseband processor configuration tables, calibration coefficients, and protocol stack parameters in 4G/LTE small cell radios. IC Role / Device Role / Timing Role: High-reliability parallel flash interfaced directly to ARM Cortex-A series processors via static memory controller with CFI auto-detection. Use Value: Concurrent read across memory planes allows real-time RF parameter lookup during active signal processing, avoiding pipeline stalls in time-sensitive DSP tasks. |
| Medical Imaging System Bootloader | Automotive ADAS Camera Module |
|
Use Scenario: Securing boot code and diagnostic firmware in FDA-cleared imaging devices requiring data integrity verification and anti-tampering features. IC Role / Device Role / Timing Role: Trusted storage with 128-bit protection register and Hardlock-enabled bootloader sector - prevents unauthorized firmware modification. Use Value: Meets IEC 62304 software lifecycle requirements by enabling write-protection enforcement at both hardware (WP pin) and software (sector lock) levels. |
Use Scenario: Storing camera sensor initialization sequences, lens correction profiles, and ASIL-B-compliant firmware in automotive surround-view systems. IC Role / Device Role / Timing Role: AEC-Q100 qualified flash memory supporting -40°C to +85°C operation with suspend/resume for fail-safe firmware recovery during power transients. Use Value: Sector-level erase isolation ensures critical camera startup code remains intact during over-the-air (OTA) application updates, meeting ISO 26262 functional safety goals. |
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, but lacks four-plane architecture and suspend/resume; uses standard JEDEC commands only. | No concurrent read capability - requires full erase wait before read; unsuitable for real-time interrupt-driven firmware updates. | Select when CFI compatibility and multi-plane concurrency are not required, and cost sensitivity outweighs performance flexibility. |
| MX29LV640ETTI-70G | 64 Mbit (4M × 16), 70 ns access, supports CFI and sector protection, but no erase/program suspend/resume or 128-bit protection register. | Limited security features - no factory-programmed ID block or user-lockable protection register for cryptographic keys. | Choose for legacy designs already using Macronix toolchains where suspend functionality is unused and security requirements are minimal. |
Compared with SST39VF6401B-70-4C-EKE and MX29LV640ETTI-70G, the AT49BV6416CT-70CI uniquely delivers concurrent plane reads and suspend/resume - enabling deterministic latency in interrupt-driven embedded systems - while its 128-bit protection register provides stronger security than either alternative's basic sector lock mechanisms.
Availability
AT49BV6416CT-70CI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, telecom baseband configuration, medical imaging system bootloaders, and automotive ADAS camera modules requiring stable component supply across extended product lifecycles.
Supply support for AT49BV6416CT-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 is a global semiconductor company specializing in microcontrollers, analog components, and nonvolatile memory solutions, with a focus on reliability and long-term product availability for industrial and automotive markets.
The AT49BV6416CT-70CI belongs to Microchip's parallel flash memory product line, designed specifically for high-performance, secure, and field-upgradable embedded firmware storage in mission-critical systems.
FAQ
What is the maximum operating temperature range for the AT49BV6416CT-70CI?
The AT49BV6416CT-70CI is rated for operation from –40°C to +85°C, meeting industrial temperature requirements. Its CBGA package and internal thermal design ensure stable performance under sustained read/write cycles in enclosed enclosures without forced airflow. This specification is validated per Microchip's qualification testing and applies to the full lifetime of the AT49BV6416CT-70CI device.
Does the AT49BV6416CT-70CI support true 3.3V-only operation without VPP voltage boosting?
Yes, the AT49BV6416CT-70CI operates fully at 2.7V–3.6V VCC with no VPP dependency for standard programming or erasing. VPP = 12.0V is optional and only accelerates erase/program times; at VPP ≤ 0.7V, the AT49BV6416CT-70CI still performs all functions correctly using internal charge pumps, ensuring compatibility with 3.3V-only power architectures.
How does the four-plane architecture of the AT49BV6416CT-70CI improve system responsiveness?
The AT49BV6416CT-70CI's four independent memory planes allow simultaneous read operations in up to three planes while the fourth undergoes erase or program. This eliminates mandatory wait states during long-duration operations - for example, reading calibration data from Plane B while updating firmware in Plane D - directly improving real-time determinism in the AT49BV6416CT-70CI-based system.
Can the AT49BV6416CT-70CI's 128-bit protection register be used for secure key storage in cryptographic applications?
Yes, the AT49BV6416CT-70CI includes a factory-programmed 64-bit Block A and user-programmable/lockable 64-bit Block B in its protection register. Once Block B is locked via the Lock Protection Register command, its contents become immutable - making it suitable for storing symmetric keys, device identifiers, or certificate fingerprints in tamper-resistant embedded security implementations using the AT49BV6416CT-70CI.
What happens to ongoing operations when the RESET pin is asserted on the AT49BV6416CT-70CI?
When RESET is pulled low, the AT49BV6416CT-70CI immediately halts all active program or erase operations, places I/O pins in high-impedance state, and clears internal command state. Upon RESET release (rising edge), the AT49BV6416CT-70CI returns to read mode - but any incomplete operation (e.g., partial sector erase) leaves affected memory in an undefined state and must be reinitialized via software.
AT49BV6416CT-70CI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 48-VFBGA, CSPBGA
- Packaging:
- Tray
- 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-CBGA (7x10)
AT49BV6416CT-70CI FAQ
1.How can I place an order for AT49BV6416CT-70CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV6416CT-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 AT49BV6416CT-70CI reliable?
The price and inventory of AT49BV6416CT-70CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV6416CT-70CI is usually 5 days.
3.What payment methods are accepted for AT49BV6416CT-70CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV6416CT-70CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV6416CT-70CI?
AT49BV6416CT-70CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV6416CT-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 AT49BV6416CT-70CI?
For technical support, including AT49BV6416CT-70CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV6416CT-70CI requirements.
6.How does Aetrix verify that AT49BV6416CT-70CI is sourced from the original manufacturer or authorized distributors?
All AT49BV6416CT-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 AT49BV6416CT-70CI meets industry standards.
7.What is the process for return or replacement of AT49BV6416CT-70CI?
All AT49BV6416CT-70CI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV6416CT-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 AT49BV6416CT-70CI part is unused and in its original packaging.
Return procedure for AT49BV6416CT-70CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV6416CT-70CI Tags
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