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Microchip Technology AT49BV6416C-70CI
- Part No.:
- AT49BV6416C-70CI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-VFBGA, CSPBGA
- Datasheet:
-
AT49BV6416C-70CI.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48CBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,079
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Product details
Overview
AT49BV6416C-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 and 127×32K-word sectors, and four-plane concurrent read capability - deployed in embedded firmware storage, boot code retention, and industrial controller nonvolatile memory.
For engineers reviewing the AT49BV6416C-70CI datasheet, AT49BV6416C-70CI pinout, AT49BV6416C-70CI application, or AT49BV6416C-70CI equivalent, key selection considerations include its CBGA package, VPP-accelerated program/erase timing, suspend/resume functionality for real-time system responsiveness, and CFI-compliant configuration discovery - all critical for legacy-compatible flash migration and deterministic firmware update design.
Technical Context
The AT49BV6416C-70CI implements a four-plane memory architecture enabling concurrent reads across three planes while one plane undergoes programming or erasure. Its Write State Machine (WSM) manages dual-bus-cycle command execution for word programming, sector erase, and protection register operations.
Hardware data protection includes VCC sense reset below 1.8V, 10 ms power-on delay, noise filtering on WE/CE (<15 ns), and VPP-dependent program/erase enablement. Sector lock status is reported via I/O0–I/O1 at address 00002H, with Softlock/Hardlock modes supporting dynamic firmware partitioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization) - supports 16-bit wide data bus interface without external multiplexing. |
| Read Access Time | 70 ns max - enables direct replacement of EPROMs in legacy 70 ns timing-critical systems. |
| Page Read Time | 20 ns per word within 4-word page - improves sequential firmware fetch throughput during boot or streaming. |
| Supply Voltage | 2.7V–3.6V VCC - compatible with 3.3V logic domains and tolerant of brown-out conditions down to 2.7V. |
| Active Current | 30 mA typical - constrains thermal budget in compact industrial modules with limited airflow. |
| Standby Current | 25 µA typical - extends battery life in always-on monitoring devices between firmware updates. |
| VPP Voltage | 12.0V for accelerated program/erase - reduces 32K-sector erase time to 700 ms, critical for field-upgrade latency budgets. |
Pinout & Package
AT49BV6416C-70CI is housed in a 48-pin Ceramic Ball Grid Array (CBGA) package measuring 7 mm × 10 mm, optimized for high-density PCB layouts and thermal stability in industrial environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O0–I/O15 | Data Inputs/Outputs | 16-bit bidirectional data bus - supports byte/word access; outputs driven to VCCQ − 0.1V level. |
| A0–A21 | Address Inputs | 22-bit address bus - A0–A1 select word within 4-word page; A20–A21 define memory plane (A–D). |
| CE | Chip Enable | Active-low chip select - enables dual-bus-cycle command latching on rising edge; controls device activation. |
| OE | Output Enable | Active-low output control - places I/O pins in high-Z when deasserted; prevents bus contention during multi-device sharing. |
| WE | Write Enable | Active-low write strobe - latches addresses/data on rising edge; initiates command sequences with CE low/OE high. |
| RESET | Reset Input | Active-low hardware reset - halts ongoing operations and forces high-Z outputs; returns device to read mode on release. |
| WP | Write Protect | Hardware lock override - disables Hardlock protection when high; enables permanent sector locking when low. |
| VPP | Program/Erase Power | Voltage-controlled function enable - inhibits programming if <0.7V; enables accelerated operation at 12.0V. |
| VCCQ | Output Power Supply | Separate 2.7V–3.6V supply for I/O drivers - isolates output voltage from core VCC, enabling 2.2V I/O option. |
Key Features
| Feature | Design Value |
|---|---|
| Four-plane concurrent read | Enables uninterrupted firmware execution from three memory planes while updating the fourth - eliminates system stalls during background reprogramming. |
| Erase/program suspend/resume | Halts active sector erase or word program in ≤15 µs (erase) or ≤10 µs (program), allowing immediate read access to other sectors - essential for real-time interrupt handling. |
| Flexible sector protection | Independent Softlock (software-unlockable) and Hardlock (WP-gated) modes per sector - secures bootloader partitions while permitting runtime application updates. |
| Common Flash Interface (CFI) | Standardized query mode (0x98 command) exposes timing parameters, sector map, and vendor ID - enables auto-configuration in generic flash drivers and bootloader frameworks. |
| 128-bit protection register | Factory-programmed 64-bit block A + user-writable/lockable 64-bit block B - supports secure device identity binding and cryptographic key storage in tamper-resistant designs. |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code Retention |
|---|---|
|
Use Scenario: Storing certified firmware images and configuration data in programmable logic controllers operating continuously in factory-floor environments with ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: Nonvolatile boot memory providing deterministic 70 ns read access to startup code and real-time task scheduler tables. Use Value: Four-plane architecture allows background firmware validation in one plane while executing control logic from another - eliminating watchdog timeouts during OTA updates. |
Use Scenario: Holding FDA-approved boot firmware and calibration constants in portable diagnostic equipment requiring guaranteed data integrity over 10-year service life. IC Role / Device Role / Timing Role: Secure, lockable flash memory with Hardlock-enabled bootloader sector and CFI-verified timing compliance for regulatory traceability. Use Value: 128-bit protection register stores device-specific cryptographic keys; VPP-controlled accelerated erase ensures <1-second firmware recovery after power loss events. |
| Avionics Data Logger Memory | Telecom Base Station Configuration |
|
Use Scenario: Capturing flight-critical sensor telemetry in black-box recorders where radiation tolerance and extended temperature operation (−40°C to +85°C) are mandatory. IC Role / Device Role / Timing Role: Radiation-hardened flash memory with suspend/resume capability to maintain logging continuity during transient EMI events. Use Value: Erase suspend permits immediate read of last valid log segment during fault analysis - no data loss even if erase is interrupted mid-operation. |
Use Scenario: Storing baseband processor configuration profiles and radio calibration maps in 4G/5G small cells deployed in uncontrolled outdoor enclosures. IC Role / Device Role / Timing Role: High-reliability flash with sector-level Softlock protection for field-upgradable parameter sets and immutable carrier-specific boot images. Use Value: Concurrent read across planes enables simultaneous loading of RF tuning tables and protocol stack binaries - reducing cell site reboot time by 40%. |
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 supply, PLCC-44 package - lacks VPP acceleration and four-plane concurrency. | Supports basic firmware storage but cannot sustain concurrent read/program operations required for real-time systems. | Select when board space allows PLCC footprint and suspend/resume functionality is not required. |
| MX29LV640ETTI-70G | 64 Mbit (4M × 16), 70 ns access, 2.7V–3.6V supply, TSOP-48 package - includes CFI and sector protection but no VPP pin or plane-level concurrency. | Valid for boot code storage in cost-sensitive consumer electronics, but lacks hardware-accelerated erase timing. | Choose for high-volume consumer designs where CBGA thermal performance is unnecessary and TSOP layout simplifies assembly. |
Compared with SST39VF6401B-70-4C-EKE and MX29LV640ETTI-70G, the AT49BV6416C-70CI uniquely delivers VPP-accelerated erase (700 ms vs. >1 s), true four-plane concurrency, and hardware-enforced Hardlock protection - making it the only option for deterministic firmware update latency and secure partitioning in safety-critical embedded systems.
Availability
AT49BV6416C-70CI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code retention, avionics data logger memory, and telecom base station configuration requiring stable component supply across extended product lifecycles.
Supply support for AT49BV6416C-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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and nonvolatile memory solutions for industrial, automotive, and aerospace applications.
The AT49BV6416C-70CI belongs to Microchip's legacy parallel-interface flash memory product line, engineered for backward compatibility with EPROM-based systems and deterministic firmware update workflows in mission-critical embedded platforms.
FAQ
What is the purpose of the VPP pin on the AT49BV6416C-70CI?
The VPP pin on the AT49BV6416C-70CI serves dual functions: it enables hardware write protection when held below 0.7V (inhibiting program/erase), and accelerates programming and erase operations when supplied at 12.0V - reducing 32K-word sector erase time to 700 ms. This pin is essential for achieving deterministic firmware update latency in time-constrained embedded applications using the AT49BV6416C-70CI.
How does the four-plane architecture of the AT49BV6416C-70CI improve system performance?
The AT49BV6416C-70CI's four-plane architecture allows concurrent read operations in any three planes while the fourth undergoes programming or erasure - eliminating CPU stalls during background firmware updates. This design directly enables real-time interrupt servicing and deterministic boot sequencing, making the AT49BV6416C-70CI suitable for industrial controllers and avionics systems where latency predictability is mandatory.
Can the AT49BV6416C-70CI be used in systems with 2.2V I/O interfaces?
Yes, the AT49BV6416C-70CI supports a 2.2V I/O option via its VCCQ pin, which decouples output driver voltage from core VCC. When VCCQ is set to 2.2V, the device maintains full 2.7V–3.6V core operation while reducing I/O switching power - enabling integration into mixed-voltage systems such as battery-powered medical devices where the AT49BV6416C-70CI must coexist with 2.2V logic peripherals.
What is the difference between Softlock and Hardlock sector protection on the AT49BV6416C-70CI?
Softlock protection on the AT49BV6416C-70CI is software-configurable and reversible via an Unlock command, ideal for frequently updated application sectors. Hardlock requires both a software command and low WP pin state to activate - making it irreversible until power cycle or reset. This dual-mode scheme allows the AT49BV6416C-70CI to securely isolate bootloader code (Hardlock) while permitting runtime updates to application firmware (Softlock).
Does the AT49BV6416C-70CI support Common Flash Interface (CFI) for automatic driver configuration?
Yes, the AT49BV6416C-70CI fully implements the Common Flash Interface standard. Issuing the 0x98 command places the device in CFI Query mode, exposing standardized registers that report memory geometry, timing parameters, sector map, and vendor/device IDs - enabling generic flash drivers to auto-negotiate optimal read/write protocols without hard-coded assumptions, a key feature for scalable firmware development using the AT49BV6416C-70CI.
AT49BV6416C-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)
AT49BV6416C-70CI FAQ
1.How can I place an order for AT49BV6416C-70CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV6416C-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 AT49BV6416C-70CI reliable?
The price and inventory of AT49BV6416C-70CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV6416C-70CI is usually 5 days.
3.What payment methods are accepted for AT49BV6416C-70CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV6416C-70CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV6416C-70CI?
AT49BV6416C-70CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV6416C-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 AT49BV6416C-70CI?
For technical support, including AT49BV6416C-70CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV6416C-70CI requirements.
6.How does Aetrix verify that AT49BV6416C-70CI is sourced from the original manufacturer or authorized distributors?
All AT49BV6416C-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 AT49BV6416C-70CI meets industry standards.
7.What is the process for return or replacement of AT49BV6416C-70CI?
All AT49BV6416C-70CI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV6416C-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 AT49BV6416C-70CI part is unused and in its original packaging.
Return procedure for AT49BV6416C-70CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV6416C-70CI Tags
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M24C02-WMN6TP
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AT24CS02-SSHM-T
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