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Microchip Technology AT49BV6416-70TU-T
- Part No.:
- AT49BV6416-70TU-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV6416-70TU-T.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,108
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Product details
Overview
AT49BV6416-70TU-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 asynchronous access time and sector-level erase architecture with eight 4K-word boot sectors and 127 × 32K-word main sectors. It supports concurrent read across three of four memory planes during program/erase in the fourth, enabling real-time firmware updates in embedded controllers.
For engineers reviewing the AT49BV6416-70TU-T datasheet, AT49BV6416-70TU-T pinout, AT49BV6416-70TU-T application, or AT49BV6416-70TU-T equivalent, key selection criteria include TSOP-48 package compatibility, 2.2V I/O support via VCCQ, CFI-compliant device identification, suspend/resume capability for background operations, and dual-voltage VPP-assisted programming acceleration.
Technical Context
The AT49BV6416-70TU-T implements a four-plane memory architecture (A–D, each 16 Mbit), allowing active reads in any three planes while one undergoes erase or program. Its command-set-driven operation uses six-bus-cycle sequences for sector/plane erase and four-bus-cycle sequences for word programming, with status detection via I/O5 (erase/program fail), I/O3 (VPP level), I/O7 (data polling), and I/O6 (toggle bit).
It integrates two software-configurable sector protection modes-Softlock (unlockable via command) and Hardlock (tied to WP pin state)-plus hardware data protection including VCC sense, noise filtering on WE/CE, and VPP voltage validation. The 128-bit factory-programmed + user-programmable protection register enables secure boot code storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization), supporting 16-bit parallel data interface |
| Access Time | 70 ns asynchronous read - determines minimum bus cycle timing for CPU/FPGA interface |
| Page Read Speed | 20 ns per word within 4-word page - reduces burst read latency in sequential firmware fetch |
| Supply Voltage | 2.7V–3.6V VCC; separate 2.2V–3.6V VCCQ for I/O - enables low-power system I/O domain isolation |
| Sector Erase Time | 200 ms (4K-word sectors), 700 ms (32K-word sectors) - defines firmware update granularity and timeout budget |
| Power Consumption | 30 mA active current, 35 µA standby - critical for battery-backed or always-on embedded systems |
| VPP Function | 10.0V input enables accelerated dual-word programming - used only in manufacturing, not field operation |
Pinout & Package
AT49BV6416-70TU-T is housed in a 48-pin Thin Small Outline Package (TSOP Type I, 12 × 20 mm), compliant with JEDEC MO-141AC, with standard 0.5 mm pitch and gull-wing leads suitable for reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O0–I/O15 | Data Input/Output Bus | 16-bit bidirectional data path; driven by VCCQ voltage for I/O-level flexibility |
| A0–A21 | Address Inputs | 22-bit address bus supporting full 4M-word addressing; A21–A20 select memory plane |
| CE, OE, WE | Chip/Output/Write Enable Controls | Three independent control lines enable bus contention avoidance and flexible timing control |
| RESET | Hardware Initialization Input | Active-low signal halts ongoing operations and forces high-impedance outputs for safe reset recovery |
| WP | Write Protection Control | Hardware gate for Hardlock sector protection; low = permanent lock, high = override enabled |
| VPP | Erase/Program Voltage Input | Enables accelerated programming at 10V; <0.7V disables all write functions for safety |
| VCCQ | Separate I/O Power Supply | Decouples output driver voltage from core logic, enabling 2.2V–3.6V I/O compatibility |
Key Features
| Feature | Design Value |
|---|---|
| Four-Plane Concurrent Read | Reads continue in up to three memory planes while one is being programmed or erased - eliminates read stalls during firmware updates |
| Erase/Program Suspend & Resume | 10 µs suspend latency for program, 15 µs for erase - enables real-time interrupt handling without aborting background flash operations |
| CFI Compliance | Standardized query mode (0x555/0x2AA/0x98) returns device geometry, timing, and command set - enables auto-configuration in bootloader and OS drivers |
| Dual Sector Protection Modes | Softlock (software-unlockable) and Hardlock (WP-gated) allow mixed firmware/boot partition policies - supports secure boot + field-upgradable application code |
| 128-Bit Protection Register | Factory-programmed Block A + user-writable/lockable Block B - provides tamper-resistant storage for cryptographic keys or device IDs |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Code |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers with runtime diagnostics. IC Role / Device Role / Timing Role: Nonvolatile program storage with concurrent read capability during background sector erase - ensures deterministic scan cycle timing. Use Value: Eliminates controller freeze during firmware patching; 70 ns access meets real-time I/O scan deadlines. | Use Scenario: Secure boot image storage in head-unit ECUs requiring anti-rollback and authenticated firmware loading. IC Role / Device Role / Timing Role: CFI-identified, Hardlock-protected boot sector holding signed bootloader - prevents unauthorized modification. Use Value: 128-bit protection register stores root-of-trust keys; VPP-based write inhibit blocks runtime corruption. |
| Medical Device Configuration Memory | Network Router Embedded OS Image |
Use Scenario: Retaining calibrated sensor parameters and regulatory compliance settings across power cycles in diagnostic equipment. IC Role / Device Role / Timing Role: Softlock-protected configuration sector updated via service port - allows field recalibration without full reflash. Use Value: 200 ms sector erase enables fast parameter commit; 35 µA standby preserves battery life in portable units. | Use Scenario: Storing compressed Linux kernel and initramfs in edge routers with hot-swap firmware upgrade capability. IC Role / Device Role / Timing Role: Four-plane architecture enables simultaneous kernel read (Plane A) and filesystem update (Plane D) - accelerates over-the-air deployment. Use Value: Page-mode 20 ns reads reduce boot latency; suspend/resume avoids packet loss during live update. |
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 concurrency and suspend/resume | No concurrent read during erase - requires full operation blocking; no CFI support | Use where cost sensitivity outweighs real-time update requirements and legacy toolchain support is needed |
| MX29LV640EBTI-70G | 64 Mbit (4M × 16), 70 ns, includes CFI and sector protection, but no multi-plane architecture | Supports suspend/resume but only at chip/sector level - no intra-plane read during program | Preferred when standardized CFI integration is required and concurrent read is not mandatory |
Compared with SST39VF6401B-70-4C-EKE and MX29LV640EBTI-70G, the AT49BV6416-70TU-T uniquely delivers true concurrent read across memory planes - enabling uninterrupted execution during background flash operations - while retaining CFI, dual-voltage I/O, and hardware-enforced sector locking essential for certified embedded systems.
Availability
AT49BV6416-70TU-T is available at Aetrix Electronics and suitable for industrial PLCs, automotive infotainment systems, and medical diagnostic devices requiring stable component supply, long-term lifecycle assurance, and Pb-free packaging compliance.
Supply support for AT49BV6416-70TU-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 company specializing in microcontrollers, analog devices, and nonvolatile memory solutions for industrial, automotive, and communications markets.
The AT49BV6416-70TU-T belongs to Microchip's legacy 2.7V Flash memory product line, designed specifically for in-system programmable, low-voltage embedded applications requiring robust data retention, sector-level security, and real-time operational flexibility.
FAQ
What is the function of the VPP pin on the AT49BV6416-70TU-T?
The VPP pin on the AT49BV6416-70TU-T serves dual purposes: it enables accelerated dual-word programming when supplied with 10.0V, and acts as a hardware write-inhibit when held below 0.7V - preventing unintended erase or program operations. During normal 2.7V–3.6V operation, VPP must be tied to VCC to allow standard programming; its voltage level is monitored internally and reported via I/O3 status bit.
Does the AT49BV6416-70TU-T support true concurrent read during erase or program operations?
Yes, the AT49BV6416-70TU-T supports true concurrent read: its four-plane architecture allows active reads in any three memory planes while the fourth is undergoing erase or program. This eliminates read stalls during firmware updates. Unlike simpler suspend/resume implementations, no suspend command is needed when reading from a different plane - concurrency is inherent to the physical memory layout.
How does sector protection work on the AT49BV6416-70TU-T?
The AT49BV6416-70TU-T implements two independent sector protection modes: Softlock (software-unlockable via command) and Hardlock (hardware-gated by the WP pin). At power-up, all sectors default to Softlock. Hardlock becomes permanent when WP is low; only a reset or power cycle clears it. Protection status is readable via I/O1/I/O0 at address 00002H within each sector.
What is the purpose of the VCCQ pin on the AT49BV6416-70TU-T?
The VCCQ pin on the AT49BV6416-70TU-T supplies power exclusively to the I/O buffer circuitry, decoupling output voltage from the core logic supply (VCC). This allows the device to operate with VCC at 2.7V–3.6V while driving I/O at 2.2V–3.6V - reducing system-level power consumption and enabling interoperability with lower-voltage peripherals without level shifters.
Is the AT49BV6416-70TU-T compatible with Common Flash Interface (CFI) host software?
Yes, the AT49BV6416-70TU-T fully supports CFI: issuing the query command (0x555/0x2AA/0x98) places the device in CFI mode, allowing host software to read standardized tables at fixed addresses that describe geometry, timing parameters, command sets, and sector maps. This enables automatic driver configuration and second-source interchangeability in CFI-aware systems.
AT49BV6416-70TU-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
AT49BV6416-70TU-T FAQ
1.How can I place an order for AT49BV6416-70TU-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV6416-70TU-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 AT49BV6416-70TU-T reliable?
The price and inventory of AT49BV6416-70TU-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV6416-70TU-T is usually 5 days.
3.What payment methods are accepted for AT49BV6416-70TU-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV6416-70TU-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV6416-70TU-T?
AT49BV6416-70TU-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV6416-70TU-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 AT49BV6416-70TU-T?
For technical support, including AT49BV6416-70TU-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV6416-70TU-T requirements.
6.How does Aetrix verify that AT49BV6416-70TU-T is sourced from the original manufacturer or authorized distributors?
All AT49BV6416-70TU-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 AT49BV6416-70TU-T meets industry standards.
7.What is the process for return or replacement of AT49BV6416-70TU-T?
All AT49BV6416-70TU-T units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV6416-70TU-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 AT49BV6416-70TU-T part is unused and in its original packaging.
Return procedure for AT49BV6416-70TU-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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