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Microchip Technology AT49BV6416T-70TI-T
- Part No.:
- AT49BV6416T-70TI-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV6416T-70TI-T.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,904
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Product details
Overview
AT49BV6416T-70TI-T from Microchip Technology is a 64-megabit (4M × 16) parallel-interface Flash memory IC operating from 2.7V to 3.6V, featuring 70 ns asynchronous access time and TSOP-48 package. It implements four-plane architecture with sector erase, suspend/resume capability, and Common Flash Interface (CFI) for system-level configuration. Used in embedded firmware storage, boot code retention, and industrial controller nonvolatile memory.
For engineers reviewing the AT49BV6416T-70TI-T datasheet, AT49BV6416T-70TI-T pinout, AT49BV6416T-70TI-T application, or AT49BV6416T-70TI-T equivalent, key selection criteria include 70 ns read timing, 2.2V I/O support via VCCQ, sector-level write lockout, concurrent plane reads, and CFI-compliant auto-configuration - all critical for legacy 16-bit bus systems requiring field-upgradable firmware.
Technical Context
The AT49BV6416T-70TI-T uses a four-plane memory architecture (A–D, each 16 Mbit), enabling concurrent read operations across three planes while one is being programmed or erased. Its command-set-driven operation supports six-bus-cycle sector/plane/erase, four-bus-cycle word programming, and single-pulse programming mode activated by a six-byte sequence.
It integrates dual status detection (Data Polling on I/O7 and Toggle Bit on I/O6), configurable status register (00/01), hardware write protection via WP and VPP pins, and 128-bit factory/user-programmable protection register with block-B locking. All operations are validated under 2.7–3.6V VCC with separate 2.2–3.6V VCCQ for I/O voltage scaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), directly maps to 8 MB of 16-bit addressable storage space |
| Access Time | 70 ns asynchronous read - determines minimum bus cycle time in legacy microcontroller interfaces |
| Page Read Time | 20 ns per word within 4-word page - enables burst-like throughput without changing address bus |
| Voltage Range | 2.7V–3.6V VCC; 2.2V–3.6V VCCQ - allows low-power I/O signaling independent of core supply |
| Sector Architecture | Eight 4K-word + 127 × 32K-word sectors - enables fine-grained firmware partitioning and OTA update safety |
| Power Consumption | 30 mA active, 35 µA standby - supports battery-backed operation in always-on embedded nodes |
| Package | 48-pin TSOP-I (Type 1), 12 × 20 mm footprint - compatible with standard PCB reflow and legacy socket designs |
Pinout & Package
AT49BV6416T-70TI-T is housed in a 48-pin Thin Small Outline Package (TSOP-I, Type 1), 12 mm × 20 mm body size, 0.5 mm lead pitch, JEDEC MO-141AC compliant. Pin 1 marked by notch or dot; leads are gull-wing, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O0–I/O15 | Bi-directional data bus | 16-bit parallel interface; supports byte/word writes and status bit reads (I/O5–I/O7) |
| A0–A21 | Address inputs | 22-bit addressing for full 4M-word space; A0–A1 toggle during page read for 20 ns access |
| CE, OE, WE | Chip/Output/Write Enable controls | Three-line control enables bus contention avoidance; CE+OE low + WE high = read mode |
| RESET | Hardware initialization input | Active-low signal halts ongoing erase/program and forces high-Z outputs; required for safe power-up recovery |
| WP | Write protect enable | Hardware override for Hardlock sectors: WP=low locks protected sectors permanently until reset |
| VPP | Erase/program voltage control | Enables accelerated dual-word programming at 10V; inhibits writes if <0.7V; status reported on I/O3 |
| VCCQ | Independent I/O power supply | Decouples output driver voltage from core VCC; enables 2.2V logic compatibility in mixed-voltage systems |
| GND, VCC | Power reference and supply | Dual ground pins (Pins 24 & 48) reduce noise; VCC must be stable ≥1.8V before programming allowed |
Key Features
| Feature | Design Value |
|---|---|
| Four-plane concurrent read | Read from any three memory planes while fourth is being programmed/erased - eliminates read latency stalls in real-time firmware execution |
| Erase/Program Suspend | Pause active erase or program to service urgent read requests from other sectors - essential for deterministic response in safety-critical boot loaders |
| Softlock/Hardlock sector protection | Independent software/hardware locking per sector - prevents accidental overwrite of bootloader or calibration data without physical WP pin assertion |
| Common Flash Interface (CFI) | Standardized query mode (0x98 @ 0x55) returns device geometry, timing, and command set - enables generic flash drivers across multiple vendors |
| 128-bit protection register | Factory-programmed 64-bit ID + user-lockable 64-bit block - supports secure firmware binding and anti-cloning in medical/industrial devices |
| Single-pulse programming mode | After six-byte entry sequence, word writes require only WE pulse - cuts programming time in manufacturing test by >40% vs. full command sequence |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code Retention |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers with no external programmer. IC Role / Device Role / Timing Role: Nonvolatile boot memory mapped to CPU address space; provides 70 ns read access for deterministic startup timing. Use Value: Sector lockout prevents corruption of critical I/O configuration blocks during field updates; suspend/resume allows background firmware download while maintaining real-time scan cycles. | Use Scenario: Holding certified boot loader and diagnostic firmware in FDA-regulated infusion pumps and imaging subsystems. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for signed firmware images; CFI enables automated validation of flash parameters during pre-boot self-test. Use Value: 128-bit protection register binds firmware to hardware serial; Hardlock + WP pin ensures bootloader remains immutable during clinical software upgrades. |
| Automotive ECU Calibration Data | Telecom Base Station Configuration |
Use Scenario: Storing engine calibration tables and emission control parameters subject to ISO 26262 ASIL-B requirements. IC Role / Device Role / Timing Role: EEPROM-replacement memory with sector-level write endurance management; operates reliably across -40°C to +105°C ambient. Use Value: Four-plane architecture allows simultaneous read of current map data while writing updated parameters to alternate sector - eliminates runtime interruption during over-the-air recalibration. | Use Scenario: Maintaining FPGA configuration bitstreams and protocol stack parameters in 4G/LTE remote radio units. IC Role / Device Role / Timing Role: High-reliability parallel flash interfaced to ARM-based baseband processors; supports hot-swap firmware patching without system reset. Use Value: VCCQ-controlled 2.2V I/O reduces signal integrity risk on long backplane traces; CFI auto-detection simplifies driver porting across multiple flash generations. |
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, 3.0–3.6V only, no VCCQ pin, no four-plane architecture | Lacks suspend/resume and concurrent plane reads; requires full chip erase for large updates | Choose when board space constraints prohibit TSOP-48 or when CFI and sector protection are not required |
| MX29LV640ETTI-70G | 64 Mbit (4M × 16), 70 ns, 2.7–3.6V, supports CFI and sector protection, but no VPP acceleration or 128-bit register | No hardware-accelerated programming; lacks dedicated protection register for secure binding | Prefer for cost-sensitive industrial designs where security features and VPP-driven speed are secondary |
Compared with SST39VF6401B-70-4C-EKE and MX29LV640ETTI-70G, the AT49BV6416T-70TI-T uniquely delivers concurrent plane reads, VPP-accelerated programming, and factory/user-separable 128-bit protection - making it the only option supporting both real-time firmware updates and cryptographic device binding in a single TSOP-48 package.
Availability
AT49BV6416T-70TI-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code retention, and automotive ECU calibration data requiring stable component supply across extended product lifecycles.
Supply support for AT49BV6416T-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 company specializing in microcontrollers, analog devices, and nonvolatile memory solutions for industrial, automotive, and communications markets.
The AT49BV6416T-70TI-T belongs to Microchip's legacy parallel Flash memory product line, designed specifically for 16-bit embedded systems requiring in-system programmability, sector-level data integrity, and long-term reliability in harsh environments.
FAQ
What is the maximum operating temperature range for the AT49BV6416T-70TI-T?
The AT49BV6416T-70TI-T is rated for operation from –40°C to +85°C ambient temperature. This industrial-grade thermal specification ensures reliable performance in programmable logic controllers, medical equipment enclosures, and automotive under-hood modules where sustained elevated temperatures occur. The device meets JEDEC JESD22-A108 stress testing standards for temperature cycling and storage life.
Does the AT49BV6416T-70TI-T support true 2.2V I/O operation?
Yes, the AT49BV6416T-70TI-T supports true 2.2V I/O operation via its dedicated VCCQ pin. When VCCQ is supplied at 2.2V, output high levels are guaranteed at VCCQ – 0.1V (≥2.1V), and inputs tolerate 0–5.5V - enabling direct interfacing with 2.5V or 3.3V logic families without level shifters. This feature is confirmed in Section 3.14 and Table 3-2 of the official datasheet.
How does the four-plane architecture of the AT49BV6416T-70TI-T improve system responsiveness?
The AT49BV6416T-70TI-T's four-plane architecture allows read operations to proceed concurrently in up to three planes while the fourth is undergoing program or erase. This eliminates mandatory wait states during firmware updates, enabling real-time systems - such as industrial motion controllers - to maintain deterministic I/O scanning while background flash operations execute. No external arbitration logic is required.
Can the AT49BV6416T-70TI-T be used as a drop-in replacement for the AT49BV6416-70TI?
No, the AT49BV6416T-70TI-T is not a drop-in replacement for the AT49BV6416-70TI. While both share identical pinout and electrical specifications, the "T" suffix denotes top-boot block configuration (vs. bottom-boot in non-T variants), affecting default reset vector mapping and CFI query response offsets. Firmware must be validated for boot block orientation before substitution.
What happens to the AT49BV6416T-70TI-T during a power loss mid-erase?
If power is lost during an erase operation, the AT49BV6416T-70TI-T enters an undefined state in the affected sector - potentially containing partial erasure or corrupted data. The device does not guarantee atomicity at sector level. Recovery requires issuing a Chip Erase or Sector Erase command after power restoration, followed by full data verification. Critical systems must implement brown-out detection and controlled shutdown prior to initiating erase cycles.
AT49BV6416T-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
AT49BV6416T-70TI-T FAQ
1.How can I place an order for AT49BV6416T-70TI-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV6416T-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 AT49BV6416T-70TI-T reliable?
The price and inventory of AT49BV6416T-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 AT49BV6416T-70TI-T is usually 5 days.
3.What payment methods are accepted for AT49BV6416T-70TI-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV6416T-70TI-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV6416T-70TI-T?
AT49BV6416T-70TI-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV6416T-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 AT49BV6416T-70TI-T?
For technical support, including AT49BV6416T-70TI-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV6416T-70TI-T requirements.
6.How does Aetrix verify that AT49BV6416T-70TI-T is sourced from the original manufacturer or authorized distributors?
All AT49BV6416T-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 AT49BV6416T-70TI-T meets industry standards.
7.What is the process for return or replacement of AT49BV6416T-70TI-T?
All AT49BV6416T-70TI-T units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV6416T-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 AT49BV6416T-70TI-T part is unused and in its original packaging.
Return procedure for AT49BV6416T-70TI-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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