My Inquiry
My Account
Microchip Technology AT49BV6416-70TU
- Part No.:
- AT49BV6416-70TU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV6416-70TU.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,499
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT49BV6416-70TU from Microchip Technology is a 64-megabit (4M × 16) asynchronous Flash memory IC operating from 2.7V to 3.6V, 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. It supports in-system programming for embedded firmware storage in industrial controllers and network boot loaders.
For engineers reviewing the AT49BV6416-70TU datasheet, AT49BV6416-70TU pinout, AT49BV6416-70TU application, or AT49BV6416-70TU equivalent, key selection considerations include TSOP-48 package compatibility, 2.2V I/O support via VCCQ, suspend/resume functionality for real-time interruptible erase/program, CFI compliance for auto-configuration, and dual-voltage VPP control for accelerated programming.
Technical Context
The AT49BV6416-70TU implements a four-plane memory architecture enabling concurrent reads across three non-active planes during program/erase operations. Its command-set-driven operation uses six-bus-cycle sequences for sector/plane erase and four-bus-cycle sequences for word programming, with status reporting via I/O2–I/O7 toggle and polling bits.
It integrates hardware data protection including VCC sense (<1.8V inhibit), 10 ms power-on delay, noise filtering (<15 ns pulse rejection), and dual-sector lock modes (Softlock/Hardlock) controlled by WP pin state and software commands. The 128-bit protection register includes factory-programmed Block A and user-lockable Block B for secure firmware signing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16 organization) - provides 8 MB of nonvolatile storage for boot code and configuration data |
| Read Access Time | 70 ns asynchronous - enables direct CPU interface without wait states at moderate clock speeds |
| Page Read Time | 20 ns per word within 4-word page - improves sequential read throughput in firmware execution paths |
| Supply Voltage Range | 2.7V–3.6V VCC with 2.2V–3.6V VCCQ - allows low-power I/O interfacing while maintaining core logic stability |
| Sector Erase Time | 200 ms (4K-word) / 700 ms (32K-word) - defines minimum latency for field firmware updates |
| Active Current | 30 mA typical - determines thermal and power budget impact during active read/write cycles |
| Standby Current | 35 µA typical - supports battery-backed retention in always-on embedded systems |
Pinout & Package
AT49BV6416-70TU is housed in a 48-pin Thin Small Outline Package (TSOP Type I, 12 × 20 mm), compliant with JEDEC MO-141BA, with standard 0.5 mm pitch and gull-wing leads suitable for surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O0–I/O15 | Data bus inputs/outputs | 16-bit bidirectional data path; driven by VCCQ voltage for level-shiftable I/O |
| A0–A21 | Address inputs | 22-bit address bus supporting full 4M-word addressing; A21–A20 select memory plane |
| CE | Chip Enable | Active-low chip select; must be low with OE low and WE high for read access |
| OE | Output Enable | Active-low output control; used with CE to prevent bus contention during shared-memory access |
| WE | Write Enable | Active-low write strobe; latches addresses and data during command sequences and programming |
| VPP | Program voltage input | Enables accelerated dual-word programming at 10.0V; inhibits erase/program below 0.7V |
| WP | Hardware write protect | Controls Hardlock override: low = permanent sector lock; high = unlock possible via software |
| RESET | Device initialization | Active-low reset; halts ongoing operations and forces high-impedance outputs on assertion |
| VCCQ | I/O power supply | Separate 2.2V–3.6V supply for data pins - enables mixed-voltage system interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Four-plane concurrent read | Allows uninterrupted firmware execution from one plane while updating another - eliminates read stalls during field upgrades |
| Erase/program suspend/resume | 10 µs suspend latency enables real-time response to interrupts without aborting long-duration flash operations |
| CFI-compliant interface | Standardized query mode (0x98 at 0x55) enables automatic driver detection and vendor-agnostic firmware tools |
| Dual-sector lock modes | Softlock (software-only) and Hardlock (WP-gated) allow flexible protection of bootloader vs. application partitions |
| 128-bit protection register | Factory-block A + user-lockable block B provide cryptographic key storage and anti-cloning security for OEM firmware |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Loader |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers with runtime integrity checks. IC Role / Device Role / Timing Role: Nonvolatile boot memory holding firmware image and configuration tables; accessed during cold start and hot firmware patching. Use Value: Sector lock prevents accidental overwrite of critical bootloader region; suspend/resume allows background update while maintaining real-time I/O scanning. | Use Scenario: Hosting boot code and OS kernel images in enterprise-grade routers requiring secure, field-upgradable storage. IC Role / Device Role / Timing Role: Primary boot device mapped into CPU address space; supports CFI auto-detection for multi-vendor board compatibility. Use Value: Four-plane architecture enables concurrent packet processing (CPU reads Plane A) while writing new firmware to Plane B - zero-downtime upgrades. |
| Medical Device Configuration Archive | Automotive ECU Calibration Data |
Use Scenario: Retaining device-specific calibration parameters, usage logs, and regulatory audit trails in Class II medical instruments. IC Role / Device Role / Timing Role: Secure parameter store with tamper-resistant locking; accessed via SPI-to-parallel bridge or direct MPU bus. Use Value: 128-bit protection register stores encrypted calibration keys; Hardlock + WP pin ensures FDA-required write-protection during clinical operation. | Use Scenario: Storing engine calibration maps and diagnostic event logs in automotive ECUs subject to ISO 26262 ASIL-B requirements. IC Role / Device Role / Timing Role: Safety-critical nonvolatile memory for runtime-accessed lookup tables and fault history; operates under extended temperature range. Use Value: 35 µA standby current extends battery life during vehicle sleep mode; sector erase granularity enables map versioning without full reflash. |
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, 2.7–3.6V, but lacks four-plane architecture and suspend/resume | No concurrent read capability - requires full erase/program blocking during updates | Select when cost sensitivity outweighs real-time update requirements and CFI is not needed |
| MX29LV640EBTI-70G | 64 Mbit (4M × 16), 70 ns, 2.7–3.6V, supports CFI and sector protection, but no VCCQ I/O voltage separation | Fixed 3.3V I/O limits mixed-voltage system integration; no 2.2V low-power I/O option | Choose for legacy 3.3V-only designs where VCCQ flexibility is unnecessary |
Compared with SST39VF6401B-70-4C-EKE and MX29LV640EBTI-70G, the AT49BV6416-70TU uniquely delivers concurrent plane reads and suspend/resume - essential for deterministic real-time firmware updates - while its VCCQ pin enables energy-efficient I/O interfacing in battery-powered or mixed-voltage systems.
Availability
AT49BV6416-70TU is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot loader implementation, and medical device configuration archiving requiring stable component supply and long-term lifecycle support.
Supply support for AT49BV6416-70TU 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 belongs to Microchip's legacy parallel Flash memory product line, designed specifically for embedded systems requiring in-system programmability, deterministic timing, and robust data retention in harsh environments.
FAQ
What is the purpose of the VCCQ pin on the AT49BV6416-70TU?
The VCCQ pin on the AT49BV6416-70TU supplies power exclusively to the I/O buffer circuitry, allowing independent voltage control between 2.2V and 3.6V. This enables direct interfacing with lower-voltage processors or FPGAs without level shifters, reducing system power consumption and simplifying board design. In the AT49BV6416-70TU, VCCQ decoupling is mandatory for reliable 16-bit data transfer and must be stabilized separately from VCC.
How does the four-plane architecture of the AT49BV6416-70TU improve system performance?
The four-plane architecture of the AT49BV6416-70TU permits concurrent read operations across any three planes not undergoing program or erase. For example, while Plane B is being erased, the CPU can execute code from Plane A and fetch configuration data from Plane C simultaneously - eliminating read stalls and enabling zero-downtime firmware updates. This capability is intrinsic to the AT49BV6416-70TU's physical memory layout and requires no external arbitration logic.
Can the AT49BV6416-70TU be used in systems requiring Common Flash Interface (CFI) compliance?
Yes, the AT49BV6416-70TU fully supports the Common Flash Interface (CFI) specification. Entering CFI Query mode requires writing 0x98 to address 0x55, after which standardized parameter tables - including device geometry, timing values, and command sets - are readable from defined offsets. This allows generic flash drivers to auto-configure for the AT49BV6416-70TU without hard-coded vendor-specific logic, enhancing firmware portability across platforms.
What is the functional difference between Softlock and Hardlock sector protection on the AT49BV6416-70TU?
Softlock on the AT49BV6416-70TU is software-controlled: a sector can be unlocked via the two-bus-cycle Unlock command, enabling dynamic reprogramming. Hardlock requires both a six-bus-cycle Hardlock command and a low WP pin state - once engaged, it cannot be disabled without power cycling or reset. At power-up, all sectors default to Softlock. This dual-mode scheme lets designers protect immutable bootloader code (Hardlock) while allowing field-upgradable application sections (Softlock) within the same AT49BV6416-70TU device.
Does the AT49BV6416-70TU support accelerated programming, and how is it enabled?
Yes, the AT49BV6416-70TU supports accelerated dual-word programming when VPP is supplied at 10.0V. This mode is activated automatically during the Dual-Word Program command sequence (five-bus-cycle) and doubles write throughput for adjacent words differing only in A0. The AT49BV6416-70TU's VPP pin must be externally regulated to 10.0V ± 0.5V; operation at lower VPP voltages defaults to standard single-word programming. Accelerated mode is intended for manufacturing environments, not field updates.
AT49BV6416-70TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- 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-TSOP
AT49BV6416-70TU FAQ
1.How can I place an order for AT49BV6416-70TU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV6416-70TU 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 reliable?
The price and inventory of AT49BV6416-70TU 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 is usually 5 days.
3.What payment methods are accepted for AT49BV6416-70TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV6416-70TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV6416-70TU?
AT49BV6416-70TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV6416-70TU 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?
For technical support, including AT49BV6416-70TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV6416-70TU requirements.
6.How does Aetrix verify that AT49BV6416-70TU is sourced from the original manufacturer or authorized distributors?
All AT49BV6416-70TU 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 meets industry standards.
7.What is the process for return or replacement of AT49BV6416-70TU?
All AT49BV6416-70TU units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV6416-70TU, 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 part is unused and in its original packaging.
Return procedure for AT49BV6416-70TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV6416-70TU Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
