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Microchip Technology AT49BV1614AT-70CI
- Part No.:
- AT49BV1614AT-70CI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA, CSPBGA
- Datasheet:
-
AT49BV1614AT-70CI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48CBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,135
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Product details
Overview
AT49BV1614AT-70CI from Microchip Technology (formerly Atmel) is a 16-Mbit (1M × 16 / 2M × 8) single-supply 3V Flash memory IC with sector erase architecture, 70 ns access time, and dual-plane concurrent read/program-erase capability. It supports byte/word mode via BYTE pin control and operates across -40°C to +85°C for industrial embedded boot code storage and firmware update applications.
For engineers reviewing the AT49BV1614AT-70CI datasheet, AT49BV1614AT-70CI pinout, AT49BV1614AT-70CI application, or AT49BV1614AT-70CI equivalent, key selection criteria include its 39-sector layout (eight 4K-word + thirty-one 32K-word sectors), erase suspend functionality, VPP-accelerated programming, and TSOP/CBGA package compatibility in industrial temperature grade.
Technical Context
The AT49BV1614AT-70CI implements a dual-plane memory architecture: Plane A contains eight 4K-word and seven 32K-word sectors; Plane B contains twenty-four 32K-word sectors. This enables concurrent reads from one plane while programming or erasing the other - eliminating wait states during firmware updates.
It uses command-based operation with six-byte sequences for chip/sector erase and lockdown, and supports hardware data protection (VCC sense, noise filtering, program inhibit). The RDY/BUSY open-drain output, Data Polling (I/O7), and Toggle Bit (I/O6/I/O2) provide three independent end-of-operation detection methods.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit or 2,097,152 × 8-bit) |
| Access Time | 70 ns - guarantees deterministic read latency for real-time boot code fetch |
| Supply Voltage | 2.65V–3.3V - compatible with 3V system rails without level-shifting |
| Sector Architecture | 39 sectors: eight 4K-word + thirty-one 32K-word - enables granular firmware partitioning and secure boot lockdown |
| Program Time | 20 µs per word - enables rapid field updates when VPP = 5V or 12V |
| Erase Time | 300 ms per sector - predictable timing for background erase operations |
| Standby Current | 10 µA - ultra-low power retention for battery-backed systems |
Pinout & Package
AT49BV1614AT-70CI is available in 48-lead TSOP Type 1 and 48-ball CBGA packages. Both are RoHS-compliant and rated for industrial temperature range (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A-1 used only in byte mode on I/O15 |
| I/O0–I/O15 | Data I/O (x16) / I/O0–I/O7 + A-1 (x8) | Configurable byte/word interface via BYTE pin; eliminates need for external multiplexing |
| CE, OE, WE | Chip Enable, Output Enable, Write Enable | Dual-line control (CE+OE) prevents bus contention; standard microprocessor timing compliance |
| RDY/BUSY | Open-drain status output | Allows OR-tying of multiple devices; active-low during internal program/erase cycles |
| VPP | Accelerated Program/Erase Supply | Accepts 5V ±0.5V or 12V ±0.5V to reduce program/erase times; may be left unconnected |
| BYTE | Mode Select | Logic high = x16 word mode (I/O0–I/O15 active); logic low = x8 byte mode (I/O0–I/O7 active, I/O15 = A-1) |
| RESET | Hardware Initialization | Pulls outputs to high-Z and halts ongoing operations; required to exit Single Pulse Program mode |
Key Features
| Feature | Design Value |
|---|---|
| Dual-plane concurrent operation | Enables simultaneous read from one memory plane while programming/erasing the other - improves system responsiveness during firmware updates |
| Erase suspend/resume | Pauses active sector erase to allow immediate read/program access to any other sector in same plane - critical for real-time interrupt handling |
| Sector lockdown | Per-sector write-protection via six-byte command - secures boot code against accidental overwrite while permitting runtime update of application partitions |
| 128-bit protection register | Factory-programmed 64-bit block A + user-programmable/lockable 64-bit block B - supports device authentication and secure key storage |
| VPP-accelerated programming | Reduces word program time and sector erase time when 5V or 12V applied to VPP - cuts firmware update duration without requiring higher VCC |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code Retention |
|---|---|
Use Scenario: Storing certified boot loader and safety-critical initialization routines in programmable logic controllers with strict revision control and field-upgrade requirements. IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic 70 ns read access and sector-lockdown protected execution start point. Use Value: Prevents unauthorized modification of startup code via hardware-enforced sector lockdown and 128-bit protection register authentication. | Use Scenario: Holding FDA-cleared boot firmware and calibration data in portable diagnostic equipment requiring long-term data integrity and tamper resistance. IC Role / Device Role / Timing Role: Industrial-grade Flash memory operating at -40°C to +85°C with 10 µA standby current for battery-backed operation. Use Value: Dual-plane architecture allows background firmware validation (read) while updating application partitions - no system downtime during maintenance. |
| Automotive Infotainment Update Module | Network Router Configuration Storage |
Use Scenario: Storing updatable UI assets and feature modules in head-unit systems where over-the-air (OTA) updates must preserve core boot functionality. IC Role / Device Role / Timing Role: Sector-erasable Flash with 300 ms erase time per sector and erase suspend for interruptible updates. Use Value: Erase suspend enables immediate response to vehicle CAN bus interrupts during multi-sector firmware writes - maintains real-time system responsiveness. | Use Scenario: Storing configuration profiles, routing tables, and security certificates in enterprise-grade network infrastructure with zero-downtime upgrade requirements. IC Role / Device Role / Timing Role: High-reliability Flash memory supporting concurrent read (active config) and program (new profile) via dual-plane architecture. Use Value: RDY/BUSY pin and Data Polling (I/O7) provide deterministic completion signaling - essential for automated provisioning scripts and fail-safe rollback logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF1601C-70-4C-EKE | Single 3.3V supply; 70 ns access; 16 Mbit (1M×16); 32K-word uniform sectors only (no 4K-word sub-sectors) | Lacks byte-mode support and sector lockdown; no VPP acceleration or erase suspend | Choose for simpler, cost-sensitive designs where granular protection and concurrent operation are unnecessary |
| MX29LV160ETTI-70G | 3.0V–3.6V supply; 70 ns access; 16 Mbit; top/bottom boot configuration; 32K-word sectors only | No dual-plane architecture or erase suspend; different command set; lacks 128-bit protection register | Prefer when migrating from legacy MXIC designs or when boot-block flexibility outweighs concurrent operation needs |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160ETTI-70G, the AT49BV1614AT-70CI uniquely delivers sector-level lockdown, dual-plane concurrency, and VPP-accelerated programming - making it optimal for safety-critical, field-upgradable embedded systems requiring both security and real-time responsiveness.
Availability
AT49BV1614AT-70CI is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, automotive infotainment, and network infrastructure applications requiring stable component supply, extended temperature operation, and long-term firmware integrity.
Supply support for AT49BV1614AT-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 acquired Atmel in 2016 and continues to support its Flash memory portfolio with full documentation, longevity commitments, and industrial qualification.
The AT49BV/LV16X4A(T) family was designed specifically for embedded systems requiring reliable, in-system programmable non-volatile storage with robust data protection and real-time operational flexibility.
FAQ
What is the operating voltage range for AT49BV1614AT-70CI?
The AT49BV1614AT-70CI operates from 2.65V to 3.3V for the BV variant. It draws active current of 30 mA and standby current of 10 µA. The VPP pin accepts 5.0V ±0.5V or 12.0V ±0.5V for accelerated programming but may be left unconnected for standard VCC-only operation. All input pins tolerate up to 5.5V regardless of VCC level.
How does the dual-plane architecture of AT49BV1614AT-70CI improve system performance?
The AT49BV1614AT-70CI's dual-plane architecture allows reads from Plane B while programming or erasing Plane A - and vice versa. This eliminates mandatory wait states during firmware updates. For example, a system can validate new code in one plane while executing from the other, enabling seamless background upgrades without interrupting real-time operation of the AT49BV1614AT-70CI-based design.
Can AT49BV1614AT-70CI be used in byte-mode configurations?
Yes. The AT49BV1614AT-70CI supports both x8 and x16 data widths via the BYTE pin. When BYTE = logic "0", I/O0–I/O7 are active for byte-mode operation and I/O15 functions as LSB address input (A-1). When BYTE = logic "1", I/O0–I/O15 operate in word mode. This eliminates external bus-width translation logic and simplifies integration into 8-bit or 16-bit microcontroller systems using the AT49BV1614AT-70CI.
What mechanisms protect against accidental writes to AT49BV1614AT-70CI?
The AT49BV1614AT-70CI implements hardware data protection including VCC sense (inhibits programming if VCC < 1.8V), 10 ms power-on delay, noise filtering (rejects <15 ns pulses), and control-line inhibition (OE low, CE high, or WE high blocks programming). Additionally, sector lockdown and 128-bit protection register provide software-configurable, persistent write protection - ensuring firmware integrity across power cycles of the AT49BV1614AT-70CI.
How is end-of-program or end-of-erase detected on AT49BV1614AT-70CI?
The AT49BV1614AT-70CI provides three independent detection methods: (1) RDY/BUSY pin - open-drain output pulled low during internal cycles; (2) Data Polling - complement of programmed data appears on I/O7 until completion; (3) Toggle Bit - I/O6 toggles during operation and stops when complete. I/O2 also toggles during erase-suspend reads. These methods enable flexible, robust timing control in systems using the AT49BV1614AT-70CI without relying on fixed delays.
AT49BV1614AT-70CI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 48-TFBGA, CSPBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8, 1M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 50µs
- Access Time:
- 70 ns
- Voltage - Supply:
- 2.65V ~ 3.3V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-CBGA (6x8)
AT49BV1614AT-70CI FAQ
1.How can I place an order for AT49BV1614AT-70CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV1614AT-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 AT49BV1614AT-70CI reliable?
The price and inventory of AT49BV1614AT-70CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV1614AT-70CI is usually 5 days.
3.What payment methods are accepted for AT49BV1614AT-70CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV1614AT-70CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV1614AT-70CI?
AT49BV1614AT-70CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV1614AT-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 AT49BV1614AT-70CI?
For technical support, including AT49BV1614AT-70CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV1614AT-70CI requirements.
6.How does Aetrix verify that AT49BV1614AT-70CI is sourced from the original manufacturer or authorized distributors?
All AT49BV1614AT-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 AT49BV1614AT-70CI meets industry standards.
7.What is the process for return or replacement of AT49BV1614AT-70CI?
All AT49BV1614AT-70CI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV1614AT-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 AT49BV1614AT-70CI part is unused and in its original packaging.
Return procedure for AT49BV1614AT-70CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV1614AT-70CI Tags
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