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Microchip Technology AT49BV1614A-70CI
- Part No.:
- AT49BV1614A-70CI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA, CSPBGA
- Datasheet:
-
AT49BV1614A-70CI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48CBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,664
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Product details
Overview
AT49BV1614A-70CI from Microchip Technology (formerly Atmel) is a 16-Mbit (1M × 16 / 2M × 8) 3.3V 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, features erase suspend/resume, and targets embedded boot code storage in industrial controllers and communication modules.
For engineers reviewing the AT49BV1614A-70CI datasheet, AT49BV1614A-70CI pinout, AT49BV1614A-70CI application, or AT49BV1614A-70CI equivalent, key selection criteria include its 39-sector organization (31 × 64KB + 8 × 8KB), VPP-accelerated programming (5V/12V), 128-bit protection register, and TSOP/CBGA package compatibility for legacy board designs.
Technical Context
The AT49BV1614A-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 read 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, control-line inhibit). The RDY/BUSY open-drain output, Data Polling (I/O7), and Toggle Bit (I/O6/I/O2) provide three independent methods to detect program/erase completion.
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 - single-supply operation compatible with 3.3V logic systems |
| Sector Architecture | 39 sectors: 31 × 64KB + 8 × 8KB - enables granular firmware partitioning and secure boot block isolation |
| Program Time | 20 µs per word - fast field-upgrade capability without system downtime |
| Erase Time | 300 ms per sector - predictable erase scheduling for background maintenance tasks |
| Standby Current | 10 µA - ultra-low power retention for battery-backed or energy-sensitive applications |
Pinout & Package
AT49BV1614A-70CI is available in 48-lead TSOP (Type 1) and 48-ball CBGA packages. Pin functions are identical across both packages, with ball/pin mapping validated per Microchip doc 1411F.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A-1 alias on I/O15 in byte mode |
| I/O0–I/O15 | Data I/O (x16) / I/O0–I/O7 + A-1 (x8) | Configurable 16-bit or 8-bit data interface; BYTE pin selects mode |
| CE, OE, WE | Chip/Output/Write Enable | Dual-line control (CE+OE) prevents bus contention; WE initiates command latching |
| RDY/BUSY | Open-drain status output | Active-low signal for hardware flow control; supports wired-OR of multiple devices |
| VPP | Accelerated program/erase supply | Accepts 5V ±0.5V or 12V ±0.5V to reduce tBP/tSEC; optional - may be unconnected |
| RESET | Hardware initialization input | Forces device into read/standby mode; required to exit Single Pulse Program mode |
| BYTE | Mode select (x16/x8) | Logic high = 16-bit word mode (I/O0–I/O15 active); low = 8-bit byte mode (I/O0–I/O7 active) |
Key Features
| Feature | Design Value |
|---|---|
| Dual-plane concurrent operation | Enables real-time read from Plane B while erasing/programming Plane A - critical for zero-downtime firmware updates |
| Erase suspend/resume | Halts active sector erase to service urgent read/program requests in other sectors - improves system responsiveness |
| 128-bit protection register | Factory-programmed 64-bit ID + user-lockable 64-bit block - supports secure boot authentication and anti-cloning |
| Sector lockdown | Per-sector write-protection activated via command; locked sectors remain read-only until power cycle/reset |
| Three end-of-operation detection methods | RDY/BUSY pin, Data Polling (I/O7), and Toggle Bit (I/O6/I/O2) - provides software/hardware flexibility in timing-critical systems |
Applications
| Industrial PLC Firmware Storage | Telecom Line Card Boot Memory |
|---|---|
Use Scenario: Storing boot loader and configuration firmware in programmable logic controllers operating in harsh environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic 70 ns read access to initialize FPGA and microcontroller subsystems at power-up. Use Value: Sector lockdown protects bootloader integrity; dual-plane operation allows background firmware patching without halting I/O scanning cycles. | Use Scenario: Holding boot code and DSP firmware in carrier-grade telecom line cards requiring field-upgradable, tamper-resistant storage. IC Role / Device Role / Timing Role: Secure x16 Flash memory interfacing directly with SHARC or TMS320C6000 DSP buses for low-latency instruction fetch. Use Value: 128-bit protection register enables cryptographic binding of firmware to hardware; VPP acceleration reduces upgrade time during maintenance windows. |
| Medical Imaging System Configuration | Automotive Body Control Module |
Use Scenario: Storing calibration tables and safety-critical startup parameters in MRI and CT scanner subsystems. IC Role / Device Role / Timing Role: High-reliability Flash memory with 10 µA standby current and hardware data protection for fail-safe power-on initialization. Use Value: Erase suspend allows immediate response to emergency recalibration commands without waiting for ongoing sector erases to complete. | Use Scenario: Retaining ECU boot code and diagnostic routines in automotive body control units meeting AEC-Q100 Grade 3 requirements. IC Role / Device Role / Timing Role: 3.3V-compatible Flash memory with robust noise filtering and VCC sense protection against brown-out corruption. Use Value: Top/bottom boot block configuration supports flexible memory mapping for ASAM-compliant flash programming tools. |
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 | Same density (16Mbit), 70 ns access, but single-plane architecture; no erase suspend or dual-plane read-while-write | Lacks concurrent operation - requires full erase before read during updates; no 128-bit protection register | Choose when cost sensitivity outweighs need for background firmware update capability |
| MX29LV160ETTI-70G | 16Mbit, 70 ns, top-boot configuration; supports CFI command set but no VPP acceleration or sector lockdown | No hardware sector lock; relies on software-based write protection; lacks RDY/BUSY open-drain output | Select for CFI-compliant toolchains where standardized JEDEC interfaces are mandatory |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160ETTI-70G, the AT49BV1614A-70CI uniquely delivers concurrent dual-plane operation and hardware-enforced sector lockdown - enabling secure, zero-downtime firmware updates in mission-critical embedded systems.
Availability
AT49BV1614A-70CI is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, medical imaging subsystems, and automotive body control modules requiring stable component supply and long-term obsolescence management.
Supply support for AT49BV1614A-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 global semiconductor company specializing in microcontrollers, analog devices, and non-volatile memory solutions, with deep heritage in Flash technology through its acquisition of Atmel.
The AT49BV/LV16X4A(T) product line was designed for embedded systems requiring reliable, low-voltage Flash memory with advanced security and real-time update capabilities - particularly in industrial automation and communications infrastructure.
FAQ
What voltage range does the AT49BV1614A-70CI support for normal operation?
The AT49BV1614A-70CI operates from 2.65V to 3.3V for the BV variant (as indicated by the "BV" in the part number). It does not support 5V operation. Input levels tolerate up to 5.5V on address/control pins, but VCC must remain within the specified 2.65–3.3V range for correct functionality and data retention. The AT49BV1614A-70CI datasheet specifies this range under DC Operating Conditions.
Does the AT49BV1614A-70CI support both byte and word data interfaces?
Yes, the AT49BV1614A-70CI supports both configurations via the BYTE pin. When BYTE = high, it operates in 16-bit word mode (I/O0–I/O15 active); when BYTE = low, it operates in 8-bit byte mode (I/O0–I/O7 active, I/O15 functions as A-1 LSB address). This flexibility allows direct integration with 8-bit or 16-bit microprocessor buses without external glue logic.
How does the dual-plane architecture of the AT49BV1614A-70CI improve system performance?
The AT49BV1614A-70CI's dual-plane architecture allows reads from one memory plane (e.g., Plane B) while programming or erasing the other (e.g., Plane A). This eliminates the need to stall CPU execution during firmware updates. For example, a system can execute code from Plane B while reprogramming configuration data in Plane A - delivering true zero-downtime field upgrades.
Can the AT49BV1614A-70CI be used without connecting the VPP pin?
Yes, the AT49BV1614A-70CI functions fully with VPP unconnected or tied to ground. In that case, programming and erase operations use VCC only, resulting in standard timing (20 µs program, 300 ms sector erase). Connecting VPP to 5.0V ±0.5V or 12.0V ±0.5V accelerates those operations but is optional - the AT49BV1614A-70CI remains fully operational and compliant with all specifications without VPP.
What mechanisms protect against accidental writes to the AT49BV1614A-70CI?
The AT49BV1614A-70CI includes four hardware data protection layers: (1) VCC sense circuitry inhibits programming if VCC < 1.8V; (2) 10 ms power-on delay before accepting commands; (3) write inhibition if CE is high, OE is low, or WE is high; and (4) 15 ns noise filter on CE/WE inputs. These ensure robust immunity to power glitches and signal noise - critical for reliability in AT49BV1614A-70CI deployments.
AT49BV1614A-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)
AT49BV1614A-70CI FAQ
1.How can I place an order for AT49BV1614A-70CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV1614A-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 AT49BV1614A-70CI reliable?
The price and inventory of AT49BV1614A-70CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV1614A-70CI is usually 5 days.
3.What payment methods are accepted for AT49BV1614A-70CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV1614A-70CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV1614A-70CI?
AT49BV1614A-70CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV1614A-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 AT49BV1614A-70CI?
For technical support, including AT49BV1614A-70CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV1614A-70CI requirements.
6.How does Aetrix verify that AT49BV1614A-70CI is sourced from the original manufacturer or authorized distributors?
All AT49BV1614A-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 AT49BV1614A-70CI meets industry standards.
7.What is the process for return or replacement of AT49BV1614A-70CI?
All AT49BV1614A-70CI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV1614A-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 AT49BV1614A-70CI part is unused and in its original packaging.
Return procedure for AT49BV1614A-70CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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