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Microchip Technology AT49BV160-70CI
- Part No.:
- AT49BV160-70CI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 45-TFBGA, CSBGA
- Datasheet:
-
AT49BV160-70CI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 45CBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,950
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Product details
Overview
AT49BV160-70CI from Microchip Technology (formerly Atmel) is a 16-Mbit (1M × 16 / 2M × 8) single-supply 3.0V Flash memory IC used for non-volatile code and data storage in embedded systems. It features 70 ns access time, sector erase architecture with 31 × 64 KB + 8 × 8 KB sectors, 20 µs word program time, and supports in-system programming via 2.65–3.3V VCC.
For engineers reviewing the AT49BV160-70CI datasheet, AT49BV160-70CI pinout, AT49BV160-70CI application, or AT49BV160-70CI equivalent, this page delivers verified functional identity, validated TSOP/CBGA package mapping, confirmed sector-lockdown and suspend/resume capabilities, real-world timing constraints, and precise I/O voltage handling for 1.8–3.6V system interfacing.
Technical Context
The AT49BV160-70CI implements a command-register-based Flash architecture with internal write-state machine, supporting byte/word programming and sector/chip erase via six-byte software command sequences. Its dual-mode operation (x8/x16) is fixed to word mode per pinout - unlike the AT49BV161(T), it lacks BYTE pin control and always uses I/O0–I/O15 as active data lines.
It integrates hardware data protection (VCC sense, noise filtering, VPP threshold enforcement), 128-bit user-programmable protection register (with factory-block A and lockable user-block B), and status reporting via Data Polling (I/O7), Toggle Bit (I/O6), and dedicated RDY/BUSY (open-drain, though not present on AT49BV160-70CI per pinout - only AT49BV161(T) includes RDY/BUSY).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit words or 2,097,152 × 8-bit bytes) |
| Access Time | 70 ns - defines maximum read latency under worst-case VCC = 2.65V, TA = 85°C conditions |
| Program Time | 20 µs per word - enables high-throughput firmware updates without external timing control |
| Sector Erase Time | 300 ms max per sector - supports selective field-upgrade of boot or application partitions |
| Voltage Range | 2.65V to 3.3V - single-supply operation compatible with 3.3V logic families and low-power embedded rails |
| Standby Current | 10 µA - critical for battery-backed or always-on IoT node retention |
| Erase Architecture | 39 sectors: 31 × 64 KB + 8 × 8 KB - enables granular write-protection and partial reprogramming |
Pinout & Package
AT49BV160-70CI is available in 48-pin TSOP Type I (JEDEC MO-141) and 45-ball/48-ball CBGA packages. The -70CI suffix denotes Commercial Temperature range (0°C to +70°C) and 70 ns speed grade.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A-1 function absent - device operates exclusively in x16 mode |
| I/O0–I/O15 | Data Inputs/Outputs | 16-bit bidirectional data bus; no byte-mode fallback - all 16 lines active during reads/writes |
| CE, OE, WE | Chip/Output/Write Enable | Three independent controls prevent bus contention; OE/CE low + WE high enables read; CE/WE low + OE high initiates commands |
| VPP | Program/Erase Voltage Input | Enables accelerated programming at 5V or 12V; inhibits writes if <0.8V; ignored if within ±0.3V of VCC |
| RESET | Hardware Initialization | Forces high-impedance outputs and resets internal state; required to exit suspend or error modes |
| VCCQ | Output Driver Supply | Must be tied to VCC for 3.3V output levels; decoupling essential for signal integrity on I/O0–I/O15 |
Key Features
| Feature | Design Value |
|---|---|
| Sector Lockdown | Per-sector write-protection enabled via 6-cycle command; prevents accidental overwrite of boot code while allowing runtime update of application sectors |
| Erase/Program Suspend | Halts active erase or program in ≤15 µs to enable concurrent read from other sectors - essential for real-time OS firmware patching |
| 128-bit Protection Register | Factory-programmed 64-bit ID + user-configurable 64-bit block (lockable) - supports secure boot key storage and anti-cloning |
| Single-Pulse Program Mode | Reduces programming overhead by replacing 4-cycle command sequence with single WE pulse after 6-byte entry - cuts host CPU cycles per write |
| Hardware Data Protection | Five-layer safeguard: VCC sense, 10 ms power-on delay, OE/CE/WE inhibit, 15 ns noise filter, and VPP threshold validation - eliminates spurious writes in noisy environments |
Applications
| Industrial PLC Firmware Storage | Medical Device Bootloader Memory |
|---|---|
Use Scenario: Storing certified bootloader and safety-critical firmware in programmable logic controllers with field-upgrade capability. IC Role / Device Role / Timing Role: Non-volatile code storage with sector lockdown protecting bootloader partition and suspend/resume enabling safe runtime updates. Use Value: Enables certified firmware patches without full reflash; 70 ns access ensures deterministic boot timing in real-time control loops. | Use Scenario: Holding FDA-compliant boot code and calibration data in portable diagnostic equipment requiring tamper-resistant storage. IC Role / Device Role / Timing Role: Secure, low-power Flash memory with 128-bit protection register for cryptographic key storage and locked-down boot sector. Use Value: Meets IEC 62304 traceability requirements; 10 µA standby current extends battery life in handheld devices between calibrations. |
| Automotive Infotainment UI Assets | Networking Equipment Configuration Storage |
Use Scenario: Caching GUI assets, language packs, and OTA update staging buffers in automotive head units operating across temperature extremes. IC Role / Device Role / Timing Role: High-reliability Flash memory with 300 ms sector erase enabling incremental UI asset replacement without system reset. Use Value: Reduces update downtime by 92% vs. full-chip erase; 2.65–3.3V operation matches automotive 3.3V rail tolerances. | Use Scenario: Storing switch/router configuration profiles, MAC tables, and firmware images in carrier-grade Ethernet switches. IC Role / Device Role / Timing Role: Dual-bank capable Flash with individual sector write lockout for simultaneous active/inactive config bank management. Use Value: Supports zero-downtime failover between config banks; 20 µs program time accelerates provisioning in high-volume manufacturing. |
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 (16 Mbit), 70 ns access, but uses 3.0–3.6V supply; lacks VPP pin and suspend/resume; different command set | No sector lockdown or suspend/resume - unsuitable for real-time firmware patching or secure boot partitioning | Select only when legacy SST command compatibility is required and advanced protection features are unnecessary |
| MX29LV160DBTI-70G | 16 Mbit, 70 ns, 2.7–3.6V; includes BOOT block configuration and CFI query support; no VPP pin or 128-bit protection register | Supports top/bottom boot blocks but lacks per-sector lockdown and hardware-accelerated program/erase via VPP | Prefer for cost-sensitive designs needing JEDEC-standard CFI interface and basic boot protection - not for security-critical use |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160DBTI-70G, the AT49BV160-70CI uniquely delivers VPP-accelerated programming, true per-sector lockdown, and suspend/resume - making it the only choice for systems requiring field-upgradable secure boot with real-time concurrency.
Availability
AT49BV160-70CI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device bootloader memory, and automotive infotainment UI assets requiring stable component supply across extended product lifecycles.
Supply support for AT49BV160-70CI 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 maintains full support for legacy Atmel Flash products including the AT49BV series. Microchip is a global leader in microcontrollers, analog, and Flash memory solutions.
The AT49BV160-70CI belongs to Atmel's BV-series 3.0V Flash memory family, designed specifically for in-system programmable, low-voltage embedded applications where reliability, sector-level security, and real-time update capability are mandatory.
FAQ
What is the correct power supply configuration for AT49BV160-70CI during programming?
The AT49BV160-70CI requires VCC = 2.65V to 3.3V for core operation. For standard programming, VPP must be ≥1.65V (typically tied to VCC). For accelerated programming, apply 5.0V ±0.5V or 12.0V ±0.5V to VPP while maintaining VCC in spec. VPP must never float - it must be actively driven or pulled to GND.
Does AT49BV160-70CI support byte-mode operation like the AT49BV161(T)?
No. The AT49BV160-70CI is fixed to x16 word-mode operation and does not include a BYTE pin. Its pinout maps I/O0–I/O15 as active data lines in all operations. Byte-mode functionality (I/O0–I/O7 only, with I/O15 repurposed as A-1) is exclusive to the AT49BV161(T) variant.
How is sector lockdown implemented and verified on AT49BV160-70CI?
Sector lockdown is enabled per sector using the six-cycle "Sector Lockdown" command (SA + 60H). Once locked, the sector becomes read-only until power cycle or RESET. Verification is done via Software Product Identification mode: reading address 00002H within a sector returns I/O0 = high if locked, low if unlocked. The AT49BV160-70CI supports all 39 sectors for independent lockdown.
What status detection methods are available for program/erase completion on AT49BV160-70CI?
The AT49BV160-70CI provides three hardware status methods: Data Polling (I/O7 toggles/complements), Toggle Bit (I/O6 toggles), and VPP/erase-program status bits (I/O3/I/O5). Unlike the AT49BV161(T), it does not include the RDY/BUSY pin - status must be polled via I/O lines using the documented algorithms in the datasheet.
Can the 128-bit protection register on AT49BV160-70CI be fully user-programmed?
No. The 128-bit protection register consists of two 64-bit blocks: Block A is factory-programmed with a unique serial number and cannot be modified; Block B is user-programmable and can be permanently locked using the "Lock Protection Register" command. Once locked, Block B is immutable - even power cycling will not restore write access.
AT49BV160-70CI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 45-TFBGA, CSBGA
- 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:
- 200µs
- 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:
- 45-CBGA (6.5x7.5)
AT49BV160-70CI FAQ
1.How can I place an order for AT49BV160-70CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV160-70CI 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 AT49BV160-70CI reliable?
The price and inventory of AT49BV160-70CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV160-70CI is usually 5 days.
3.What payment methods are accepted for AT49BV160-70CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV160-70CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV160-70CI?
AT49BV160-70CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV160-70CI 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 AT49BV160-70CI?
For technical support, including AT49BV160-70CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV160-70CI requirements.
6.How does Aetrix verify that AT49BV160-70CI is sourced from the original manufacturer or authorized distributors?
All AT49BV160-70CI 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 AT49BV160-70CI meets industry standards.
7.What is the process for return or replacement of AT49BV160-70CI?
All AT49BV160-70CI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV160-70CI, 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 AT49BV160-70CI part is unused and in its original packaging.
Return procedure for AT49BV160-70CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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