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Microchip Technology AT49BV160CT-70TI
- Part No.:
- AT49BV160CT-70TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV160CT-70TI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,161
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Product details
Overview
AT49BV160CT-70TI from Microchip (formerly Atmel) is a 16-Mbit (1,048,576 × 16) single-supply 3.3V Flash memory IC with sector-erase architecture, 70 ns access time, and flexible hardware/software protection. It supports in-system programming in embedded controllers, BIOS storage, and firmware update modules where nonvolatile code/data retention and field reprogrammability are required.
For engineers reviewing the AT49BV160CT-70TI datasheet, AT49BV160CT-70TI pinout, AT49BV160CT-70TI application, or AT49BV160CT-70TI equivalent, key selection considerations include sector lock granularity (31×64KB + 8×8KB), erase suspend/resume capability, CFI compliance for auto-configuration, VPP/WP dual write-protection scheme, and TSOP-48/CBGA-46 package compatibility.
Technical Context
The AT49BV160CT-70TI implements a command-driven Write State Machine (WSM) that manages program/erase operations autonomously using internal voltage generation. Its dual-sector protection model-Softlock (software-unlockable) and Hardlock (WP-pin-gated)-enables mixed-criticality firmware partitioning.
It features a 128-bit protection register with factory-programmed Sector A and user-programmable (and lockable) Sector B, plus Common Flash Interface (CFI) support for runtime device interrogation. The status register (I/O7–I/O0) provides real-time WSM state, error flags (VPPS, PS, ES), and suspend indicators (PSS, ESS) with precise timing control via CE/OE toggling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 words × 16 bits); sufficient for boot code + configuration data in mid-complexity microcontroller systems. |
| Access Time | 70 ns max; enables direct interface with 14 MHz bus clocks without wait states in legacy 8051/ARM7-based designs. |
| Supply Voltage | 2.65V to 3.6V single supply; eliminates need for separate VCC/VPP rails and simplifies power sequencing. |
| Program Time | 12 µs per word; allows rapid patch updates in field-deployed devices with minimal downtime. |
| Erase Time | 300 ms per sector; predictable latency for firmware rollback or recovery partitions. |
| Endurance | ≥100,000 erase cycles per sector; supports frequent OTA updates over 10+ years in industrial gateways. |
| CFI Support | Yes (98h query mode); enables OS/driver-level flash abstraction without hard-coded timing or geometry assumptions. |
Pinout & Package
AT49BV160CT-70TI is available in 48-pin TSOP Type I (JEDEC MO-141BA) and 46-ball CBGA (ball-down) packages. Pin functions are identical across both packages; NC pins are unused and must be left unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A19–A8 must be 0 for protection register access. |
| I/O0–I/O15 | Bidirectional Data Bus | 16-bit parallel interface; outputs high-impedance when CE or OE is high to prevent bus contention. |
| CE | Chip Enable | Active-low chip select; combined with OE/WE to enable read/write/erase command latching on rising edge. |
| OE | Output Enable | Active-low output control; toggling OE (or CE) latches status register contents for reliable polling. |
| WE | Write Enable | Active-low write strobe; rising edge latches command/data during program/erase setup cycles. |
| VPP | Write Protection Voltage | Must be ≥1.5V for program/erase; <0.4V inhibits all writes - used for hardware lockout during power-up. |
| WP | Write Protect Input | Controls Hardlock override: low = permanent sector lock; high = unlockable via software command. |
| RESET | Device Initialization | Active-low reset halts ongoing operations and forces return to read mode on release. |
| VCCQ | Output Power Supply | Separate 1.8–2.2V or 2.65–3.6V rail for I/O drivers; decouples output swing from core VCC for mixed-voltage systems. |
Key Features
| Feature | Design Value |
|---|---|
| Suspend/Resume for Erase & Program | Enables concurrent read/program from non-erasing sectors - critical for real-time firmware update without system freeze. |
| Flexible Sector Protection | Independent Softlock (software-unlockable) and Hardlock (WP-gated) per sector - supports secure bootloader + updatable app partitioning. |
| 128-bit Protection Register | Factory-programmed 64-bit ID + user-lockable 64-bit key space - enables device authentication and anti-cloning in certified systems. |
| Common Flash Interface (CFI) | Standardized query table accessible at 98h command - eliminates hardcoded flash geometry in BSPs and enables multi-vendor firmware portability. |
| Hardware Data Protection | VCC sense (<1.8V inhibit), VPP validation, and control-line gating (OE/CE/WE) prevent spurious writes during brown-out or noise events. |
Applications
| Industrial HMI Firmware Storage | Embedded Controller Bootloader |
|---|---|
|
Use Scenario: Storing GUI assets, calibration tables, and localized language strings in programmable HMIs with field-upgrade capability. IC Role / Device Role / Timing Role: Nonvolatile code/data repository with sector-level write lock for factory-calibrated parameters and user-modifiable UI elements. Use Value: Softlock allows runtime update of language packs; Hardlock + WP pin prevents accidental overwrite of safety-critical calibration data during service. |
Use Scenario: Holding primary bootloader and fail-safe recovery image in network-connected PLCs requiring secure firmware rollback. IC Role / Device Role / Timing Role: Dual-partition Flash storing active firmware and golden image, accessed via microcontroller's external memory interface. Use Value: Erase suspend enables background verification of new firmware while maintaining live operation; CFI ensures bootloader compatibility across flash revisions. |
| Medical Device Configuration Memory | Automotive Diagnostic Module Code Storage |
|
Use Scenario: Retaining device-specific settings (e.g., sensor offsets, alarm thresholds) across power cycles in Class II medical instruments. IC Role / Device Role / Timing Role: Parameter EEPROM replacement with higher density, faster write, and deterministic erase latency. Use Value: 128-bit protection register stores cryptographic keys for HIPAA-compliant data integrity; 100K-cycle endurance exceeds 15-year device lifetime. |
Use Scenario: Hosting OBD-II protocol stack and vehicle-specific DTC definitions in aftermarket diagnostic tools with regulatory firmware traceability. IC Role / Device Role / Timing Role: Secure, field-updatable firmware store interfaced to ARM Cortex-M4 host MCU via 16-bit parallel bus. Use Value: VPP pin tied to regulated 3.3V only during update windows - prevents unauthorized reprogramming in vehicle environments. |
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 16Mbit ×16, 70 ns, 2.7–3.6V; lacks CFI, no VPP pin, uses single WP pin only. | No hardware VPP lockout or 128-bit protection register; limited to basic firmware storage without security features. | Choose when cost sensitivity outweighs security requirements and CFI auto-detection is unnecessary. |
| MX29LV160ETTI-70G | 16Mbit ×16, 70 ns, 2.7–3.6V; includes CFI and WP but no VPP pin or suspend/resume functionality. | Cannot pause erase/program for concurrent reads - unsuitable for real-time update scenarios requiring zero-downtime. | Prefer when CFI is needed but suspend/resume and dual-protection are not required in the system architecture. |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160ETTI-70G, the AT49BV160CT-70TI uniquely combines VPP-based hardware write inhibition, full erase/program suspend/resume, and a factory-seeded 128-bit protection register - making it the only option among the three suitable for safety-certified or security-audited firmware storage.
Availability
AT49BV160CT-70TI is available at Aetrix Electronics and suitable for industrial HMI firmware storage, embedded controller bootloader implementation, and medical device configuration memory requiring stable component supply and long-term lifecycle support.
Supply support for AT49BV160CT-70TI 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 technical and supply chain responsibility for legacy Atmel Flash products including the AT49BV160CT-70TI.
This device belongs to Atmel's legacy parallel-interface Flash memory family, designed specifically for cost-sensitive, reliability-critical embedded systems requiring in-system reprogrammability without external high-voltage circuitry.
FAQ
What is the function of the VPP pin on the AT49BV160CT-70TI?
The VPP pin on the AT49BV160CT-70TI serves as a hardware write-enable signal: program and erase operations are inhibited when VPP < 0.4V, and enabled only when VPP ≥ 1.5V. This prevents accidental writes during power-up or brown-out conditions. The AT49BV160CT-70TI datasheet specifies that VPP must never be left floating and requires proper decoupling to ensure reliable operation across temperature and voltage corners.
Does the AT49BV160CT-70TI support true simultaneous read-while-erase functionality?
No - the AT49BV160CT-70TI supports erase suspend/resume, not true simultaneous read-while-erase. When an erase is suspended using the B0h command, the device halts the erase operation and allows reads or programming from *other* sectors. However, the suspended sector remains inaccessible until resumed. This behavior is explicitly defined in the AT49BV160CT-70TI datasheet Section 4.9 and confirmed by the status register ESS bit (SR6).
How many sectors does the AT49BV160CT-70TI have, and what are their sizes?
The AT49BV160CT-70TI has 39 sectors total: 31 sectors of 64 KB (32K words) and 8 sectors of 8 KB (4K words). This architecture is documented in the AT49BV160CT-70TI datasheet Section 1 ("Description") and Table 24 ("Sector Address Table"), which maps SA0–SA7 to 8K/4K blocks and SA8–SA38 to 64K/32K blocks - totaling 16 Mbit of addressable memory.
Can the AT49BV160CT-70TI be used with a 1.8V I/O interface?
Yes - the AT49BV160CT-70TI supports split-rail I/O: VCCQ can be regulated to 2.0V ±10% for 1.8–2.2V output levels while VCC remains at 2.65–3.0V. This is specified in AT49BV160CT-70TI datasheet Section 4.16. However, address/control inputs (A0–A19, CE, OE, WE, RESET, WP) tolerate 0–5.5V regardless of VCCQ, enabling direct connection to 3.3V or 5V logic families.
Is the AT49BV160CT-70TI pin-compatible with the AT49BV160C-70TI?
Yes - the AT49BV160CT-70TI and AT49BV160C-70TI share identical pinouts, electrical specifications, and command sets. The "T" suffix denotes top-boot block configuration (vs. bottom-boot for non-T variants), but physical packaging, pin assignment, and timing parameters are fully interchangeable per the AT49BV160CT-70TI datasheet revision 3367F.
AT49BV160CT-70TI 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:
- 16Mbit
- Memory Organization:
- 1M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 120µs
- Access Time:
- 70 ns
- Voltage - Supply:
- 2.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
AT49BV160CT-70TI FAQ
1.How can I place an order for AT49BV160CT-70TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV160CT-70TI 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 AT49BV160CT-70TI reliable?
The price and inventory of AT49BV160CT-70TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV160CT-70TI is usually 5 days.
3.What payment methods are accepted for AT49BV160CT-70TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV160CT-70TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV160CT-70TI?
AT49BV160CT-70TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV160CT-70TI 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 AT49BV160CT-70TI?
For technical support, including AT49BV160CT-70TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV160CT-70TI requirements.
6.How does Aetrix verify that AT49BV160CT-70TI is sourced from the original manufacturer or authorized distributors?
All AT49BV160CT-70TI 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 AT49BV160CT-70TI meets industry standards.
7.What is the process for return or replacement of AT49BV160CT-70TI?
All AT49BV160CT-70TI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV160CT-70TI, 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 AT49BV160CT-70TI part is unused and in its original packaging.
Return procedure for AT49BV160CT-70TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV160CT-70TI Tags
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