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Microchip Technology AT49BV160CT-70TU
- Part No.:
- AT49BV160CT-70TU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV160CT-70TU.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,280
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Product details
Overview
AT49BV160CT-70TU from Microchip (formerly Atmel) is a 16-Mbit (1M × 16) single-supply 3.3V Flash memory IC with sector erase architecture, 70 ns access time, and dual-package support (48-pin TSOP-I and 46-ball CBGA). It features Erase/Program Suspend, CFI compliance, and flexible hardware/software sector protection - deployed in embedded boot code storage for industrial controllers and network edge devices.
For engineers reviewing the AT49BV160CT-70TU datasheet, AT49BV160CT-70TU pinout, AT49BV160CT-70TU application, or AT49BV160CT-70TU equivalent, key selection considerations include sector lock granularity (31 × 64KB + 8 × 8KB), VPP-enabled write protection, 12 µs word program time, suspend/resume capability for concurrent read/program operations, and TSOP/CBGA package compatibility with legacy 3.3V microcontroller interfaces.
Technical Context
The AT49BV160CT-70TU implements a command-driven Write State Machine (WSM) that executes embedded erase and program algorithms without external timing control. Its dual-voltage I/O architecture separates VCCQ (output driver supply) from VCC (core logic), enabling 1.8–2.2V output levels while maintaining 2.65–3.6V core operation.
It supports Common Flash Interface (CFI) query mode (entry via 98h command) for runtime configuration discovery and integrates a 128-bit protection register with factory-programmed Sector A and user-programmable (and lockable) Sector B - used for secure device identification and firmware anti-tampering in certified industrial systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit words) - supports full boot image storage for 32-bit MCUs with 16-bit data bus. |
| Access Time | 70 ns - enables direct execution (XIP) from flash in real-time control loops with ≤14 MHz bus timing. |
| Supply Voltage | 2.65V to 3.6V - single-supply operation eliminates need for separate 5V or 12V programming rails. |
| Erase Architecture | 39 sectors: 31 × 64KB + 8 × 8KB - allows fine-grained firmware update without erasing entire application space. |
| Word Program Time | 12 µs - supports background programming during idle CPU cycles in interrupt-driven systems. |
| Sector Erase Time | 300 ms max - predictable erase latency enables deterministic firmware update state machine design. |
| Endurance | 100,000 erase cycles per sector - qualifies for 10+ years of field firmware updates in industrial gateways. |
| CFI Support | Compliant with JEDEC JESD68 - enables auto-detection and parameter-driven driver initialization in Linux MTD and U-Boot. |
Pinout & Package
AT49BV160CT-70TU is available in two RoHS-compliant packages: 48-pin TSOP-I (Type 1, 12 × 20 mm) and 46-ball CBGA (8 × 10 mm, 0.8 mm pitch). Pin functions are identical across both packages; NC pins are not internally connected.
| 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 driven to VCCQ − 0.1V level; inputs tolerate 0–5.5V for mixed-voltage system interfacing. |
| CE | Chip Enable | Active-low chip select; when high, places outputs in high-impedance state to prevent bus contention. |
| OE | Output Enable | Active-low read strobe; used with CE to implement dual-line control for glitch-free read timing. |
| WE | Write Enable | Active-low write strobe; latches command/data on rising edge; must be toggled for all command sequences. |
| VPP | Write Protection Supply | Enables program/erase only when ≥1.5V; inhibits all writes if <0.4V - prevents accidental corruption during power ramp. |
| WP | Hardware Sector Protect | Controls Hardlock override: low = permanent sector lock; high = unlock via software command. |
| RESET | Device Initialization | Active-low reset input; forces device into read mode and halts ongoing erase/program operations. |
| VCCQ | Output Driver Supply | Separate 1.8–2.2V or 2.65–3.6V supply for I/O drivers - decouples output swing from core voltage. |
| GND / VCC | Power Ground / Core Supply | Dual power domains: VCC powers logic and WSM; GND reference for all signals and supplies. |
Key Features
| Feature | Design Value |
|---|---|
| Erase/Program Suspend | Allows reading or programming any non-erasing sector during active sector erase - enables real-time diagnostics during firmware update. |
| Flexible Sector Protection | Independent Softlock (software-unlockable) and Hardlock (WP-pin-gated) modes per sector - supports secure bootloader + updatable application partitioning. |
| 128-bit Protection Register | Factory-programmed 64-bit ID + user-programmable 64-bit lockable space - used for device binding and firmware signature validation. |
| Common Flash Interface (CFI) | Standardized query table at known offsets - eliminates hardcoded timing parameters in BSPs and enables multi-vendor flash abstraction layers. |
| Hardware Data Protection | VCC sense, 10 ms power-on delay, and VPP monitoring - prevents partial writes during brown-out or unstable power-up conditions. |
| Green Packaging | Pb/Halide-free TSOP and CBGA options - meets RoHS Directive 2011/65/EU and IPC-1752A material declaration requirements. |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Memory |
|---|---|
Use Scenario: Storing boot loader and FPGA configuration bitstream in DIN-rail mounted programmable logic controllers operating in -40°C to +85°C environments. IC Role / Device Role / Timing Role: Nonvolatile boot memory mapped to MCU's 16-bit external bus; accessed at power-on reset and during field firmware upgrades. Use Value: 70 ns access time ensures deterministic boot within 500 ms; sector erase architecture isolates bootloader (locked) from application (updatable) partitions. | Use Scenario: Holding primary and fallback boot images in carrier-grade Ethernet routers requiring zero-downtime firmware activation. IC Role / Device Role / Timing Role: Dual-image flash storage with CFI-queried timing parameters - enables automatic driver adaptation across multiple flash vendors. Use Value: Erase suspend allows reading active image while programming fallback image; 100K-cycle endurance supports >500 field updates over 10-year product life. |
| Medical Device Configuration Storage | Automotive Telematics Module |
Use Scenario: Retaining calibration tables, user preferences, and regulatory audit logs in FDA-cleared diagnostic imaging equipment. IC Role / Device Role / Timing Role: Secure parameter store with 128-bit protection register used to bind firmware version to device serial number. Use Value: Hardlock + WP pin prevents unauthorized reprogramming during service; VPP-based write inhibit blocks corruption during battery-backed power transitions. | Use Scenario: Storing GNSS firmware and cellular modem profiles in ISO/TS 16949-certified telematics control units exposed to automotive temperature cycling. IC Role / Device Role / Timing Role: Boot memory interfaced to ARM Cortex-A53 SoC via 16-bit EBI; operates under 12V battery supply with transient suppression. Use Value: 2.65–3.6V operation tolerates wide automotive input range; 300 ms sector erase enables OTA update partitioning without disrupting CAN bus communication. |
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, 3.3V-only, TSOP-48; lacks CFI and 128-bit protection register. | No CFI requires hardcoded driver timing; no protection register limits secure boot implementation. | Select when cost sensitivity outweighs CFI flexibility and security requirements. |
| MX29LV160ETTI-70G | 16Mbit, 70 ns, 3.0–3.6V; supports top/bottom boot block but uses different command set and lacks VPP pin. | VPP absence removes hardware write-inhibit layer; different status register layout complicates driver porting. | Select for drop-in replacement where existing MXIC driver stack is already validated. |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160ETTI-70G, the AT49BV160CT-70TU provides unique VPP-based hardware write protection, standardized CFI query capability, and a factory-seeded 128-bit protection register - making it preferred for safety-critical and secure-boot applications where tamper resistance and driver portability are mandatory.
Availability
AT49BV160CT-70TU is available at Aetrix Electronics and suitable for industrial automation, networking infrastructure, and medical electronics requiring stable component supply and long-term lifecycle assurance.
Supply support for AT49BV160CT-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 Inc. is a leading provider of microcontrollers, analog components, and Flash memory solutions, acquired Atmel in 2016 and maintains full technical and manufacturing continuity for legacy Atmel Flash products.
The AT49BV160CT-70TU belongs to Microchip's legacy parallel NOR Flash product line, designed specifically for reliable, in-system programmable boot memory in resource-constrained embedded systems with strict timing and security requirements.
FAQ
What is the maximum operating temperature range for the AT49BV160CT-70TU?
The AT49BV160CT-70TU is rated for industrial temperature operation from -40°C to +85°C. This specification is confirmed in the Absolute Maximum Ratings section of the official datasheet (3367F–FLASH–4/05), and applies to both TSOP and CBGA package variants under continuous bias conditions.
Does the AT49BV160CT-70TU support true 16-bit word programming, or is it byte-addressable only?
The AT49BV160CT-70TU supports true 16-bit word programming: each write operation programs one 16-bit word (I/O0–I/O15) at a time, as defined by the Word Program command sequence (40h setup + data write). The device does not support byte-level programming - all program operations target full 16-bit words aligned to even addresses.
How does the VPP pin function in normal read mode versus program/erase mode for the AT49BV160CT-70TU?
In normal read mode, the VPP pin may be tied to VCC or left unconnected (though datasheet recommends tying to VCC for stability); it has no effect. During program or erase, VPP must be ≥1.5V to enable operations - if VPP drops below 0.4V, all program/erase commands are immediately inhibited and SR3 (VPP Status) is set to "1" in the status register.
Can the AT49BV160CT-70TU be used in systems with a 1.8V I/O interface?
Yes - the AT49BV160CT-70TU supports split-rail I/O: VCCQ can be regulated to 2.0V ±10% for 1.8V–2.2V output levels while VCC remains at 2.65V–3.0V. I/O pins tolerate 0–5.5V inputs regardless of VCCQ level, enabling direct connection to 1.8V, 3.3V, or 5V logic families.
Is the AT49BV160CT-70TU pin-compatible with the AT49BV160C-70TU variant?
Yes - the AT49BV160CT-70TU and AT49BV160C-70TU share identical pinouts, electrical specifications, and command sets. The "T" suffix denotes the TSOP package option; both part numbers refer to functionally identical devices with the same 48-pin TSOP-I footprint and timing behavior.
AT49BV160CT-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:
- 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-70TU FAQ
1.How can I place an order for AT49BV160CT-70TU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV160CT-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 AT49BV160CT-70TU reliable?
The price and inventory of AT49BV160CT-70TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV160CT-70TU is usually 5 days.
3.What payment methods are accepted for AT49BV160CT-70TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV160CT-70TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV160CT-70TU?
AT49BV160CT-70TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV160CT-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 AT49BV160CT-70TU?
For technical support, including AT49BV160CT-70TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV160CT-70TU requirements.
6.How does Aetrix verify that AT49BV160CT-70TU is sourced from the original manufacturer or authorized distributors?
All AT49BV160CT-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 AT49BV160CT-70TU meets industry standards.
7.What is the process for return or replacement of AT49BV160CT-70TU?
All AT49BV160CT-70TU units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV160CT-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 AT49BV160CT-70TU part is unused and in its original packaging.
Return procedure for AT49BV160CT-70TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV160CT-70TU Tags
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