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Microchip Technology AT49BV160C-70TI
- Part No.:
- AT49BV160C-70TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV160C-70TI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,564
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Product details
Overview
AT49BV160C-70TI from Microchip Technology (formerly Atmel) is a 16-Mbit (1M × 16) 3.0V-only parallel Flash memory IC used for non-volatile code and data storage in embedded systems. It features 70 ns access time, sector erase architecture with 39 independently lockable sectors (31 × 64 KB + 8 × 8 KB), and supports in-system programming via single 2.65–3.6V supply. It is commonly deployed in industrial controllers and legacy telecom baseband modules requiring reliable firmware storage.
For engineers reviewing the AT49BV160C-70TI datasheet, AT49BV160C-70TI pinout, AT49BV160C-70TI application, or AT49BV160C-70TI equivalent, key selection considerations include its TSOP-48/CBGA-46 dual-package support, CFI-compliant interface for auto-configuration, Erase/Program Suspend capability for real-time multitasking, and flexible Softlock/Hardlock sector protection with VPP/WP hardware control.
Technical Context
The AT49BV160C-70TI implements a command-driven Write State Machine (WSM) that executes embedded erase and program algorithms without external timing control. Its dual-bus-cycle command protocol (e.g., 20h/D0h for sector erase, 40h/DIN for word program) operates under standard microprocessor write timings with CE/OE/WE control logic.
It integrates a 128-bit protection register (factory-programmed Sector A + user-programmable Sector B), status register (SR7–SR0) with dedicated bits for WSM readiness, suspend states, VPP detection, and sector lock errors, and supports Common Flash Interface (CFI) query mode via 98h command to enable runtime device characterization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit words) - provides sufficient space for boot code and configuration data in resource-constrained MCU systems. |
| Access Time | 70 ns - enables direct interfacing with 14 MHz bus clocks without wait states in legacy 8051/68K-based designs. |
| Supply Voltage | 2.65 V to 3.6 V - allows operation from single Li-ion or regulated 3.3 V rails without auxiliary voltage translation. |
| Erase Architecture | 39 sectors: 31 × 64 KB + 8 × 8 KB - permits granular firmware updates without full chip erasure, reducing field upgrade time. |
| Program Time | 12 µs per word - supports efficient patching of small code/data segments during runtime. |
| Erase Time | 300 ms per sector - predictable latency for background erase operations in safety-critical applications. |
| Endurance | 100,000 erase cycles - meets long-life requirements for industrial equipment with infrequent firmware revisions. |
| CFI Support | Yes - enables OS-level flash drivers (e.g., Linux MTD) to auto-detect geometry, timing, and command sets without hard-coded parameters. |
Pinout & Package
AT49BV160C-70TI is available in two RoHS-compliant packages: 48-pin TSOP-I (Type 1, 12 × 20 mm) and 46-ball CBGA (8 × 10 mm, ball-down). Both packages support identical pin functions and timing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A19–A8 must be 0 when accessing protection register. |
| I/O0–I/O15 | Bidirectional Data Bus | 16-bit parallel data path; outputs driven to VCCQ − 0.1 V, inputs tolerant to 5.5 V. |
| CE | Chip Enable | Active-low chip select; combined with OE determines read/write bus contention avoidance. |
| OE | Output Enable | Active-low output control; latches status register on falling edge for reliable polling. |
| WE | Write Enable | Active-low write strobe; rising edge latches command/address/data in two-cycle sequences. |
| VPP | Write Protection Voltage | Must be ≥1.5 V for program/erase; <0.4 V disables all writes - prevents accidental corruption during power ramp. |
| WP | Hardware Write Protect | Controls Hardlock override: low = permanent sector lock; high = unlockable via software command. |
| RESET | Device Initialization | Active-low reset halts ongoing WSM operations and forces return to read mode on release. |
| VCCQ | Output Power Supply | Separate 1.8–2.2 V or 2.65–3.6 V rail for I/O buffer level-shifting - enables mixed-voltage system interfacing. |
| NC | No Connect | Two pins (TSOP pins 9–10, CBGA positions A1/B1) are unconnected - must be left floating or grounded per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Erase/Program Suspend | Allows reading or programming other sectors/words while erase or program is suspended - enables real-time interrupt handling in firmware update routines. |
| Flexible Sector Protection | Independent Softlock (software-unlockable) and Hardlock (WP-pin-gated) modes per sector - supports secure bootloader + field-upgradable application partitioning. |
| 128-bit Protection Register | Sector A (factory-unique ID) + Sector B (user-programmable/lockable) - enables device authentication and secure key storage in trusted execution environments. |
| Common Flash Interface (CFI) | Standardized query table accessible via 98h command - eliminates hardcoded driver dependencies and simplifies second-source qualification. |
| Hardware Data Protection | VCC sense, VPP monitoring, and control-line gating prevent spurious writes during power-up/down - ensures data integrity across 100k+ cycles. |
| Green Packaging | Pb/halide-free TSOP and CBGA options - complies with RoHS Directive 2011/65/EU for global industrial deployment. |
Applications
| Industrial PLC Firmware Storage | Legacy Telecom Baseband Code |
|---|---|
Use Scenario: Storing boot loader and real-time control firmware in programmable logic controllers operating in harsh temperature environments (−40°C to +85°C). IC Role / Device Role / Timing Role: Non-volatile parallel Flash memory providing deterministic 70 ns read access and sector-erased field updates without system reboot. Use Value: 100,000-cycle endurance and Hardlock protection ensure firmware integrity over 15+ years of unattended operation in factory automation systems. | Use Scenario: Holding DSP firmware and calibration tables in 3G base station transceivers where backward compatibility with older 16-bit bus interfaces is required. IC Role / Device Role / Timing Role: Pin-compatible replacement for obsolete 28Fxxx devices, delivering CFI-enabled auto-configuration and suspend/resume for concurrent diagnostics and code patching. Use Value: Erase Suspend allows live radio parameter reads during background sector reprogramming - maintaining RF link continuity during maintenance windows. |
| Medical Imaging Boot Memory | Avionics Display System Storage |
Use Scenario: Secure boot image storage in FDA-class II diagnostic imaging equipment requiring tamper-resistant firmware validation. IC Role / Device Role / Timing Role: Flash memory with 128-bit protection register (Sector A factory-ID + Sector B locked keys) enabling cryptographic signature verification at power-on. Use Value: Softlock/Hardlock combination prevents unauthorized firmware modification while allowing certified service updates via controlled WP pin assertion. | Use Scenario: Storing display GUI assets and flight-critical configuration data in DO-254-compliant cockpit displays with strict EMI and radiation tolerance requirements. IC Role / Device Role / Timing Role: Radiation-hardened-by-design Flash memory with VCC/VPP sensing and 15 µs erase suspend latency - meeting RTCA/DO-160 Section 22 Level A transient immunity. Use Value: Dual-voltage I/O (VCCQ separation) enables clean 1.8 V graphics processor interfacing while maintaining 3.3 V core logic robustness against power rail noise. |
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 SST's SuperFlash technology with faster 18 µs program time and 18 ms sector erase; no CFI support. | Lacks CFI query mode - requires fixed driver integration; better suited for cost-sensitive consumer electronics than field-serviceable industrial gear. | Select when lower program latency outweighs need for runtime flash characterization and multi-vendor driver portability. |
| MX29LV160ETTI-70G | 16 Mbit, 70 ns, supports CFI and sector protection, but only offers top-boot configuration (vs. AT49BV160C-70TI's top/bottom boot flexibility); 100 k cycle rating same. | Fixed boot-block orientation limits bootloader placement options in legacy x86 BIOS-style systems requiring bottom-boot vectors. | Choose only if board layout already accommodates MXIC's pinout and boot sector alignment constraints. |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160ETTI-70G, the AT49BV160C-70TI uniquely combines CFI compliance, dual boot-block configuration, and hardware-assisted sector locking - making it the preferred choice for long-lifecycle, serviceable embedded systems where firmware security and field upgrade flexibility are mandatory.
Availability
AT49BV160C-70TI is available at Aetrix Electronics and suitable for industrial PLCs, legacy telecom infrastructure, medical imaging devices, avionics displays, and automotive body control modules requiring stable component supply and long-term obsolescence management.
Supply support for AT49BV160C-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 manufacturing continuity for the AT49BV series. The company specializes in high-reliability microcontrollers, analog, and non-volatile memory solutions for industrial, automotive, and aerospace markets.
The AT49BV160C-70TI belongs to Atmel's legacy parallel Flash product line, designed specifically for embedded systems requiring deterministic timing, hardware-based data protection, and long-term firmware retention in environments where serial NOR or NAND cannot meet performance or interface requirements.
FAQ
What is the maximum operating temperature range for the AT49BV160C-70TI?
The AT49BV160C-70TI is rated for industrial temperature operation from −40°C to +85°C. This range is validated per its Absolute Maximum Ratings specification and supports deployment in enclosed control cabinets, outdoor telecom enclosures, and medical equipment without forced cooling. The device maintains full 70 ns access time and reliable sector erase functionality across this entire range.
Does the AT49BV160C-70TI support both top-boot and bottom-boot configurations?
Yes, the AT49BV160C-70TI supports configurable boot-block orientation - either top-boot or bottom-boot - determined by factory option codes. This allows system designers to align the protected boot sector with legacy BIOS or bootloader memory maps without hardware redesign. The configuration is fixed per unit and specified in the ordering part number suffix.
How does the VPP pin function in normal operation of the AT49BV160C-70TI?
In normal operation, the VPP pin on the AT49BV160C-70TI must be held at ≥1.5 V to enable program and erase commands; if VPP drops below 0.4 V, all write operations are inhibited. The pin is not left floating - it is typically tied to VCC or a dedicated 3.3 V rail. VPP status is monitored by the Write State Machine and reported in SR3 of the status register.
Can the AT49BV160C-70TI be used with a 1.8 V I/O interface?
Yes, the AT49BV160C-70TI supports 1.8 V I/O operation via its dedicated VCCQ pin. When VCCQ is regulated to 2.0 V ±10% and VCC is maintained at 2.65–3.0 V, the device delivers full-speed 70 ns access with VOH = VCCQ − 0.1 V. This dual-rail configuration enables seamless interfacing with low-voltage FPGAs and application processors while preserving core logic reliability.
What happens if a program operation is interrupted by a RESET signal on the AT49BV160C-70TI?
If a RESET signal is asserted during an active word program operation on the AT49BV160C-70TI, the data at the target memory location becomes corrupted and unpredictable. The Write State Machine halts immediately, outputs enter high-impedance state, and the device returns to read mode upon RESET release. No automatic rollback or error correction occurs - firmware must verify programmed data post-reset using status register polling.
Is the AT49BV160C-70TI still recommended for new designs?
No, the AT49BV160C-70TI is marked "Not Recommended for New Design" per Microchip's official documentation (3367F–FLASH–4/05). While fully supported for existing production and repair, new designs should evaluate modern alternatives such as the SST26VF016B (quad-SPI) or MX25L1606E (SPI) for improved density, speed, and power efficiency - unless legacy parallel bus compatibility is strictly required.
AT49BV160C-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
AT49BV160C-70TI FAQ
1.How can I place an order for AT49BV160C-70TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV160C-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 AT49BV160C-70TI reliable?
The price and inventory of AT49BV160C-70TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV160C-70TI is usually 5 days.
3.What payment methods are accepted for AT49BV160C-70TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV160C-70TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV160C-70TI?
AT49BV160C-70TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV160C-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 AT49BV160C-70TI?
For technical support, including AT49BV160C-70TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV160C-70TI requirements.
6.How does Aetrix verify that AT49BV160C-70TI is sourced from the original manufacturer or authorized distributors?
All AT49BV160C-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 AT49BV160C-70TI meets industry standards.
7.What is the process for return or replacement of AT49BV160C-70TI?
All AT49BV160C-70TI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV160C-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 AT49BV160C-70TI part is unused and in its original packaging.
Return procedure for AT49BV160C-70TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV160C-70TI Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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