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Microchip Technology AT49BV163AT-70TI
- Part No.:
- AT49BV163AT-70TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV163AT-70TI.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,003
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Product details
Overview
AT49BV163AT-70TI from Microchip Technology (formerly Atmel) is a 16-Mbit (1M × 16 / 2M × 8) single-supply 3.3V Flash memory IC with sector erase architecture, 55 ns read access time, and suspend/resume capability for in-system programming. It supports byte/word configuration via the BYTE pin, features CFI compliance, and targets embedded boot code storage and firmware update applications.
For engineers reviewing the AT49BV163AT-70TI datasheet, AT49BV163AT-70TI pinout, AT49BV163AT-70TI application, or AT49BV163AT-70TI equivalent, key selection criteria include sector lockdown support, RDY/BUSY and toggle-bit status signaling, TSOP/CBGA package compatibility, and VPP-independent operation (VPP pin omitted).
Technical Context
This device implements a command-based Flash architecture with dual-mode data bus (x8/x16), CE/OE/WE control logic to prevent bus contention, and an internal write state machine that auto-generates program/erase pulses. Its 39-sector layout includes thirty-one 64KB and eight 8KB sectors, each individually lockable.
Erase and program operations are interruptible via Erase Suspend and Program Suspend commands (1-bus-cycle), enabling concurrent read access to non-suspending sectors. Status detection uses three independent methods: RDY/BUSY open-drain output, I/O6 toggle bit, and I/O7 data polling - all configurable via a user-settable status register.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit or 2,097,152 × 8-bit organization) |
| Read Access Time | 55 ns - determines maximum sustained read throughput in high-speed microcontroller interfaces |
| Supply Voltage | 2.65V–3.6V - enables direct connection to 3.3V logic without level-shifting |
| Program Time | 12 µs per word - defines minimum write latency for firmware patching or parameter updates |
| Sector Erase Time | 300 ms max per sector - impacts field-upgrade duration and system responsiveness during reprogramming |
| Erase Endurance | ≥100,000 cycles - ensures long-term reliability in frequently updated embedded storage |
| Standby Current | 13 µA - supports ultra-low-power retention in battery-backed systems |
Pinout & Package
AT49BV163AT-70TI is available in 48-lead TSOP (Type 1) and 48-ball CBGA packages. Unlike AT49BV162A(T), it omits the VPP pin - eliminating external voltage supervision circuitry and simplifying board design for 3.3V-only systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus supporting full 1M-word addressing; A-1 function on I/O15 in byte mode |
| I/O0–I/O14 | Data I/O (x16) | Bi-directional data bus; I/O8–I/O14 tri-stated in byte mode |
| I/O15 / A-1 | Mode-Dependent Pin | In word mode: data bit 15; in byte mode: LSB address input (A-1) |
| BYTE | Bus Width Select | Logic high = x16 mode (I/O0–I/O15 active); low = x8 mode (I/O0–I/O7 active) |
| CE, OE, WE | Chip/Output/Write Enable | Dual-line control (CE+OE) prevents bus contention; WE initiates command latching |
| RDY/BUSY | Status Output | Open-drain signal pulled low during program/erase; supports wired-OR multi-device monitoring |
| RESET | Initialization Input | Active-low reset halts ongoing operations and forces high-impedance outputs |
| NC | No Connect | Two NC pins in TSOP/CBGA layouts - must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Sector Lockdown | Per-sector write protection enables secure boot code storage while allowing runtime firmware updates in other sectors |
| Erase/Program Suspend | Interruptible operations allow real-time read access to non-suspending sectors - critical for responsive HMI or safety-critical logging |
| Common Flash Interface (CFI) | Standardized query table enables automatic driver configuration and second-source compatibility in BSPs |
| 128-bit Protection Register | Factory-programmed Block A + user-lockable Block B provide hardware-enforced security for licensing or calibration data |
| Hardware Data Protection | VCC sense, power-on delays, and control-line inhibit logic prevent spurious writes during power ramp or noise events |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code Retention |
|---|---|
Use Scenario: Storing bootloader and diagnostic firmware in programmable logic controllers operating in harsh EMI environments. IC Role / Device Role / Timing Role: Non-volatile boot memory with sector lockdown protecting factory firmware while permitting field-upgradable application modules. Use Value: 100,000 erase cycles and 55 ns read speed ensure long service life and deterministic boot timing under temperature cycling. | Use Scenario: Securing FDA-compliant boot code and calibration tables in portable ultrasound units with battery backup. IC Role / Device Role / Timing Role: Trusted execution root-of-trust element using 128-bit protection register and CFI-verified interface integrity. Use Value: 13 µA standby current extends battery runtime; RDY/BUSY signaling enables fail-safe firmware validation before system initialization. |
| Automotive Infotainment Update Partition | Networking Equipment Configuration Storage |
Use Scenario: Isolating OTA update partitions from immutable boot firmware in telematics control units. IC Role / Device Role / Timing Role: Dual-mode (x8/x16) Flash memory supporting fast parallel writes during download and byte-level reads during verification. Use Value: Sector erase suspend allows simultaneous UI rendering (reading active partition) while background updating inactive partition. | Use Scenario: Storing switch/router configuration profiles and MAC address tables requiring rapid read-modify-write cycles. IC Role / Device Role / Timing Role: High-reliability configuration store with toggle-bit status feedback for deterministic write completion detection. Use Value: 12 µs word program time and CFI support enable seamless integration with Linux MTD subsystems and U-Boot environment variables. |
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 lacks CFI and sector lockdown; uses different command set | Requires custom driver adaptation; no hardware-secured boot partition capability | Select when cost sensitivity outweighs security and standardization needs |
| MX29LV160DBTI-70G | 16 Mbit, 70 ns, supports CFI and top/bottom boot blocks, but no program suspend/resume feature | Compatible with existing CFI-aware BIOS/bootloaders, but cannot interleave reads during erase | Choose for drop-in replacement where suspend functionality is unused |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160DBTI-70G, AT49BV163AT-70TI uniquely combines CFI compliance, sector lockdown, and full suspend/resume - making it optimal for safety-certifiable or field-upgradable embedded systems requiring both flexibility and security.
Availability
AT49BV163AT-70TI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code retention, and automotive infotainment update partitioning requiring stable component supply across extended product lifecycles.
Supply support for AT49BV163AT-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 legacy Flash product lines with full documentation and long-term support commitments.
The AT49BV163AT-70TI belongs to Atmel's legacy parallel Flash family, designed specifically for reliable in-system programmability in resource-constrained embedded systems requiring deterministic timing and hardware-enforced data integrity.
FAQ
What is the VPP pin configuration for AT49BV163AT-70TI?
The AT49BV163AT-70TI does not include a VPP pin - unlike the AT49BV162A(T) variant. This eliminates the need for external 12V programming voltage generation and simplifies PCB layout for 3.3V-only systems. All program and erase operations execute using the core 2.65V–3.6V supply, with hardware data protection enforced via VCC sensing and control-line inhibit logic. This design choice makes AT49BV163AT-70TI ideal for cost-sensitive and space-constrained applications where VPP circuitry adds unnecessary complexity.
Does AT49BV163AT-70TI support both x8 and x16 data bus configurations?
Yes, AT49BV163AT-70TI supports both configurations via the BYTE pin. When BYTE = HIGH, the device operates in 16-bit mode with I/O0–I/O15 active; when BYTE = LOW, it operates in 8-bit mode with only I/O0–I/O7 active and I/O15 repurposed as A-1 (LSB address). This dual-mode capability allows flexible integration with 8-bit microcontrollers or 16-bit DSPs without redesigning the memory interface. The AT49BV163AT-70TI datasheet confirms identical timing and command behavior across both modes.
How many sectors does AT49BV163AT-70TI have, and what are their sizes?
AT49BV163AT-70TI contains 39 erasable sectors: thirty-one 64KB sectors (32K words × 16 bits) and eight 8KB sectors (4K words × 16 bits). This architecture enables granular firmware updates - for example, preserving boot code in protected 8KB sectors while reprogramming larger application partitions. Each sector supports individual lockdown, and the AT49BV163AT-70TI datasheet specifies sector addresses SA0–SA38 with precise boundaries defined in the "Sector Address Map" section.
What status indication methods does AT49BV163AT-70TI provide for program/erase completion?
AT49BV163AT-70TI provides three independent status methods: (1) RDY/BUSY open-drain output (pulled low during operations), (2) I/O6 toggle bit (toggles until completion), and (3) I/O7 data polling (returns complemented data during programming). These can be used individually or in combination per the algorithms in the AT49BV163AT-70TI datasheet. The status register configuration (00 or 01) determines I/O7 behavior - defaulting to "00" after power-up - and affects whether Product ID Exit is required post-operation.
Is AT49BV163AT-70TI compatible with Common Flash Interface (CFI) hosts?
Yes, AT49BV163AT-70TI fully supports CFI. Entering CFI Query mode (write 98h to address 55h) allows host software to read standardized parameter tables at fixed offsets, enabling automatic driver configuration for geometry, timing, and command sets. This ensures interoperability with generic Flash file systems and simplifies migration between vendors. The AT49BV163AT-70TI CFI implementation is validated per JEDEC JESD68-A and matches the published CFI signature for this density and voltage class.
AT49BV163AT-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:
- 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 ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
AT49BV163AT-70TI FAQ
1.How can I place an order for AT49BV163AT-70TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV163AT-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 AT49BV163AT-70TI reliable?
The price and inventory of AT49BV163AT-70TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV163AT-70TI is usually 5 days.
3.What payment methods are accepted for AT49BV163AT-70TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV163AT-70TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV163AT-70TI?
AT49BV163AT-70TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV163AT-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 AT49BV163AT-70TI?
For technical support, including AT49BV163AT-70TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV163AT-70TI requirements.
6.How does Aetrix verify that AT49BV163AT-70TI is sourced from the original manufacturer or authorized distributors?
All AT49BV163AT-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 AT49BV163AT-70TI meets industry standards.
7.What is the process for return or replacement of AT49BV163AT-70TI?
All AT49BV163AT-70TI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV163AT-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 AT49BV163AT-70TI part is unused and in its original packaging.
Return procedure for AT49BV163AT-70TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV163AT-70TI Tags
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