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Microchip Technology AT49BV8192AT-11TI
- Part No.:
- AT49BV8192AT-11TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV8192AT-11TI.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,956
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Product details
Overview
AT49BV8192AT-11TI from Atmel is an 8-megabit (512K × 16) single-voltage Flash memory IC with top-boot sector architecture, 110 ns read access time, 2.7–3.6 V operation, and integrated hardware data protection. It supports byte/word programming (30 µs typical), sector erase (10 s max), and boot block lockout for secure firmware storage in embedded control systems.
For engineers reviewing the AT49BV8192AT-11TI datasheet, AT49BV8192AT-11TI pinout, AT49BV8192AT-11TI application, or AT49BV8192AT-11TI equivalent, this page delivers verified technical context, real-world use cases, validated alternatives, and supply-chain support for industrial-grade reprogrammable nonvolatile memory selection.
Technical Context
The AT49BV8192AT-11TI implements a four-sector Flash architecture: one 8K-word top-boot block (7E000H–7FFFFH), two 4K-word parameter blocks, and one 496K-word main memory array. Sector erase and byte/word programming are executed via six-cycle command sequences using address latching on WE/CE falling edges and data latching on rising edges.
It features dual-mode I/O configuration controlled by the BYTE pin: logic high or open enables 16-bit word mode (I/O0–I/O15 active); logic low enables 8-bit byte mode (I/O0–I/O7 active, I/O15 repurposed as A−1). Ready/Busy status is not supported-end-of-operation detection relies on Data Polling (I/O7 complement) and Toggle Bit (I/O6 toggling).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16 or 1M × 8), enabling compact firmware storage without external multiplexing |
| Read Access Time | 110 ns max - meets timing requirements for 8–9 MHz bus interfaces in industrial microcontrollers |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V system rails and eliminates need for voltage translators |
| Active Current | 25 mA typical - supports low-power operation during firmware reads in battery-backed systems |
| Standby Current | 50 µA CMOS - enables ultra-low quiescent power in always-on embedded controllers |
| Erase Endurance | 10,000 program/erase cycles - sufficient for field firmware updates over 5+ years of industrial deployment |
| Boot Block Location | Top-boot (7E000H–7FFFFH) - isolates bootloader code from main application updates to prevent corruption |
Pinout & Package
AT49BV8192AT-11TI is packaged in a 48-lead TSOP (Type 1, 48T) with 12.0 mm × 20.0 mm footprint and standard JEDEC MO-142 D outline. Pin functions are electrically identical across TSOP variants; CBGA (48C1) and SOIC versions share same logic but differ in physical layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit addressing supports full 512K-word space; A−1 appears on I/O15 only in byte mode |
| CE | Chip Enable | Active-low chip select - must be low with OE low and WE high for valid read access |
| OE | Output Enable | Active-low output gate - controls data bus drive; high disables outputs to prevent contention |
| WE | Write Enable | Active-low write strobe - initiates command latching and internal program/erase cycles |
| BYTE | Bus Width Select | Logic high = 16-bit word mode (I/O0–I/O15); logic low = 8-bit byte mode (I/O0–I/O7 + A−1 on I/O15) |
| I/O0–I/O15 | Data I/O Bidirectional | Tri-state drivers with 2.4 V VOH / 0.45 V VOL - interface directly with 3.3 V microcontroller buses |
| RESET | Reset Input | Active-low reset; 12 V pulse overrides boot block lockout - used only for emergency reprogramming |
| VPP | Programming Voltage | No-connect pin - internally generated programming voltage eliminates external high-voltage circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Top-boot sector architecture | Boot block at highest addresses (7E000H–7FFFFH) ensures bootloader integrity during partial rewrites of application code |
| Hardware data protection | VCC sense, 10 ms power-on delay, noise filtering (<15 ns), and control-line inhibition prevent accidental writes |
| Data Polling & Toggle Bit | I/O7 complement and I/O6 toggling provide software-controlled, cycle-accurate program/erase completion detection |
| Single 3.3 V supply operation | Eliminates need for 5 V or 12 V programming supplies - simplifies PCB design and reduces BOM count |
| 10,000 write/erase cycles | Validated endurance for repeated field firmware updates in industrial HMI, PLC, and motor control applications |
Applications
| Industrial PLC Firmware Storage | Medical Device Bootloader Memory |
|---|---|
|
Use Scenario: Storing and updating firmware for programmable logic controllers operating in harsh factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile code storage with top-boot protection - holds bootloader and allows safe in-system update of application firmware. Use Value: Prevents bricking during power loss mid-update; 110 ns access supports real-time scan cycle execution without wait states. |
Use Scenario: Securing certified bootloader code in FDA-regulated diagnostic equipment requiring traceable, tamper-resistant firmware. IC Role / Device Role / Timing Role: Trusted boot memory with hardware-enforced write lockout - ensures bootloader remains unaltered between regulatory audits. Use Value: 12 V RESET override enables authorized recovery without hardware rework; 50 µA standby current extends battery backup runtime. |
| Automotive Body Control Module | Network Router Configuration Storage |
|
Use Scenario: Holding calibration data and feature-enable bits in automotive BCMs subjected to -40°C to +85°C thermal cycling. IC Role / Device Role / Timing Role: Parameter block storage - two 4K-word sections retain vehicle-specific settings across ECU reflashes. Use Value: Sector-level erase isolates parameter updates from main firmware; 2.7–3.6 V range matches automotive 3.3 V rail tolerances. |
Use Scenario: Persisting configuration tables and routing rules in enterprise edge routers requiring zero-downtime firmware patches. IC Role / Device Role / Timing Role: Main memory array (496K words) - stores dynamic configuration images updated via TFTP without interrupting packet forwarding. Use Value: 10-second sector erase enables sub-second config reloads; CE/OE dual-control prevents bus contention during concurrent CPU/DMA access. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF800A-90-4C-EKE | 8 Mbit (512K × 16), 90 ns access, 3.0–3.6 V, bottom-boot, no BYTE pin - fixed 16-bit interface | Lacks top-boot flexibility and byte-mode support; requires redesign if boot block location or bus width must match AT49BV8192AT-11TI | Select when bottom-boot alignment suffices and board layout cannot accommodate BYTE pin routing |
| MX29LV800CTTC-90G | 8 Mbit (512K × 16), 90 ns, 3.0–3.6 V, top-boot, supports CFI query - no VPP pin, different command set | CFI compliance simplifies driver portability; lacks RESET-based boot lock override - limits recovery options in locked systems | Prefer for new designs requiring standardized flash interface abstraction layers and broader toolchain support |
Compared with SST39VF800A-90-4C-EKE and MX29LV800CTTC-90G, the AT49BV8192AT-11TI uniquely combines top-boot architecture, BYTE-selectable bus width, and 12 V RESET override - making it optimal for legacy-compatible industrial upgrades where bootloader location and field-recovery capability are critical.
Availability
AT49BV8192AT-11TI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device bootloader memory, automotive body control modules, and network router configuration storage requiring stable component supply across extended product lifecycles.
Supply support for AT49BV8192AT-11TI 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
Atmel Corporation (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and security ICs for industrial, automotive, and consumer applications.
The AT49BV8192AT-11TI belongs to Atmel's BV-series Flash memory product line, designed specifically for reliable, in-system reprogrammable code and data storage in temperature-stressed embedded systems.
FAQ
What is the boot block address range for AT49BV8192AT-11TI?
The AT49BV8192AT-11TI uses top-boot architecture with the boot block located at address range 7E000H to 7FFFFH (32 KB). This placement isolates bootloader code from application updates and is confirmed in the device's block diagram and command definition tables. The AT49BV8192AT-11TI differs from bottom-boot variants like AT49BV8192A, which locate the boot block at 00000H–01FFFH.
Does AT49BV8192AT-11TI support Ready/Busy output?
No, the AT49BV8192AT-11TI does not include a dedicated RDY/BUSY pin. Unlike the AT49BV008A(T) series (which uses pin 12 for this function), the AT49BV8192AT-11TI relies solely on Data Polling (I/O7 complement) and Toggle Bit (I/O6 toggling) for end-of-operation detection. This is explicitly stated in the "Device Operation" section and confirmed by absence of RDY/BUSY in all AT49BV8192A(T) pin configurations.
What package type is used for AT49BV8192AT-11TI?
The AT49BV8192AT-11TI is supplied in a 48-lead Plastic Thin Small Outline Package (TSOP), designated as 48T per Atmel's ordering information table. Its dimensions are 12.0 mm × 20.0 mm with JEDEC MO-142 D outline. This differs from the 48-ball CBGA (48C1) variant used in AT49BV8192AT-11CI, confirming package-specific ordering codes.
How is byte vs. word mode selected on AT49BV8192AT-11TI?
Byte or word mode on the AT49BV8192AT-11TI is selected via the BYTE pin: logic high (or left open) enables 16-bit word mode (I/O0–I/O15 active); logic low enables 8-bit byte mode (I/O0–I/O7 active, I/O15 repurposed as LSB address input A−1). This behavior is defined in the "Device Operation" section and illustrated in the TSOP pinout diagrams for AT49BV8192A(T).
What is the maximum erase time for AT49BV8192AT-11TI?
The maximum erase time for the AT49BV8192AT-11TI is 10 seconds per sector, as specified in the "Features" list and confirmed in the "ERASURE" section under "SECTOR ERASE". Chip erase time is not explicitly capped but follows the same internal timing mechanism; the datasheet states "tEC" as the maximum chip erase time without giving a numeric value, so only the verified 10 s sector erase figure is cited for AT49BV8192AT-11TI.
AT49BV8192AT-11TI 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:
- 8Mbit
- Memory Organization:
- 1M x 8, 512K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 30µs
- Access Time:
- 110 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
AT49BV8192AT-11TI FAQ
1.How can I place an order for AT49BV8192AT-11TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV8192AT-11TI 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 AT49BV8192AT-11TI reliable?
The price and inventory of AT49BV8192AT-11TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV8192AT-11TI is usually 5 days.
3.What payment methods are accepted for AT49BV8192AT-11TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV8192AT-11TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV8192AT-11TI?
AT49BV8192AT-11TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV8192AT-11TI 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 AT49BV8192AT-11TI?
For technical support, including AT49BV8192AT-11TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV8192AT-11TI requirements.
6.How does Aetrix verify that AT49BV8192AT-11TI is sourced from the original manufacturer or authorized distributors?
All AT49BV8192AT-11TI 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 AT49BV8192AT-11TI meets industry standards.
7.What is the process for return or replacement of AT49BV8192AT-11TI?
All AT49BV8192AT-11TI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV8192AT-11TI, 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 AT49BV8192AT-11TI part is unused and in its original packaging.
Return procedure for AT49BV8192AT-11TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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