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Microchip Technology AT49BV8192AT-11CI
- Part No.:
- AT49BV8192AT-11CI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-LFBGA, CSPBGA
- Datasheet:
-
AT49BV8192AT-11CI.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48CBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT49BV8192AT-11CI from Atmel is an 8-megabit (512K × 16) single-voltage Flash memory IC with top-boot sector architecture, 110 ns read access time, and 2.7V–3.6V operation. It features hardware data protection, byte/word programming (30 µs typical), and four-sector erase architecture including an 8K-word boot block, two 4K-word parameter blocks, and a 496K-word main array - used in embedded firmware storage for industrial microcontroller systems.
For engineers reviewing the AT49BV8192AT-11CI datasheet, AT49BV8192AT-11CI pinout, AT49BV8192AT-11CI application, or AT49BV8192AT-11CI equivalent, key selection criteria include top-boot configuration, CBGA-48 package compatibility, 110 ns timing grade, industrial temperature range (−40°C to +85°C), and sector-level erase control for secure bootloader updates.
Technical Context
The AT49BV8192AT-11CI implements a standard parallel Flash interface with CE/OE/WE control logic, supporting both byte (I/O₀–I/O₇) and word (I/O₀–I/O₁₅) modes via the BYTE pin. Its internal command register executes chip/sector erase and program operations without external high-voltage support.
It uses Atmel's nonvolatile CMOS process to deliver 10,000 write/erase cycles, 50 µA CMOS standby current, and hardware safeguards including VCC sense, noise filtering (<15 ns pulse rejection), and RESET-driven boot block override (12 V). The top-boot layout places the protected 8K-word boot block at address 7E000H–7FFFFH.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512K × 16 or 1M × 8), enabling full firmware image storage for mid-complexity MCUs |
| Read Access Time | 110 ns max - meets timing budget for 8–10 MHz bus interfaces in industrial controllers |
| Operating Voltage | 2.7V–3.6V - compatible with 3.3V system rails without level-shifting |
| Boot Configuration | Top-boot (7E000H–7FFFFH) - isolates secure startup code from field-updatable application sectors |
| Erase Time | 10 s typical per sector - enables predictable firmware update windows in real-time systems |
| Programming Speed | 30 µs typical per byte/word - supports efficient in-system reprogramming during production or service |
| Endurance | 10,000 write/erase cycles - sufficient for firmware revision management over 5+ year product lifecycles |
| Temperature Range | −40°C to +85°C - qualified for industrial automation, motor drives, and outdoor embedded equipment |
Pinout & Package
AT49BV8192AT-11CI is packaged in a 48-ball Chip-scale Ball Grid Array (CBGA-48, package code 48C1), measuring 7.2 mm × 6.8 mm × 1.25 mm max, with 0.75 mm ball pitch and Pb-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit addressing supports full 512K-word space; A-1 (I/O15 in byte mode) extends byte-mode LSB addressing |
| CE | Chip Enable | Active-low chip select - enables device on shared data bus; must be low for read/write operations |
| OE | Output Enable | Active-low output gate - controls data bus drive; used with CE to prevent contention during reads |
| WE | Write Enable | Active-low write strobe - initiates command latching and internal program/erase sequences |
| BYTE | Mode Select | Logic high = word mode (I/O₀–I/O₁₅ active); logic low = byte mode (I/O₀–I/O₇ active, I/O₁₅ = A-1) |
| I/O₀–I/O₁₅ | Data I/O | Bidirectional data bus - functions as inputs during programming, outputs during read; tri-stated when CE/OE inactive |
| RESET | Reset Control | Active-low reset; 12 V applied here overrides boot block lockout for secure reprogramming |
| VPP | Programming Voltage | No-connect pin - internally generated programming voltage eliminates need for external 12 V supply |
| GND / VCC | Power | Dual GND balls (pins B1, E8); single VCC ball (D7) - decoupling required within 10 mm of VCC/GND pair |
Key Features
| Feature | Design Value |
|---|---|
| Top-boot sector architecture | Boot block located at highest addresses (7E000H–7FFFFH), simplifying linker script placement and bootloader validation |
| Hardware boot block lockout | Enables permanent write protection of boot code using command sequence; override possible only with 12 V on RESET |
| Data polling & toggle bit | I/O₇ complement and I/O₆ toggling provide real-time, software-visible status of program/erase completion without polling delays |
| Four independent erase sectors | Separate 8K-word boot block, two 4K-word parameter blocks, and 496K-word main array allow granular firmware updates |
| Single-supply 2.7–3.6 V operation | Eliminates need for dual-voltage regulators or charge pumps - reduces BOM cost and PCB area in 3.3 V systems |
| Industrial-grade reliability | 10,000 endurance cycles and −40°C to +85°C qualification ensure long-term stability in harsh environments |
Applications
| Industrial PLC Firmware Storage | Medical Device Bootloader |
|---|---|
|
Use Scenario: Storing certified bootloader and application firmware in programmable logic controllers deployed in factory-floor environments with wide temperature swings and EMI exposure. IC Role / Device Role / Timing Role: Nonvolatile firmware storage with top-boot protection - holds immutable startup code while allowing field-upgradable application binaries. Use Value: Prevents accidental corruption of boot code during remote firmware updates; 110 ns access ensures deterministic boot timing under real-time constraints. |
Use Scenario: Securing FDA-cleared bootloader in portable diagnostic equipment requiring traceable, tamper-resistant firmware execution. IC Role / Device Role / Timing Role: Trusted boot memory with hardware-enforced write protection - stores cryptographic keys and signature verification routines in top-boot sector. Use Value: Enables regulatory compliance via immutable boot path; 12 V RESET override allows authorized service reprogramming without board removal. |
| Automotive Body Control Module | Network Edge Router Configuration |
|
Use Scenario: Holding calibrated sensor parameters and CAN protocol stacks in automotive BCMs operating across −40°C to +85°C ambient conditions. IC Role / Device Role / Timing Role: Parameter and application memory with sector-erase granularity - isolates calibration data (parameter blocks) from firmware (main array). Use Value: Allows independent field updates of calibration tables without risking bootloader integrity; 50 µA standby current extends battery life in sleep modes. |
Use Scenario: Storing boot images, configuration profiles, and failover firmware in carrier-grade edge routers requiring zero-downtime upgrades. IC Role / Device Role / Timing Role: Dual-mode (byte/word) Flash memory - supports legacy 8-bit bus interfaces and modern 16-bit data paths via BYTE pin control. Use Value: Reduces design risk across multiple platform generations; 10,000-cycle endurance supports frequent configuration revisions over multi-year deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF800A-70-4C-EKE | 8 Mbit, 70 ns access, 3.0–3.6 V, PLCC-32 package - no top-boot option; boot block fixed at bottom | Lacks top-boot flexibility; requires PCB redesign for boot code relocation; suitable only where bottom-boot is acceptable | Select if faster 70 ns timing is critical and boot block position is not constrained by existing firmware layout |
| MX29LV800CTTC-90G | 8 Mbit, 90 ns access, 3.0–3.6 V, TSOP-48 - top-boot variant available (T suffix), but no CBGA package option | Requires TSOP footprint change; lacks CBGA thermal/mechanical advantages for high-vibration environments | Choose when board space permits TSOP and 90 ns timing is needed, but avoid if CBGA mounting or industrial shock resistance is required |
Compared with SST39VF800A-70-4C-EKE and MX29LV800CTTC-90G, the AT49BV8192AT-11CI uniquely combines top-boot configuration, CBGA-48 packaging, and 110 ns industrial-grade timing - making it optimal for space-constrained, high-reliability embedded systems where boot code location and mechanical robustness are design-critical.
Availability
AT49BV8192AT-11CI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device bootloader implementation, automotive body control modules, and network edge router configuration requiring stable component supply across extended product lifecycles.
Supply support for AT49BV8192AT-11CI 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, Flash memory, and secure authentication devices for industrial, automotive, and IoT applications.
The AT49BV8192AT-11CI belongs to Atmel's BV-series parallel Flash memory product line, designed specifically for reliable, in-system programmable firmware and configuration storage in resource-constrained embedded systems operating under industrial environmental stress.
FAQ
What does the "AT" suffix in AT49BV8192AT-11CI indicate?
The "AT" suffix in AT49BV8192AT-11CI denotes the top-boot configuration - meaning the 8K-word boot block resides at the highest address range (7E000H–7FFFFH), unlike the "A" variant which places it at the lowest addresses. This layout is essential for systems where bootloader code must be physically isolated from updatable application sectors, and is confirmed in Atmel's ordering information and block diagrams.
Is AT49BV8192AT-11CI pin-compatible with AT49BV8192A-11CI?
No - AT49BV8192AT-11CI and AT49BV8192A-11CI share identical pin functions and CBGA-48 packaging, but differ in boot block location (top vs. bottom), which affects address mapping and firmware partitioning. Hardware pinout is identical, but software initialization and linker scripts must be revised to accommodate the 7E000H–7FFFFH boot region in AT49BV8192AT-11CI.
Does AT49BV8192AT-11CI require an external VPP voltage for programming?
No - AT49BV8192AT-11CI uses internal charge pump circuitry; the VPP pin is a no-connect and may be left unconnected or tied to VCC, GND, 5 V, or 12 V without affecting operation. All programming and erase functions execute using only the 2.7–3.6 V VCC supply, as specified in the DC characteristics and pin description sections of the datasheet.
How is boot block protection enabled and verified on AT49BV8192AT-11CI?
Boot block protection on AT49BV8192AT-11CI is enabled via a six-cycle command sequence (5555H/AAH → 2AAAH/55H → 5555H/80H → 5555H/AAH → 2AAAH/55H → 5555H/40H). Verification is performed in software product identification mode by reading address 7E002H: a high level on I/O₀ confirms lockout is active, preventing writes to the 7E000H–7FFFFH region under ≤5.5 V conditions.
What package type and dimensions does AT49BV8192AT-11CI use?
AT49BV8192AT-11CI uses a 48-ball Chip-scale Ball Grid Array (CBGA-48, package code 48C1), with overall dimensions of 7.2 mm × 6.8 mm × 1.25 mm max and 0.75 mm ball pitch. This compact, thermally efficient package is optimized for high-density industrial PCBs and meets JEDEC MO-142 standards, as documented in the Packaging Information section.
AT49BV8192AT-11CI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 48-LFBGA, CSPBGA
- 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-CBGA (7x7)
AT49BV8192AT-11CI FAQ
1.How can I place an order for AT49BV8192AT-11CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV8192AT-11CI 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-11CI reliable?
The price and inventory of AT49BV8192AT-11CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV8192AT-11CI is usually 5 days.
3.What payment methods are accepted for AT49BV8192AT-11CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV8192AT-11CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV8192AT-11CI?
AT49BV8192AT-11CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV8192AT-11CI 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-11CI?
For technical support, including AT49BV8192AT-11CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV8192AT-11CI requirements.
6.How does Aetrix verify that AT49BV8192AT-11CI is sourced from the original manufacturer or authorized distributors?
All AT49BV8192AT-11CI 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-11CI meets industry standards.
7.What is the process for return or replacement of AT49BV8192AT-11CI?
All AT49BV8192AT-11CI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV8192AT-11CI, 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-11CI part is unused and in its original packaging.
Return procedure for AT49BV8192AT-11CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV8192AT-11CI Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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