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Microchip Technology AT49BV8192A-11CI

Name: AT49BV8192A-11CI
Brand: Microchip Technology
SKU: AT49BV8192A-11CI
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AT49BV8192A-11CI

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 48-LFBGA, CSPBGA

Datasheet:: AT49BV8192A-11CI.pdf

Description:: IC FLASH 8MBIT PARALLEL 48CBGA

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Product details

Overview

AT49BV8192A-11CI from Atmel is an 8-megabit (512K × 16 or 1M × 8) single-voltage Flash memory IC with 110 ns read access time, organized in four erase sectors (8K-word boot block, two 4K-word parameter blocks, and 496K-word main array), and supporting byte/word programming at 30 µs typical. It operates from 2.7V to 3.6V and delivers 25 mA active current and 50 µA CMOS standby current for embedded firmware storage in industrial microcontroller systems.

For engineers reviewing the AT49BV8192A-11CI datasheet, AT49BV8192A-11CI pinout, AT49BV8192A-11CI application, or AT49BV8192A-11CI equivalent, this page provides verified sector architecture details, BYTE-mode configuration behavior, boot-block lockout mechanics, hardware data protection logic, and CBGA-48 package terminal mapping - all confirmed from Atmel's official Rev. 1049I–03/01 documentation.

Technical Context

The AT49BV8192A-11CI implements a command-register-based Flash architecture with internal erase/program control, eliminating need for external high-voltage programming supplies. Its sector-erase capability supports selective reprogramming of the boot block (00000H–01FFFH), two parameter blocks (02000H–02FFFH and 03000H–03FFFH), and main memory (04000H–7FFFFH).

Operation relies on standard microprocessor timing with CE/OE/WE control lines and includes RDY/BUSY status via open-drain output (not present on CBGA variant per pinout), Data Polling (I/O7 complement), and Toggle Bit (I/O6) for cycle completion detection. The BYTE pin selects between 16-bit word mode (I/O0–I/O15 active) and 8-bit byte mode (I/O0–I/O7 active, I/O15 repurposed as A−1).

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	8 Mbit (512K × 16 or 1M × 8) - supports dual-width interface for flexible MCU bus alignment.
Read Access Time	110 ns max - meets timing budget for 8–10 MHz synchronous bus interfaces in industrial controllers.
Supply Voltage	2.7V to 3.6V - compatible with 3.3V system rails without level-shifting.
Erase Time	10 seconds typical per sector - enables field-upgradable firmware partitions without full chip erase.
Programming Time	30 µs typical per byte/word - allows efficient patching of configuration or calibration data.
Endurance	10,000 write/erase cycles - sufficient for infrequent firmware updates over 10+ year product life.
Standby Current	50 µA CMOS - enables low-power sleep modes in battery-backed or energy-constrained systems.

Pinout & Package

AT49BV8192A-11CI is packaged in a 48-ball Chip-scale Ball Grid Array (CBGA), footprint-compatible with JEDEC MO-142 D outline, measuring 7.2 mm × 6.8 mm × 1.25 mm max height. Ball pitch is 0.75 mm, with solder balls arranged in 6×8 grid (A1–F8).

Pin/Terminal	Circuit Role	Design Meaning
A0–A18	Address Inputs	19-bit address bus supporting full 512K-word addressing; A−1 function multiplexed on I/O15 in byte mode.
BYTE	Mode Select Input	Logic high or open = 16-bit word mode (I/O0–I/O15 active); logic low = 8-bit byte mode (I/O0–I/O7 active, I/O15 = A−1).
CE	Chip Enable	Active-low chip select; must be low with OE low and WE high for valid read access - prevents bus contention.
OE	Output Enable	Active-low output gate; controls data bus drive only when CE is also low - enables shared-bus arbitration.
WE	Write Enable	Active-low write strobe; latches command sequences and initiates internal program/erase cycles.
I/O0–I/O15	Data I/O Bidirectional	16-bit data bus in word mode; in byte mode, I/O0–I/O7 used for data, I/O8–I/O14 tri-stated, I/O15 becomes LSB address input.
RESET	Reset Input	Active-low reset; halts ongoing operations and forces high-impedance outputs; 12V pulse overrides boot-block lockout.
VPP	Programming Voltage	No-connect pin - internally unused; may be tied to VCC, GND, or left floating without functional impact.
GND / VCC	Power Terminals	Two GND balls (A6, E8) and one VCC ball (D7); decoupling required within 10 mm for stable 2.7–3.6V operation.

Key Features

Feature	Design Value
Boot Block Programming Lockout	Hardware-enforced write protection for 8K-word boot sector (00000H–01FFFH); enabled via 6-cycle command sequence and overridden only by 12V RESET pulse.
Sector-Erase Architecture	Four independent erase blocks - enables secure firmware partitioning: boot code, calibration parameters, user config, and application image - without erasing entire device.
Data Polling & Toggle Bit	Dual software-controlled status mechanisms (I/O7 complement and I/O6 toggling) eliminate need for external wait-state generators or polling delays.
Hardware Data Protection	VCC sense (<1.8V inhibit), 10 ms power-on delay, noise filtering (<15 ns pulse rejection), and control-line interlock prevent accidental writes during power transients or noise events.
Input Voltage Tolerance	Address and control inputs (A0–A18, CE/OE/WE) tolerate 0–5.5V logic levels while operating at 2.7–3.6V VCC - simplifies interfacing with 5V-tolerant MCUs.

Applications

Industrial PLC Firmware Storage	Medical Device Boot Code Retention
Use Scenario: Storing immutable bootloader and safety-critical startup routines in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile boot memory providing deterministic 110 ns read access to initialization code during cold start and watchdog recovery. Use Value: Boot block lockout ensures firmware integrity across 10,000+ field updates; sector erase isolates parameter updates from core runtime code.	Use Scenario: Holding certified boot firmware and regulatory-compliant diagnostic routines in Class II medical instruments requiring traceable, tamper-resistant storage. IC Role / Device Role / Timing Role: Secure Flash memory with hardware write protection, enabling FDA-aligned change control for critical startup sequences. Use Value: 12V RESET override allows authorized reprogramming under audit-controlled conditions; 50 µA standby current supports battery backup compliance.
Telecom Base Station Configuration	Automotive Body Control Module (BCM)
Use Scenario: Storing field-upgradable RF calibration tables and protocol stack parameters in outdoor telecom infrastructure operating across −40°C to +85°C. IC Role / Device Role / Timing Role: Industrial-grade Flash memory delivering stable 110 ns access under thermal cycling and voltage ripple. Use Value: Dual-parameter-block architecture permits A/B versioning of calibration data; 2.7–3.6V operation aligns with telecom DC-DC converter outputs.	Use Scenario: Hosting vehicle-specific configuration data (e.g., door module settings, lighting profiles) in automotive BCMs subject to ISO 16750 electrical stress testing. IC Role / Device Role / Timing Role: Automotive-qualified Flash memory with hardware noise immunity and 10,000-cycle endurance for lifetime recalibration events. Use Value: Hardware data protection (VCC sense, noise filter) prevents corruption during load-dump transients; CBGA package withstands mechanical shock.

Industrial PLC Firmware Storage

Medical Device Boot Code Retention

Use Scenario: Storing immutable bootloader and safety-critical startup routines in programmable logic controllers deployed in factory automation environments.

IC Role / Device Role / Timing Role: Nonvolatile boot memory providing deterministic 110 ns read access to initialization code during cold start and watchdog recovery.

Use Value: Boot block lockout ensures firmware integrity across 10,000+ field updates; sector erase isolates parameter updates from core runtime code.

Use Scenario: Holding certified boot firmware and regulatory-compliant diagnostic routines in Class II medical instruments requiring traceable, tamper-resistant storage.

IC Role / Device Role / Timing Role: Secure Flash memory with hardware write protection, enabling FDA-aligned change control for critical startup sequences.

Use Value: 12V RESET override allows authorized reprogramming under audit-controlled conditions; 50 µA standby current supports battery backup compliance.

Telecom Base Station Configuration

Automotive Body Control Module (BCM)

Use Scenario: Storing field-upgradable RF calibration tables and protocol stack parameters in outdoor telecom infrastructure operating across −40°C to +85°C.

IC Role / Device Role / Timing Role: Industrial-grade Flash memory delivering stable 110 ns access under thermal cycling and voltage ripple.

Use Value: Dual-parameter-block architecture permits A/B versioning of calibration data; 2.7–3.6V operation aligns with telecom DC-DC converter outputs.

Use Scenario: Hosting vehicle-specific configuration data (e.g., door module settings, lighting profiles) in automotive BCMs subject to ISO 16750 electrical stress testing.

IC Role / Device Role / Timing Role: Automotive-qualified Flash memory with hardware noise immunity and 10,000-cycle endurance for lifetime recalibration events.

Use Value: Hardware data protection (VCC sense, noise filter) prevents corruption during load-dump transients; CBGA package withstands mechanical shock.

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, 3.0–3.6V supply, PLCC-32 package; lacks boot-block lockout and BYTE-mode flexibility.	Requires PCB redesign for PLCC vs. CBGA; no hardware-protected boot sector - mandates software-level integrity checks.	Select when faster read speed is prioritized over field-safe firmware partitioning and compact packaging.
MX29LV800CTTC-90G	8 Mbit, 90 ns access, 3.0–3.6V, TSOP-48; top-boot configuration only; no BYTE pin - fixed 16-bit interface.	Top-boot layout incompatible with AT49BV8192A-11CI's bottom-boot address map (00000H–01FFFH); requires firmware relocation.	Select only if board layout already uses TSOP-48 and boot code resides at highest address range (7E000H–7FFFFH).

Compared with SST39VF800A-70-4C-EKE and MX29LV800CTTC-90G, the AT49BV8192A-11CI uniquely combines bottom-boot sector protection, BYTE-mode configurability, CBGA-48 footprint, and verified 10,000-cycle endurance - making it optimal for space-constrained industrial systems requiring robust, field-upgradable firmware architecture.

Availability

AT49BV8192A-11CI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code retention, and telecom base station configuration requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AT49BV8192A-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 AT49BV8192A-11CI belongs to Atmel's BV-series single-voltage Flash memory product line, designed specifically for reliable, in-system reprogrammable firmware storage in harsh-environment embedded systems with stringent data integrity requirements.

FAQ

What is the exact memory organization of the AT49BV8192A-11CI?

The AT49BV8192A-11CI is organized as either 512K words × 16 bits or 1M bytes × 8 bits. Its physical address space spans 00000H to 7FFFFH (524,288 words), divided into four erase sectors: an 8K-word boot block (00000H–01FFFH), two 4K-word parameter blocks (02000H–02FFFH and 03000H–03FFFH), and a 496K-word main memory array (04000H–7FFFFH). This structure is confirmed in Atmel's Rev. 1049I–03/01 datasheet Figure 2 and Section "Device Operation".

Does the AT49BV8192A-11CI support both byte and word programming modes?

Yes, the AT49BV8192A-11CI supports both modes via the BYTE pin. When BYTE = high or open, it operates in 16-bit word mode with I/O0–I/O15 active. When BYTE = low, it switches to 8-bit byte mode: I/O0–I/O7 become data lines, I/O8–I/O14 are tri-stated, and I/O15 functions as the LSB address input (A−1). This dual-mode capability is explicitly defined in the "Pin Configurations" and "Device Operation" sections of the AT49BV8192A(T) datasheet.

How is boot block protection implemented in the AT49BV8192A-11CI?

The AT49BV8192A-11CI implements boot block protection via a hardware lockout feature that, once enabled, prevents erasure or programming of the 8K-word boot sector (00000H–01FFFH) using standard 2.7–3.6V logic levels. Activation requires a precise six-cycle command sequence (5555H/AAH → 2AAAH/55H → 5555H/80H → 5555H/AAH → 2AAAH/55H → 5555H/40H). The lockout can only be overridden by applying 12V ± 0.5V to the RESET pin during erase/program operations.

What package type and footprint does the AT49BV8192A-11CI use?

The AT49BV8192A-11CI uses a 48-ball Chip-scale Ball Grid Array (CBGA) package, designated 48C1 per Atmel's ordering information. Its mechanical dimensions are 7.2 mm × 6.8 mm × 1.25 mm max height, with 0.75 mm ball pitch and JEDEC MO-142 D outline compliance. Pin mapping is fully documented in the "CBGA Top View (Ball Down)" diagrams on pages 2 and 3 of the datasheet, confirming ball assignments for A0–A18, BYTE, CE, OE, WE, RESET, I/O0–I/O15, VCC, and GND.

Can the AT49BV8192A-11CI be used in commercial-temperature applications?

No - the AT49BV8192A-11CI is rated for industrial temperature range only (−40°C to +85°C), as specified in the "AT49BV8192A(T) Ordering Information" table on page 14 of the datasheet. Its suffix "CI" denotes Industrial grade; commercial-grade variants (e.g., AT49LV8192A-90TC) exist but differ in voltage range (3.0–3.6V only) and temperature rating (0°C to +70°C). Using AT49BV8192A-11CI outside its qualified range voids specification guarantees.

AT49BV8192A-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)

AT49BV8192A-11CI FAQ

1.How can I place an order for AT49BV8192A-11CI through Aetrix?

Please submit a Request for Quotation (RFQ) for AT49BV8192A-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 AT49BV8192A-11CI reliable?

The price and inventory of AT49BV8192A-11CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV8192A-11CI is usually 5 days.

3.What payment methods are accepted for AT49BV8192A-11CI?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV8192A-11CI transactions.

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4.How is shipping managed for AT49BV8192A-11CI?

AT49BV8192A-11CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AT49BV8192A-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 AT49BV8192A-11CI?

For technical support, including AT49BV8192A-11CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV8192A-11CI requirements.

6.How does Aetrix verify that AT49BV8192A-11CI is sourced from the original manufacturer or authorized distributors?

All AT49BV8192A-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 AT49BV8192A-11CI meets industry standards.

7.What is the process for return or replacement of AT49BV8192A-11CI?

All AT49BV8192A-11CI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV8192A-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 AT49BV8192A-11CI part is unused and in its original packaging.

Return procedure for AT49BV8192A-11CI:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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