My Inquiry
My Account
Microchip Technology AT49BV002AN-70TI
- Part No.:
- AT49BV002AN-70TI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV002AN-70TI.pdf
- Description:
- IC FLASH 2MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,973
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT49BV002AN-70TI from Atmel is a 2.7V-only, 2 Mbit (256K × 8) in-system reprogrammable Flash memory IC with 70 ns read access time, organized in sector architecture including one 16K-byte boot block with programming lockout, two 8K-byte parameter blocks, and four main memory blocks (32K + 3×64K bytes), used for firmware storage and code execution in embedded microcontroller systems.
For engineers reviewing the AT49BV002AN-70TI datasheet, AT49BV002AN-70TI pinout, AT49BV002AN-70TI application, or AT49BV002AN-70TI equivalent, key selection criteria include single-supply 2.7–3.6 V operation, hardware data protection, DATA polling/toggle bit erase/program status detection, and boot block write lockout enforcement without high-voltage programming pins.
Technical Context
The AT49BV002AN-70TI implements standard EPROM-compatible read interface with CE/OE/WE control logic and supports software command sequences for byte programming, sector erase, chip erase, and boot block lockout enable/disable. It uses internal program control and timer to manage pulse generation and timing without external clocks.
Its sector architecture enables selective erasure of individual 8K-byte parameter blocks or 32K/64K-byte main memory blocks, while the boot block (00000H–03FFFH) features permanent lockout once enabled - a critical feature for secure bootloader storage in industrial control and telecom equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (262,144 × 8 bits), sufficient for compact firmware images in 8-bit microcontroller systems. |
| Read Access Time | 70 ns max - enables direct execution from flash (XIP) in systems with ≤14 MHz bus timing. |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic rails and battery-backed operation without level shifters. |
| Byte Programming Time | 30 µs typical - allows rapid field updates of configuration data or small code patches. |
| Erase Cycle Time | 4 seconds max for full chip erase - balances speed and reliability for infrequent firmware upgrades. |
| End-of-Operation Detection | DATA polling (I/O7 complement) and toggle bit (I/O6 toggling) - eliminates need for fixed delay timers in host firmware. |
| Write Endurance | 10,000 program/erase cycles - suitable for applications requiring moderate field update frequency over 5+ year service life. |
| Standby Current | 50 µA CMOS - enables low-power sleep modes in portable or energy-harvested devices. |
Pinout & Package
AT49BV002AN-70TI is supplied in a 32-lead Thin Small Outline Package (TSOP), Type I, 8 mm × 20 mm body size, with gull-wing leads and pin 1 identifier marked on top surface. Pin 9 is no-connect (NC) per datasheet Rev. 3353D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word addressing; A11 is don't-care in command cycles. |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel interface for read data output and program data input; supports DATA polling on I/O7 and toggle bit on I/O6. |
| CE | Chip Enable | Active-low chip select; must be low for read/write operations; high-Z outputs when high. |
| OE | Output Enable | Active-low output gate; controls data assertion on I/O lines during read; required high during programming. |
| WE | Write Enable | Active-low write strobe; latches address/data during command sequences and byte programming. |
| RESET | Reset Input | Active-low reset; halts ongoing operations and forces high-Z outputs; not used for boot block override (unavailable on AN variant). |
| VCC / GND | Power Supply | Single 2.7–3.6 V supply; 50 µA standby current enables low-power system design. |
Key Features
| Feature | Design Value |
|---|---|
| Boot Block Programming Lockout | 16K-byte region (00000H–03FFFH) permanently protected after enable command - prevents accidental bootloader corruption. |
| Hardware Data Protection | VCC sense (<1.8 V inhibits programming), noise filter (rejects <15 ns pulses), and control-line inhibit (OE low/CE high/WE high blocks writes). |
| Sector-Erasable Architecture | Independent erase of two 8K-byte parameter blocks and four main memory blocks - enables modular firmware updates without full chip erase. |
| Standard Command Interface | 6-byte chip erase, 6-byte sector erase, and 4-byte byte program sequences using only 5 V–level signals - eliminates need for high-voltage programmers. |
| Software Product Identification | Manufacturer code 1FH and device code 07H readable via software entry sequence - enables automatic device detection in production programming. |
Applications
| Industrial PLC Firmware Storage | Telecom Line Card Bootloader |
|---|---|
Use Scenario: Storing firmware and configuration data in programmable logic controllers operating across -40°C to +85°C industrial environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with XIP-capable 70 ns read access and sector-erase flexibility for field-upgradable logic modules. Use Value: Boot block lockout ensures bootloader integrity during remote firmware updates; 50 µA standby current extends uptime in battery-backed backup systems. |
Use Scenario: Hosting secure boot code and DSP firmware on telecom line cards requiring certified, tamper-resistant storage. IC Role / Device Role / Timing Role: Trusted boot memory with permanent 16K-byte lockout region and DATA polling for deterministic programming timing. Use Value: Eliminates risk of corrupted startup sequence during power cycling; single 3.3 V supply simplifies power rail design versus 5 V–only alternatives. |
| Medical Diagnostic Instrument BIOS | Automotive Body Control Module Code |
Use Scenario: Storing calibration tables and safety-critical boot routines in FDA-regulated diagnostic imaging equipment. IC Role / Device Role / Timing Role: Read-stable, long-life nonvolatile memory with 10,000-cycle endurance and hardware write protection against EMI-induced glitches. Use Value: Toggle bit detection enables robust programming verification without external timing components; TSOP package supports compact PCB layout. |
Use Scenario: Holding application firmware in automotive body control units where vibration, temperature extremes, and EMC resilience are mandatory. IC Role / Device Role / Timing Role: In-system reprogrammable flash with industrial temp range (-40°C to +85°C) and VCC-sense programming inhibition. Use Value: Sector erase capability allows incremental firmware patches without full reflash; NC pin (pin 9) simplifies PCB routing in dense automotive modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM29LV002BT-70EC | 3.0–3.6 V supply only; no 2.7 V operation; 70 ns access; same 2 Mbit density and TSOP-32 package. | Lacks boot block lockout and RESET-based override; uses different command set (AMD-style). | Select if system already uses AMD-compatible firmware drivers and operates strictly at ≥3.0 V. |
| SST39VF200A-70-4C-NHE | 2.7–3.6 V compatible; 70 ns access; 2 Mbit density; TSOP-48 package (not pin-compatible). | Includes dual-boot block architecture and faster 1 µs write recovery; requires PCB redesign due to 48-pin footprint. | Choose for higher write throughput and dual-sector protection where board space allows package change. |
Compared with AM29LV002BT-70EC and SST39VF200A-70-4C-NHE, the AT49BV002AN-70TI uniquely delivers 2.7 V minimum operation, dedicated boot block lockout with permanent protection, and TSOP-32 pinout compatibility - making it optimal for legacy 3.3 V embedded designs requiring secure, low-voltage firmware storage without layout changes.
Availability
AT49BV002AN-70TI is available at Aetrix Electronics and suitable for industrial PLC firmware storage, telecom line card bootloaders, and medical diagnostic instrument BIOS requiring stable component supply, long-term lifecycle support, and guaranteed TSOP-32 packaging consistency.
Supply support for AT49BV002AN-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
Atmel Corporation, now part of Microchip Technology, is a semiconductor innovator specializing in microcontrollers, nonvolatile memory, and security ICs for industrial, automotive, and communications markets.
The AT49BV002AN-70TI belongs to Atmel's Battery-Voltage™ Flash family, designed specifically for single-supply, in-system reprogrammable code storage in resource-constrained embedded systems operating from 2.7 V rails.
FAQ
What is the boot block address range for AT49BV002AN-70TI?
The AT49BV002AN-70TI boot block occupies address range 00000H to 03FFFH (16K bytes). This differs from the AT49BV002AT variant, which places the boot block at 3C000H–3FFFFH. The AT49BV002AN-70TI uses the lower-address boot block configuration, confirmed in the datasheet Rev. 3353D section "BOOT BLOCK PROGRAMMING LOCKOUT" and memory map diagrams.
Does AT49BV002AN-70TI support 12 V RESET override for boot block reprogramming?
No, AT49BV002AN-70TI does not support 12 V RESET override. The datasheet explicitly states "The RESET feature is not available on the AT49BV002AN(T)" and "This feature is not available on the AT49BV002AN(T)" in the BOOT BLOCK PROGRAMMING LOCKOUT OVERRIDE section. Once enabled, the boot block lockout is permanent under all voltage conditions up to 5.5 V.
What is the meaning of "NC" on pin 9 of AT49BV002AN-70TI?
Pin 9 of AT49BV002AN-70TI is designated No Connect (NC), as stated in the datasheet: "For the AT49BV002AN(T) pin 1 for the DIP and PLCC packages and pin 9 for the TSOP package are no connect pins." This means the pin is internally unconnected and must be left floating or tied to ground per board-level EMI best practices - it serves no functional role in AT49BV002AN-70TI operation.
How does DATA polling work on AT49BV002AN-70TI during byte programming?
During byte programming, reading the programmed address returns the complement of the loaded data on I/O7 until completion. Once programming finishes, true data appears on all I/O lines. This allows host firmware to poll I/O7 without fixed delays. The AT49BV002AN-70TI supports this mode per the "DATA POLLING" section of Rev. 3353D, with tDH = 10 ns minimum hold time required for reliable detection.
Is AT49BV002AN-70TI compatible with standard EPROM read timing?
Yes, AT49BV002AN-70TI is fully compatible with standard EPROM read timing: CE and OE low with WE high asserts data on I/O0–I/O7 within 70 ns (tACC), and outputs go high-Z when CE or OE is high. Its AC Read Characteristics table confirms tCE = 70 ns and tOE = 35 ns max, matching common 27Cxxx EPROM timing envelopes for drop-in replacement in legacy designs.
AT49BV002AN-70TI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-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:
- 2Mbit
- Memory Organization:
- 256K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 50µs
- Access Time:
- 70 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT49BV002AN-70TI FAQ
1.How can I place an order for AT49BV002AN-70TI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV002AN-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 AT49BV002AN-70TI reliable?
The price and inventory of AT49BV002AN-70TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV002AN-70TI is usually 5 days.
3.What payment methods are accepted for AT49BV002AN-70TI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV002AN-70TI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV002AN-70TI?
AT49BV002AN-70TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV002AN-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 AT49BV002AN-70TI?
For technical support, including AT49BV002AN-70TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV002AN-70TI requirements.
6.How does Aetrix verify that AT49BV002AN-70TI is sourced from the original manufacturer or authorized distributors?
All AT49BV002AN-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 AT49BV002AN-70TI meets industry standards.
7.What is the process for return or replacement of AT49BV002AN-70TI?
All AT49BV002AN-70TI units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV002AN-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 AT49BV002AN-70TI part is unused and in its original packaging.
Return procedure for AT49BV002AN-70TI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV002AN-70TI Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
