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Microchip Technology AT29BV010A-20JC
- Part No.:
- AT29BV010A-20JC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT29BV010A-20JC.pdf
- Description:
- IC FLASH 1MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,887
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Product details
Overview
AT29BV010A-20JC from Atmel is a 1 Mbit (128K × 8) single-supply Flash memory IC designed for in-system reprogrammability in embedded control and boot code storage applications. It operates from 2.7V to 3.6V, delivers 200 ns read access time, supports sector-based programming with 1024 × 128-byte sectors, and features dual 8K-byte boot blocks with independent lockout capability.
For engineers reviewing the AT29BV010A-20JC datasheet, AT29BV010A-20JC pinout, AT29BV010A-20JC application, or AT29BV010A-20JC equivalent, key selection criteria include its PLCC-32 package, 200 ns read timing, software data protection sequence, boot block lockout behavior, and compatibility with 2.7–3.6 V systems requiring nonvolatile program storage without high-voltage programming.
Technical Context
The AT29BV010A-20JC implements a sector-erase-and-program architecture where each 128-byte sector is erased and written in a single internal cycle, eliminating need for external erase commands. Its software data protection requires a three-byte command sequence (AAh→55h→A0h) before any sector load, and hardware safeguards include VCC sense (<2.0 V inhibits programming), noise filtering (<15 ns pulses ignored), and CE/OE/WE state-dependent inhibit logic.
It uses CMOS-compatible I/O with TTL-level input thresholds (VIL = 0.6 V, VIH = 2.0 V), supports DATA polling on I/O7 and toggle-bit detection on I/O6 for end-of-program indication, and provides two independent boot blocks (0x0000–0x1FFF and 0xFE000–0xFFFF) that can be permanently locked via a seven-command enable algorithm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), organized as 128K words × 8 bits - sufficient for firmware images or configuration tables in microcontroller-based systems. |
| Read Access Time | 200 ns max - enables direct execution from flash in 5–10 MHz bus systems without wait states. |
| Supply Voltage | 2.7 V to 3.6 V - compatible with battery-powered or low-voltage industrial systems; no external VPP required. |
| Active Current | 15 mA at 5 MHz - supports low-power operation during active reads in portable or energy-sensitive designs. |
| Standby Current | 40 µA CMOS standby - reduces quiescent power in always-on embedded controllers. |
| Sector Size | 1024 sectors × 128 bytes - allows fine-grained updates (e.g., patching individual driver modules) without full-chip erasure. |
| Endurance | 10,000 write/erase cycles per sector - suitable for field-upgradable firmware with moderate update frequency. |
Pinout & Package
AT29BV010A-20JC is packaged in a 32-lead Plastic Leaded Chip Carrier (PLCC-32), compliant with JEDEC MS-016, Variation AE. Dimensions: 12.47 mm × 14.99 mm × 3.35 mm (max height), with J-leads and pin 1 identifier notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 131,072-word addressing; A0–A6 select byte within 128-byte sector, A7–A16 select sector. |
| CE | Chip Enable | Active-low chip select; when high, device enters high-impedance standby mode with 40 µA current draw. |
| OE | Output Enable | Active-low output control; used with CE to manage bus contention during read operations. |
| WE | Write Enable | Active-low write strobe; initiates byte load during sector programming; must be synchronized with CE per tWP ≥ 200 ns. |
| I/O0–I/O7 | Bi-directional Data Bus | 8-bit multiplexed data path; supports DATA polling on I/O7 and toggle-bit detection on I/O6 during programming. |
| VCC | Power Supply | 2.7–3.6 V main supply; internal VCC sense circuit disables programming if voltage drops below ~2.0 V. |
| GND | Ground Reference | Signal and power ground reference; decoupling capacitor recommended near VCC pin. |
| NC | No Connect | Two unconnected pins (PLCC pin 13 and pin 30); must remain floating - no routing or termination required. |
Key Features
| Feature | Design Value |
|---|---|
| Single 2.7–3.6 V supply for read/write | Eliminates need for separate VPP programming voltage, simplifying power design and enabling true in-system reprogramming. |
| Software data protection (3-byte unlock) | Prevents accidental writes during power transitions or noise events by requiring AAh→55h→A0h sequence before each sector load. |
| Dual 8K-byte boot blocks with lockout | Enables secure storage of bootloader code; lockout activation (via 7-command sequence) makes boot sectors permanently read-only. |
| DATA polling and toggle-bit status | Allows host processor to detect programming completion without fixed delays - improves system responsiveness and reduces polling overhead. |
| Internal address/data latches (128 bytes) | Frees address/data bus after sector load initiation, enabling concurrent bus activity while internal erase-and-program executes. |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
|
Use Scenario: Storing firmware and calibration data in programmable logic controllers operating in harsh factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile program memory holding boot loader and application firmware; accessed during cold start and field updates. Use Value: 2.7–3.6 V operation ensures compatibility with industrial 3.3 V rails; 40 µA standby current extends uptime during brown-out conditions; boot block lockout prevents corruption of critical startup routines. |
Use Scenario: Holding certified boot code and safety-critical initialization routines in Class II medical instruments requiring regulatory traceability and tamper resistance. IC Role / Device Role / Timing Role: Secure boot memory with write-protection enforcement; stores immutable bootloader verified prior to application launch. Use Value: Dual boot blocks allow redundant or versioned boot images; lockout feature meets IEC 62304 requirements for preventing unauthorized modification of safety-related code. |
| Automotive Body Control Module | Point-of-Sale Terminal Configuration |
|
Use Scenario: Storing vehicle-specific configuration parameters and minor firmware patches in body control units exposed to -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Field-upgradable parameter memory; supports over-the-air updates via CAN gateway with minimal bus occupancy. Use Value: Industrial temperature rating (-40°C to +85°C) matches automotive under-hood requirements; sector granularity enables targeted updates without full reflash downtime. |
Use Scenario: Retaining localized language packs, tax tables, and peripheral driver settings across power cycles in retail terminals deployed globally. IC Role / Device Role / Timing Role: Persistent configuration store accessible during power-on reset and runtime parameter queries. Use Value: 10,000-cycle endurance exceeds typical field life for configuration changes; 200 ns read speed ensures fast UI initialization; PLCC-32 package offers robust solder joint reliability in vibration-prone kiosk installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF010-200-4C-NHE | Same density (1 Mbit), 200 ns access, 3.0–3.6 V supply; lacks boot block lockout and uses different software unlock sequence (5555h/2AAAh). | Supports standard sector erase but no dedicated boot protection; requires redesign of lockout-dependent boot flow. | Select when boot block security is not required and SST's faster 70 µs sector erase is beneficial. |
| MX29LV1100CTTI-20G | 1 Mbit, 200 ns, 3.0–3.6 V; includes CFI query support and uniform 64 KB sectors (vs. 128-byte sectors); no boot block lockout. | CFI compliance simplifies auto-detection in generic flash drivers; larger sector size increases minimum update granularity. | Choose for systems using standardized CFI-based flash abstraction layers and where 64 KB sector updates are acceptable. |
Compared with AT29BV010A-20JC, SST39VF010-200-4C-NHE offers faster erase but no boot lockout, while MX29LV1100CTTI-20G adds CFI support at the cost of finer-grained sector control - making AT29BV010A-20JC optimal for legacy or security-critical boot memory implementations requiring 128-byte update precision and hardware-enforced boot integrity.
Availability
AT29BV010A-20JC is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code, and automotive body control module applications requiring stable component supply, long-term lifecycle support, and consistent PLCC-32 packaging.
Supply support for AT29BV010A-20JC 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 secure authentication devices.
The AT29BV010A product line was engineered for low-voltage, in-system programmable Flash memory in resource-constrained embedded systems - emphasizing boot security, single-supply simplicity, and industrial temperature resilience.
FAQ
What is the maximum read access time specified for the AT29BV010A-20JC?
The AT29BV010A-20JC has a maximum read access time of 200 ns, measured from address valid to valid data on I/O0–I/O7 when CE and OE are asserted low and WE is high. This timing is guaranteed across the commercial temperature range (0°C to 70°C) and defines the upper limit for zero-wait-state operation in synchronous bus interfaces.
Does the AT29BV010A-20JC require a high-voltage programming signal?
No, the AT29BV010A-20JC does not require a high-voltage programming signal. It operates entirely from a single 2.7 V to 3.6 V supply for both read and write operations. Programming is enabled only after the software data protection sequence (AAh→55h→A0h) is issued, and internal circuitry handles all voltage generation and timing.
How many sectors does the AT29BV010A-20JC contain, and what is the size of each sector?
The AT29BV010A-20JC contains 1024 sectors, each 128 bytes in size. This structure enables precise firmware patching - for example, updating a single driver module without affecting unrelated code sections - and supports efficient wear leveling when managed by host firmware.
Can the boot blocks of the AT29BV010A-20JC be unlocked after programming lockout is enabled?
No, the boot block programming lockout feature in the AT29BV010A-20JC is irreversible once activated. The lockout is implemented via internal fuse-like circuitry triggered by the seven-command enable sequence. After activation, neither the lower (0x0000–0x1FFF) nor upper (0xFE000–0xFFFF) boot block can be erased or programmed, even with full chip erase commands.
What package type is used for the AT29BV010A-20JC, and is it lead-free?
The AT29BV010A-20JC uses a 32-lead Plastic Leaded Chip Carrier (PLCC-32) package, per JEDEC MS-016, Variation AE. Per Atmel documentation (Rev. 0519D), this variant is not RoHS-compliant and contains lead; lead-free alternatives (e.g., AT29BV010A-20JU) use different suffixes and packaging.
AT29BV010A-20JC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20ms
- Access Time:
- 200 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (13.97x11.43)
AT29BV010A-20JC FAQ
1.How can I place an order for AT29BV010A-20JC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT29BV010A-20JC 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 AT29BV010A-20JC reliable?
The price and inventory of AT29BV010A-20JC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT29BV010A-20JC is usually 5 days.
3.What payment methods are accepted for AT29BV010A-20JC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT29BV010A-20JC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT29BV010A-20JC?
AT29BV010A-20JC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT29BV010A-20JC 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 AT29BV010A-20JC?
For technical support, including AT29BV010A-20JC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT29BV010A-20JC requirements.
6.How does Aetrix verify that AT29BV010A-20JC is sourced from the original manufacturer or authorized distributors?
All AT29BV010A-20JC 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 AT29BV010A-20JC meets industry standards.
7.What is the process for return or replacement of AT29BV010A-20JC?
All AT29BV010A-20JC units undergo pre-shipment inspection (PSI). If there is an issue with AT29BV010A-20JC, 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 AT29BV010A-20JC part is unused and in its original packaging.
Return procedure for AT29BV010A-20JC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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