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Microchip Technology AT27BV040-15JC
- Part No.:
- AT27BV040-15JC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-LCC (J-Lead)
- Datasheet:
-
AT27BV040-15JC.pdf
- Description:
- IC EPROM 4MBIT PARALLEL 32PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,386
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Product details
Overview
AT27BV040-15JC from Atmel is a 4-Mbit (512K × 8) one-time programmable EPROM optimized for low-voltage battery-powered systems, featuring 150 ns read access time, dual-voltage operation (2.7–3.6V or 4.5–5.5V), and JEDEC-standard 32-lead PLCC packaging. It delivers TTL-compatible outputs at 3.0V and supports rapid programming at 100 µs/byte.
For engineers reviewing the AT27BV040-15JC datasheet, AT27BV040-15JC pinout, AT27BV040-15JC application, or AT27BV040-15JC equivalent, key selection criteria include unregulated battery voltage support (2.7–3.6V), industrial temperature range (−40°C to +85°C), 20 µA max standby current, JEDEC-compatibility with AT27C040, and PLCC package mechanical compatibility.
Technical Context
The AT27BV040-15JC implements a CMOS OTP memory architecture with two-line control (CE/OE), enabling bus contention avoidance in shared-data-bus systems. Its dual-supply design allows direct interface with both 3V logic and legacy 5V hosts without level-shifting.
It uses Atmel's Rapid™ Programming Algorithm with 100 µs CE pulses and integrated product identification (Manufacturer ID = 0x1E, Device ID = 0x0B), ensuring compatibility with standard AT27C040 programmers. Programming requires VCC = 6.5V and VPP = 13.0V, with strict sequencing (VCC applied before/with VPP).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4,194,304-bit (512K × 8) OTP EPROM - fixed, non-erasable storage for firmware boot code or configuration data. |
| Read Access Time | 150 ns max at VCC = 2.7–3.6V or 4.5–5.5V - meets timing requirements for 6.7 MHz system clocks in read-intensive embedded controllers. |
| Supply Voltage Range | 2.7–3.6V (unregulated battery) or 4.5–5.5V (standard 5V) - eliminates need for external voltage regulation in portable designs. |
| Standby Current | 20 µA max (CMOS mode, VCC = 3.6V) - extends battery life in always-on or sleep-mode applications like handheld instruments. |
| Active Power Dissipation | 36 mW max at 5 MHz and VCC = 3.6V - enables thermal management in dense PCB layouts without forced cooling. |
| ESD/Latchup Rating | 2,000V HBM ESD protection and 200 mA latchup immunity - ensures robustness in manufacturing and field environments. |
| Operating Temperature | −40°C to +85°C (industrial grade) - qualified for automotive body electronics, industrial PLC modules, and outdoor telemetry units. |
Pinout & Package
AT27BV040-15JC is supplied in a 32-lead Plastic Leaded Chip Carrier (PLCC) package per JEDEC MS-016 AE, with 1.27 mm pitch and 1.20 mm max height. Pin 1 is marked by an index notch on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus supporting full 512K-word addressing; all inputs CMOS/TTL compatible. |
| O0–O7 | Data Outputs | 8-bit bidirectional data bus; outputs drive TTL loads directly at VCC = 3.0V, eliminating external buffers. |
| CE | Chip Enable | Active-low chip select; controls device activation and power state transition between active/standby modes. |
| OE | Output Enable | Active-low output gate; used with CE to manage bus contention and reduce dynamic power during partial reads. |
| VCC | Power Supply | Main supply input (2.7–3.6V or 4.5–5.5V); must be applied before/with VPP during programming. |
| VPP | Programming Voltage | 13.0V ± 0.25V programming supply; requires external decoupling (0.1 µF ceramic capacitor to GND). |
| GND | Ground Reference | Signal and power ground reference; requires low-inductance connection to minimize noise during high-speed reads. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Voltage Read Operation | Operates natively at 2.7–3.6V (battery) or 4.5–5.5V (5V rail) - simplifies mixed-voltage system integration without regulators or translators. |
| Rapid™ Programming Algorithm | 100 µs/byte typical programming time with auto-verify loop - reduces production programming cycle time vs. legacy EPROMs. |
| Integrated Product ID Code | Manufacturer ID (0x1E) and Device ID (0x0B) accessible via A9/VH and A0 toggle - enables automatic algorithm selection in universal programmers. |
| JEDEC-Compatible Pinout | Pin-for-pin compatible with AT27C040 in PLCC/TSOP/VSOP packages - allows drop-in replacement in existing 5V designs upgrading to battery operation. |
| Low-Power Standby Mode | Typical standby current <1 µA at 3V - critical for energy harvesting and long-life battery applications such as remote sensors. |
Applications
| Industrial Control Firmware Storage | Portable Medical Device Boot ROM |
|---|---|
|
Use Scenario: Storing immutable boot firmware and calibration tables in programmable logic controllers (PLCs) deployed in factory automation environments. IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic startup sequence execution upon power-up or reset. Use Value: Industrial temperature rating (−40°C to +85°C) and 2,000V ESD protection ensure reliable operation in electrically noisy plant-floor settings. |
Use Scenario: Holding certified diagnostic firmware and safety-critical initialization routines in handheld ECG monitors and glucose meters. IC Role / Device Role / Timing Role: One-time programmable ROM securing firmware integrity against accidental overwrite or corruption. Use Value: Unregulated 2.7–3.6V operation extends single-cell Li-ion battery life beyond 12 months in standby mode. |
| Automotive Body Control Module | Legacy System Upgrade Adapter |
|
Use Scenario: Storing vehicle-specific configuration data (e.g., door lock logic, lighting profiles) in BCMs for mid-tier passenger vehicles. IC Role / Device Role / Timing Role: OTP memory providing tamper-resistant storage of calibrated parameters not intended for field updates. Use Value: TTL-level outputs at 3.0V enable direct interfacing with 5V microcontrollers without level shifters, reducing BOM cost. |
Use Scenario: Replacing obsolete AT27C040-15JC in legacy test equipment where 5V supply remains but battery backup is now required. IC Role / Device Role / Timing Role: Pin-compatible OTP EPROM delivering identical timing (150 ns tACC) and functional behavior under both 5V and 3.3V rails. Use Value: JEDEC-standard PLCC package and identical programming protocol eliminate PCB redesign and requalification effort. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C040-15JC | Requires 5V ±10% only; no 2.7–3.6V operation; same 150 ns access, PLCC package, and pinout. | Restricted to fixed 5V systems; lacks battery-voltage flexibility and ultra-low standby current. | Select when legacy 5V infrastructure prohibits voltage scaling and battery operation is unnecessary. |
| MX29LV400CBTI-15G | Flash-based (reprogrammable), 3.0V core, 150 ns access, 48-pin TSOP; different pinout and command set. | Supports field firmware updates; requires software-controlled erase/write sequences and additional voltage margining. | Select when reprogrammability is mandatory and board layout allows TSOP footprint and command protocol integration. |
Compared with AT27C040-15JC, the AT27BV040-15JC adds unregulated battery support and cuts standby current by >95%, while MX29LV400CBTI-15G trades OTP simplicity for reprogrammability at the cost of higher complexity and different packaging.
Availability
AT27BV040-15JC is available at Aetrix Electronics and suitable for industrial control firmware storage, portable medical device boot ROM, and automotive body control module applications requiring stable component supply across extended lifecycle windows.
Supply support for AT27BV040-15JC 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, non-volatile memory, and secure authentication ICs for embedded systems.
The AT27BV040 belongs to Atmel's Battery-Voltage™ OTP EPROM product line, designed specifically for portable, battery-powered applications requiring reliable, low-power, non-erasable program storage without voltage regulation.
FAQ
What voltage ranges does the AT27BV040-15JC support during normal read operation?
The AT27BV040-15JC supports two distinct read voltage ranges: 2.7V to 3.6V for unregulated battery operation and 4.5V to 5.5V for standard 5V systems. It does not operate reliably outside these ranges during read mode. The AT27BV040-15JC maintains full 150 ns access time and TTL-compatible outputs across both ranges, enabling seamless integration into dual-rail platforms.
Is the AT27BV040-15JC pin-compatible with the AT27C040-15JC?
Yes, the AT27BV040-15JC is pin-compatible with the AT27C040-15JC in all JEDEC-standard packages (PLCC, TSOP, VSOP), including identical pin functions, numbering, and physical dimensions. The AT27BV040-15JC retains the same 32-pin PLCC footprint and signal mapping, allowing direct PCB substitution where battery-voltage operation or lower standby current is needed.
What programming voltage and conditions are required for the AT27BV040-15JC?
The AT27BV040-15JC requires VCC = 6.5V ± 0.25V and VPP = 13.0V ± 0.25V during programming, with VCC applied simultaneously with or before VPP. A 0.1 µF ceramic capacitor must be placed between VPP and GND. Programming uses 100 µs CE pulses and the Rapid™ algorithm; the AT27BV040-15JC is programmed identically to AT27C040 using standard EPROM programmers.
Does the AT27BV040-15JC support industrial temperature operation?
Yes, the AT27BV040-15JC is rated for industrial temperature operation from −40°C to +85°C, as confirmed by its ordering code suffix "I" (e.g., AT27BV040-15JI). This qualification applies to both read and standby modes under specified voltage ranges and ensures reliability in demanding environments such as factory automation and automotive under-hood modules.
How does the standby current of the AT27BV040-15JC compare to standard 5V EPROMs?
The AT27BV040-15JC achieves ≤20 µA maximum standby current at VCC = 3.6V (typically <1 µA), which is over five times lower than typical 5V EPROMs drawing 100–200 µA in standby. This ultra-low quiescent draw directly extends battery runtime in portable devices - a key advantage embedded in the AT27BV040-15JC's low-power CMOS process and optimized control logic.
AT27BV040-15JC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EPROM
- Technology:
- EPROM - OTP
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 150 ns
- Voltage - Supply:
- 2.7V ~ 3.6V, 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-PLCC (13.97x11.43)
AT27BV040-15JC FAQ
1.How can I place an order for AT27BV040-15JC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27BV040-15JC 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 AT27BV040-15JC reliable?
The price and inventory of AT27BV040-15JC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27BV040-15JC is usually 5 days.
3.What payment methods are accepted for AT27BV040-15JC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27BV040-15JC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27BV040-15JC?
AT27BV040-15JC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27BV040-15JC 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 AT27BV040-15JC?
For technical support, including AT27BV040-15JC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27BV040-15JC requirements.
6.How does Aetrix verify that AT27BV040-15JC is sourced from the original manufacturer or authorized distributors?
All AT27BV040-15JC 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 AT27BV040-15JC meets industry standards.
7.What is the process for return or replacement of AT27BV040-15JC?
All AT27BV040-15JC units undergo pre-shipment inspection (PSI). If there is an issue with AT27BV040-15JC, 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 AT27BV040-15JC part is unused and in its original packaging.
Return procedure for AT27BV040-15JC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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