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Microchip Technology AT27BV4096-15JI
- Part No.:
- AT27BV4096-15JI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
AT27BV4096-15JI.pdf
- Description:
- IC EPROM 4MBIT PARALLEL 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,594
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Product details
Overview
AT27BV4096-15JI from Atmel is a 4-Mbit (256K × 16) one-time programmable EPROM optimized for unregulated battery-powered systems, featuring 150 ns read access time, dual-voltage operation (2.7–3.6 V or 4.5–5.5 V), and industrial temperature range (−40°C to +85°C). It delivers TTL-compatible outputs at 3.0 V and supports rapid programming at 100 µs/word.
For engineers reviewing the AT27BV4096-15JI datasheet, AT27BV4096-15JI pinout, AT27BV4096-15JI application, or AT27BV4096-15JI equivalent, this device serves as a low-power, pin-compatible upgrade to AT27C4096 in portable microprocessor systems requiring battery-voltage tolerance, JEDEC-standard PLCC packaging, and verified OTP reliability.
Technical Context
The AT27BV4096-15JI implements a CMOS-based OTP memory array with two-line control (CE/OE), enabling bus contention avoidance in shared-data-bus architectures. Its dual-supply compatibility allows seamless integration into mixed-voltage systems-operating at 3.0 V while driving TTL-level loads and supporting full 5 V host compatibility.
It uses Atmel's Rapid™ Programming Algorithm with 50 µs CE pulses and on-the-fly verification, requiring VCC = 6.5 V and VPP = 13.0 V during programming. Product identification is enabled via A9 voltage sensing (12.0 V ± 0.5 V) and A0 toggling, returning manufacturer code 001Eh and device code 00F4h.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4,194,304-bit (256K × 16) OTP EPROM - supports 16-bit data bus interface without external multiplexing. |
| Read Access Time | 150 ns max at VCC = 2.7–3.6 V or 4.5–5.5 V - meets timing budgets for 6.67 MHz microprocessor buses. |
| Supply Voltage Range | 2.7–3.6 V (unregulated battery) or 4.5–5.5 V (standard 5 V) - eliminates need for LDO regulation in portable designs. |
| Standby Current | 20 µA max at VCC = 3.6 V (CMOS CE mode) - extends battery life in always-on embedded systems. |
| Active Power Dissipation | 36 mW max at 5 MHz and VCC = 3.6 V - enables thermal-safe placement in dense PCB layouts. |
| ESD Protection | 2,000 V HBM - ensures robustness during handling and board assembly without additional protection circuitry. |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade deployment in automotive body control and factory automation. |
Pinout & Package
AT27BV4096-15JI is supplied in a 44-lead Plastic Leaded Chip Carrier (PLCC) package per JEDEC MS-018 AC. Pins 1 and 23 are No Connect (NC); both GND pins (pins 22 and 44) must be connected to ground plane for stable operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word addressing; all inputs CMOS/TTL compatible. |
| O0–O15 | Data Outputs | 16-bit bidirectional output bus; VOH ≥ VCC − 0.2 V at −100 µA ensures reliable logic-high drive into TTL loads. |
| CE | Chip Enable | Active-low enable controlling device selection; transitions between active/standby induce transient suppression requirements (0.1 µF local decoupling). |
| OE | Output Enable | Active-low output gate; independent of CE, allowing output float control for bus sharing without contention. |
| VCC | Power Supply | Primary supply input (2.7–3.6 V or 4.5–5.5 V); must be applied simultaneously with or before VPP during programming. |
| VPP | Programming Voltage | 13.0 V ± 0.25 V programming supply; requires dedicated 0.1 µF capacitor to ground to suppress transients. |
| GND (2×) | Ground Reference | Two separate ground terminals (pins 22 and 44); both must be connected to minimize ground bounce and ensure read stability. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Voltage Read Operation | Operates natively at 2.7–3.6 V (battery) or 4.5–5.5 V (host rail) - eliminates level shifters in pluggable card designs. |
| Rapid™ Programming Algorithm | 100 µs/word typical programming time with auto-verify loop - reduces production programming cycle time by >5× vs legacy EPROMs. |
| Integrated Product ID Code | Manufacturer ID 001Eh and Device ID 00F4h returned via A9/VH and A0 toggle - enables automatic algorithm selection in universal programmers. |
| JEDEC Pin Compatibility | Pinout matches AT27C4096 - allows drop-in replacement in existing 5 V designs without PCB revision. |
| Low-Power Standby Mode | <1 µA typical ISB at 3.0 V - enables "always-on" firmware storage in battery-backed systems with multi-year shelf life. |
Applications
| Portable Medical Diagnostic Handheld | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Battery-powered handheld ultrasound controller storing boot firmware and calibration tables. IC Role / Device Role / Timing Role: OTP EPROM providing nonvolatile program storage with direct 16-bit bus interface to ARM7TDMI core. Use Value: Unregulated 3.0 V battery operation eliminates DC/DC converter, reducing BOM cost and board area by 30%. |
Use Scenario: Firmware retention module in DIN-rail mounted PLC CPU unit operating in factory environments. IC Role / Device Role / Timing Role: Industrial-grade OTP memory holding bootloader and safety-critical configuration data. Use Value: −40°C to +85°C rating and 2,000 V ESD ensure uninterrupted operation in electrically noisy manufacturing floors. |
| Modular Telecom Line Card | Automotive Body Control Module |
Use Scenario: Hot-pluggable line card in carrier-class access switch requiring firmware persistence across power cycles. IC Role / Device Role / Timing Role: Dual-voltage OTP memory enabling interoperability with both 3.3 V and 5 V backplane hosts. Use Value: Pin compatibility with AT27C4096 allows reuse of legacy 5 V programming infrastructure while supporting new low-voltage cards. |
Use Scenario: Nonvolatile storage for window lift calibration and door lock logic in vehicle body control units. IC Role / Device Role / Timing Role: Immune OTP memory retaining critical safety parameters after battery disconnect events. Use Value: 200 mA latchup immunity prevents system failure during load dump transients common in 12 V automotive electrical systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C4096-15JC | 5 V-only operation (4.5–5.5 V); no 2.7–3.6 V support; identical 150 ns tACC and PLCC-44 package. | Limited to fixed 5 V systems; cannot replace AT27BV4096-15JI in battery-powered or dual-voltage designs. | Select when only 5 V supply is available and industrial temperature range is not required. |
| MN65E4096L-15Q | Same 256K × 16 OTP architecture; 150 ns access; but TSOP-40 only (no PLCC option); lower standby current (5 µA typ). | Requires PCB redesign due to different footprint and pinout; unsuitable for socketed PLCC-based field upgrades. | Choose for space-constrained designs where TSOP-40 fits and ultra-low standby is prioritized over mechanical serviceability. |
Compared with AT27C4096-15JC and MN65E4096L-15Q, the AT27BV4096-15JI uniquely combines industrial temperature rating, dual-voltage operation, and PLCC-44 socket compatibility-enabling field-upgradeable, battery-tolerant firmware storage without layout changes.
Availability
AT27BV4096-15JI is available at Aetrix Electronics and suitable for industrial PLCs, portable medical devices, telecom line cards, and automotive body control modules requiring stable component supply across extended lifecycle commitments.
Supply support for AT27BV4096-15JI 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 secure authentication ICs for industrial, automotive, and IoT applications.
The AT27BV4096 product line was designed to deliver battery-voltage-tolerant OTP memory for portable and pluggable systems-bridging legacy 5 V EPROM infrastructure with emerging low-power embedded platforms.
FAQ
What is the maximum operating voltage for AT27BV4096-15JI during normal read operation?
The AT27BV4096-15JI supports two distinct read supply ranges: 2.7 V to 3.6 V for unregulated battery use, and 4.5 V to 5.5 V (±10% of 5 V) for standard logic rail compatibility. It must not operate outside these ranges during read mode; exceeding 5.5 V or dropping below 2.7 V risks functional failure or data corruption. The AT27BV4096-15JI does not support intermediate voltages like 4.0 V.
Can AT27BV4096-15JI be programmed using standard AT27C4096 programming equipment?
Yes, the AT27BV4096-15JI uses the same programming algorithm, pinout, and command sequence as the AT27C4096, including identical VPP = 13.0 V and VCC = 6.5 V programming conditions. Its integrated product ID code (001Eh/00F4h) is recognized by industry-standard programmers, ensuring full backward compatibility with existing AT27C4096 programming infrastructure.
Does AT27BV4096-15JI require external decoupling capacitors, and if so, what values?
Yes, the AT27BV4096-15JI mandates two decoupling capacitors: a 0.1 µF high-frequency ceramic capacitor placed directly between VCC and GND (pins 22/44), and a 4.7 µF bulk electrolytic capacitor near the power entry point for arrays. These suppress transients caused by CE/OE switching and prevent non-conformance due to voltage excursions beyond datasheet limits.
Is AT27BV4096-15JI pin-compatible with AT27C4096 in both PLCC and TSOP packages?
The AT27BV4096-15JI is pin-compatible with AT27C4096 only in the PLCC-44 package (e.g., AT27C4096-15JC). Its TSOP-40 variant (AT27BV4096-15VI) shares functionality but has a different pinout and footprint versus AT27C4096-15VC, making it not mechanically or electrically interchangeable in TSOP sockets.
What is the purpose of the A9 and A0 pins during product identification mode on AT27BV4096-15JI?
During product identification, A9 is driven to 12.0 V ± 0.5 V (VH) to enable ID mode, while A0 is toggled between low and high to select either the Manufacturer ID byte (A0 = VIL) or Device ID byte (A0 = VIH). This returns 001Eh and 00F4h respectively on O15–O0, allowing automated programmer recognition of the AT27BV4096-15JI without manual part selection.
AT27BV4096-15JI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 44-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EPROM
- Technology:
- EPROM - OTP
- Memory Size:
- 4Mbit
- Memory Organization:
- 256K x 16
- 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:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-PLCC (16.6x16.6)
AT27BV4096-15JI FAQ
1.How can I place an order for AT27BV4096-15JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27BV4096-15JI 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 AT27BV4096-15JI reliable?
The price and inventory of AT27BV4096-15JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27BV4096-15JI is usually 5 days.
3.What payment methods are accepted for AT27BV4096-15JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27BV4096-15JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27BV4096-15JI?
AT27BV4096-15JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27BV4096-15JI 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 AT27BV4096-15JI?
For technical support, including AT27BV4096-15JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27BV4096-15JI requirements.
6.How does Aetrix verify that AT27BV4096-15JI is sourced from the original manufacturer or authorized distributors?
All AT27BV4096-15JI 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 AT27BV4096-15JI meets industry standards.
7.What is the process for return or replacement of AT27BV4096-15JI?
All AT27BV4096-15JI units undergo pre-shipment inspection (PSI). If there is an issue with AT27BV4096-15JI, 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 AT27BV4096-15JI part is unused and in its original packaging.
Return procedure for AT27BV4096-15JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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