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Microchip Technology AT27BV4096-15VC
- Part No.:
- AT27BV4096-15VC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 40-TFSOP (0.488", 12.40mm Width)
- Datasheet:
-
AT27BV4096-15VC.pdf
- Description:
- IC EPROM 4MBIT PARALLEL 40VSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,720
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Product details
Overview
AT27BV4096-15VC from Atmel is a 4-Mbit (256K × 16) one-time programmable EPROM optimized for low-voltage battery-powered systems, featuring 150 ns read access time, dual-supply operation (2.7–3.6 V or 4.5–5.5 V), and JEDEC-standard TSOP-40 packaging. It serves as nonvolatile program storage in portable microprocessor systems requiring unregulated battery voltage tolerance and TTL/LVBO interface compatibility.
For engineers reviewing the AT27BV4096-15VC datasheet, AT27BV4096-15VC pinout, AT27BV4096-15VC application, or AT27BV4096-15VC equivalent, key selection criteria include its 150 ns tACC timing at 3.6 V, ≤20 µA standby current, 40-pin TSOP package with verified pin mapping, and pin compatibility with AT27C4096 for legacy design migration.
Technical Context
The AT27BV4096-15VC implements a CMOS OTP memory array organized as 256K words × 16 bits, supporting two-line control (CE/OE) for bus contention avoidance. Its dual-voltage architecture enables direct interfacing with both 3.3 V logic and 5 V TTL systems without level shifters.
It uses Atmel's Rapid™ Programming algorithm (100 µs/word typical) with integrated product identification code (001Eh manufacturer ID, 00F4h device ID) for automated programming equipment recognition. Programming requires VCC = 6.5 V and VPP = 13.0 V, while read/standby modes operate within 2.7–3.6 V or 4.5–5.5 V ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4,194,304-bit (256K × 16) OTP EPROM - supports full 16-bit data bus interfaces without multiplexing. |
| Read Access Time (tACC) | 150 ns max at VCC = 2.7–3.6 V - meets timing requirements for 6.7 MHz microprocessor buses. |
| Supply Voltage Range | 2.7–3.6 V or 4.5–5.5 V - eliminates need for regulated 5 V supply in battery-powered designs. |
| Standby Current (ISB1) | 20 µA max at VCC = 3.6 V - extends battery life in handheld devices during idle periods. |
| Active Power Dissipation | 36 mW max at 5 MHz, VCC = 3.6 V - reduces thermal load in compact enclosures. |
| ESD Protection | 2,000 V HBM - ensures robustness during board handling and system integration. |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade embedded applications. |
Pinout & Package
AT27BV4096-15VC is supplied in a 40-lead TSOP (10 × 14 mm, JEDEC MO-142 CA) package. Both GND pins must be connected; no internal bonding to pin 20 or pin 39.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word decoding; A17 is MSB. |
| O0–O15 | Data Outputs | 16-bit bidirectional data bus outputs; compatible with TTL and LVBO logic levels. |
| CE | Chip Enable | Active-low chip select; controls device activation and power state transitions. |
| OE | Output Enable | Active-low output gate; enables data bus drivers independently of CE for bus sharing. |
| VCC | Power Supply | Primary supply input; must be applied before/with VPP during programming. |
| VPP | Programming Voltage | 13.0 V programming supply; requires external decoupling capacitor (0.1 µF). |
| GND (pins 20, 39) | Ground Reference | Two dedicated ground terminals; both must be connected to minimize noise and ensure ESD path integrity. |
| NC (pins 7, 23) | No Connect | Unbonded pins; must remain unconnected per datasheet specification. |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/word typical programming time - reduces production test cycle duration by >5× vs. conventional EPROMs. |
| Integrated Product ID Code | Manufacturer ID 001Eh and Device ID 00F4h - enables automatic algorithm selection in industry-standard programmers. |
| Dual-Voltage Interface Compatibility | TTL-level outputs at VCC = 3.0 V and LVBO compliance at VCC = 2.7 V - eliminates external level translators in mixed-voltage systems. |
| Low-Power Standby Mode | <1 µA typical ISB at 3.0 V - allows indefinite sleep mode in battery-backed real-time systems. |
| JEDEC-Standard Packaging | TSOP-40 (40V) footprint - ensures drop-in replacement capability in existing 40-pin EPROM layouts. |
Applications
| Handheld Medical Diagnostic Device | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Battery-powered ultrasound probe storing firmware and calibration tables. IC Role / Device Role / Timing Role: Nonvolatile program memory holding boot code and sensor configuration data. Use Value: Unregulated 3.0 V battery operation eliminates DC-DC converter, reducing BOM cost and PCB area while maintaining 150 ns read timing for real-time signal processing. | Use Scenario: Field-upgradable firmware storage in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: OTP EPROM providing tamper-resistant, factory-programmed control logic. Use Value: -40°C to +85°C rating ensures reliable operation in unconditioned control cabinets; 2,000 V ESD protection withstands industrial EMI environments. |
| Legacy 16-Bit Microprocessor Card | Modular Test Equipment Module |
Use Scenario: ISA-bus expansion card using 80C188EB CPU with on-board BIOS storage. IC Role / Device Role / Timing Role: Pin-compatible replacement for AT27C4096 in 5 V systems, also supporting 3.3 V host slots. Use Value: Dual-supply operation allows single BOM for both 5 V and 3.3 V chassis variants, simplifying inventory and logistics. | Use Scenario: Self-contained RF signal generator module requiring secure, unalterable calibration constants. IC Role / Device Role / Timing Role: One-time programmable memory storing factory-trimmed DAC coefficients and frequency lookup tables. Use Value: Rapid™ programming enables high-throughput calibration during final test; integrated ID code prevents firmware mismatch across module batches. |
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 (4.5–5.5 V); no low-voltage operation; same 150 ns tACC and 44-pin PLCC package. | Requires regulated 5 V supply; unsuitable for battery-powered systems. | Select when legacy 5 V-only design mandates identical pinout and timing without voltage flexibility. |
| MX29LV400CTT-15G | Flash-based (reprogrammable); 3.0 V operation; 48-pin TSOP; different command set and write protocol. | Supports field updates but requires erase cycles and software control; higher pin count. | Select when firmware update capability is required and board layout accommodates 48-pin footprint and timing margins. |
Compared with AT27C4096-15JC, the AT27BV4096-15VC adds unregulated battery support and lower power, while MX29LV400CTT-15G trades OTP security for reprogrammability at the cost of increased complexity and pin count.
Availability
AT27BV4096-15VC is available at Aetrix Electronics and suitable for industrial PLCs, handheld medical diagnostics, legacy microprocessor cards, and modular test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT27BV4096-15VC 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) designed high-reliability nonvolatile memory and microcontroller solutions for industrial, automotive, and consumer applications before its 2016 acquisition.
The AT27BV4096 belongs to Atmel's Battery-Voltage™ OTP EPROM product line, engineered specifically for portable and battery-operated systems needing robust, low-power, unregulated supply operation without sacrificing speed or interface compatibility.
FAQ
What is the maximum operating voltage for AT27BV4096-15VC during normal read mode?
The AT27BV4096-15VC supports two distinct supply ranges in read mode: 2.7 V to 3.6 V for low-voltage battery operation, and 4.5 V to 5.5 V (±10% of 5 V) for standard TTL-compatible systems. Operation outside these ranges, including at exactly 4.0 V or 3.7 V, is not guaranteed per datasheet specifications and may result in timing violations or data corruption. The AT27BV4096-15VC does not support intermediate voltages.
Does AT27BV4096-15VC require external decoupling capacitors, and if so, what values?
Yes, the AT27BV4096-15VC requires two external decoupling capacitors: a 0.1 µF ceramic capacitor placed between VCC and GND, and a second 0.1 µF ceramic capacitor between VPP and GND. Both must be mounted as close as possible to their respective pins to suppress transient voltage excursions during CE transitions and programming pulses. Failure to install these capacitors risks non-conformance due to supply rail instability, especially in multi-device arrays.
Is AT27BV4096-15VC pin-compatible with AT27C4096, and what does that mean for PCB design?
Yes, the AT27BV4096-15VC is explicitly pin-compatible with JEDEC-standard AT27C4096 in its TSOP-40 package variant. This means identical PCB footprints, trace routing, and signal assignments apply - no layout changes are needed when migrating from AT27C4096-15VC to AT27BV4096-15VC. However, VPP must be isolated from VCC during programming, unlike AT27C4096 where VPP = VCC in read mode, requiring minor schematic review for voltage switching circuitry.
What programming voltage and sequence are required for AT27BV4096-15VC?
The AT27BV4096-15VC requires VCC = 6.5 V ± 0.25 V and VPP = 13.0 V ± 0.25 V during programming, with VCC applied simultaneously with or before VPP and removed simultaneously with or after VPP. Programming uses a 50 µs CE pulse width and Atmel's Rapid™ algorithm, verifying each word up to 10 times if initial programming fails. Standard 5 V programmers cannot be used without hardware modification to generate the required VPP level.
Can AT27BV4096-15VC be used in systems with mixed 3.3 V and 5 V logic families?
Yes, the AT27BV4096-15VC delivers TTL-compatible output levels (VOH ≥ 2.4 V, VOL ≤ 0.4 V) when VCC = 3.0 V, enabling direct connection to 5 V TTL inputs without level shifters. At VCC = 2.7 V, it complies with JEDEC LVBO specifications, ensuring interoperability with other low-voltage logic. Input thresholds scale with VCC (VIH ≥ 0.7 × VCC), making it robust across both domains - a key advantage over fixed-threshold alternatives.
AT27BV4096-15VC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 40-TFSOP (0.488", 12.40mm Width)
- Packaging:
- Tray
- 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:
- 0°C ~ 70°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-VSOP
AT27BV4096-15VC FAQ
1.How can I place an order for AT27BV4096-15VC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27BV4096-15VC 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 AT27BV4096-15VC reliable?
The price and inventory of AT27BV4096-15VC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27BV4096-15VC is usually 5 days.
3.What payment methods are accepted for AT27BV4096-15VC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27BV4096-15VC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27BV4096-15VC?
AT27BV4096-15VC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27BV4096-15VC 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 AT27BV4096-15VC?
For technical support, including AT27BV4096-15VC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27BV4096-15VC requirements.
6.How does Aetrix verify that AT27BV4096-15VC is sourced from the original manufacturer or authorized distributors?
All AT27BV4096-15VC 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 AT27BV4096-15VC meets industry standards.
7.What is the process for return or replacement of AT27BV4096-15VC?
All AT27BV4096-15VC units undergo pre-shipment inspection (PSI). If there is an issue with AT27BV4096-15VC, 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 AT27BV4096-15VC part is unused and in its original packaging.
Return procedure for AT27BV4096-15VC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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