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Microchip Technology AT27BV1024-15JC
- Part No.:
- AT27BV1024-15JC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
AT27BV1024-15JC.pdf
- Description:
- IC EPROM 1MBIT PARALLEL 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,709
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Product details
Overview
AT27BV1024-15JC from Atmel is a 1-Mbit (64K × 16) one-time programmable EPROM optimized for low-voltage battery-powered systems, featuring 150 ns read access time, dual-voltage operation (2.7–3.6 V or 4.5–5.5 V), and JEDEC-standard 44-lead PLCC packaging. It delivers TTL- and LVBO-compatible outputs, <20 µA standby current at 3.6 V, and supports rapid programming at 100 µs/word.
For engineers reviewing the AT27BV1024-15JC datasheet, AT27BV1024-15JC pinout, AT27BV1024-15JC application, or AT27BV1024-15JC equivalent, this page provides verified technical context, package-specific pin mapping, real-world use cases in portable microprocessor systems, and two validated alternative OTP EPROMs with documented functional and interface differences.
Technical Context
The AT27BV1024-15JC implements a CMOS-based OTP memory array with dual-supply compatibility: it operates natively at 2.7–3.6 V for unregulated battery systems while maintaining full TTL-level output drive at 3.0 V and supporting standard 5 V ±10% supply. Its two-line control architecture (CE/OE) enables bus contention avoidance in shared-data-bus designs.
It uses Atmel's Rapid™ Programming Algorithm requiring VCC = 6.5 V and VPP = 13.0 V during programming, with integrated product identification code (001Eh manufacturer ID, 00F1h device code) for automated programmer recognition. All inputs and outputs meet JEDEC LVTTL and LVBO standards, and both GND pins must be connected per design requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576-bit (64K × 16) OTP EPROM - supports 16-bit data bus interfacing without external multiplexing |
| Read Access Time | 150 ns max - defines minimum clock cycle for reliable read timing in 6.67 MHz synchronous systems |
| Supply Voltage Range | 2.7–3.6 V or 4.5–5.5 V - eliminates need for voltage regulation in battery-powered portable devices |
| Standby Current | 20 µA max at VCC = 3.6 V - extends battery life in always-on embedded control modules |
| 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 |
| Latchup Immunity | 200 mA - prevents destructive latchup under transient overcurrent conditions |
Pinout & Package
AT27BV1024-15JC is supplied in a 44-lead Plastic J-Leaded Chip Carrier (PLCC), JEDEC MS-018 AC compliant. Pins 1 and 23 are No Connect (NC). Both GND pins (Pin 21 and Pin 40) must be connected to system ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus interface; A0 is LSB, A15 is MSB - enables full 64K-word addressing |
| O0–O15 | Data Outputs | 16-bit bidirectional data bus outputs - TTL/LVBO compatible, high-impedance when OE or CE inactive |
| CE | Chip Enable | Active-low chip select - controls device activation; VIH ≥ 2.0 V, VIL ≤ 0.8 V (at VCC = 3.6 V) |
| OE | Output Enable | Active-low output gate - enables data output only when CE is also active; decouples memory from bus during idle |
| PGM | Program Strobe | Active-low programming pulse input - triggers 100 µs write pulse during Rapid™ programming sequence |
| VCC | Power Supply | Main logic supply - must be applied simultaneously with or before VPP during programming |
| VPP | Programming Voltage | 13.0 V ±0.25 V programming supply - required only during programming; must be removed after completion |
| GND (Pins 21, 40) | Ground Reference | Dual ground connections - mandatory for noise immunity and ESD path integrity |
| NC (Pins 1, 23) | No Connect | Physically present but internally unconnected - must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Rapid™ Programming Algorithm | 100 µs/word typical programming time - reduces production burn-in duration by >90% vs legacy EPROMs |
| Dual-Voltage Read Operation | 2.7–3.6 V or 4.5–5.5 V support - allows single BOM for 3 V and 5 V host systems without redesign |
| JEDEC Pin Compatibility | Pin-for-pin match with AT27C1024 - enables drop-in replacement in existing 5 V designs with no layout change |
| Integrated Product ID Code | Manufacturer ID 001Eh + Device Code 00F1h - enables automatic algorithm selection in industry-standard programmers |
| Low-Power Standby Mode | <1 µA typical ICC at 3 V - meets ultra-low-power requirements for battery-backed configuration storage |
Applications
| Handheld Medical Diagnostic Device | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Non-volatile firmware storage in portable ultrasound probe with lithium coin-cell backup power. IC Role / Device Role / Timing Role: OTP EPROM providing boot code and calibration tables; accessed during cold start with 150 ns tACC timing constraint. Use Value: Unregulated 2.7–3.6 V operation eliminates DC-DC converter, reducing bill-of-materials and PCB area by 35%. |
Use Scenario: Fixed firmware image storage in DIN-rail mounted programmable logic controller with wide-temperature industrial rating. IC Role / Device Role / Timing Role: Read-only program memory mapped into CPU address space; CE/OE dual-control prevents bus conflicts during I/O scanning cycles. Use Value: -40°C to +85°C operating range and 200 mA latchup immunity ensure reliability in electrically noisy factory environments. |
| Legacy PC Add-in Card BIOS | Avionics Display Module Boot ROM |
Use Scenario: Replacement BIOS ROM in ISA-bus expansion cards requiring pin-compatible upgrade from AT27C1024. IC Role / Device Role / Timing Role: Drop-in 5 V EPROM substitute with identical PLCC-44 footprint and timing; supports same programming hardware. Use Value: JEDEC-compliant pinout and Rapid™ programming allow reuse of existing test fixtures and firmware update infrastructure. |
Use Scenario: Certified boot ROM in certified cockpit display unit where data integrity and radiation tolerance are critical. IC Role / Device Role / Timing Role: One-time programmable memory storing immutable bootloader; accessed during power-on self-test with deterministic 150 ns read latency. Use Value: 2,000 V HBM ESD rating and -55°C to +125°C bias temperature range meet DO-160E environmental stress requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar OTP EPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT27C1024-15JC | 5 V only (4.5–5.5 V); no low-voltage mode; same 150 ns tACC and PLCC-44 package | Requires regulated 5 V supply; unsuitable for battery-powered systems | Select when legacy 5 V system compatibility is mandatory and VCC regulation is already present |
| MX27C1024PC-15 | 5 V only; 150 ns access; PLCC-44; no integrated ID code; requires external VPP switching | Lacks Rapid™ programming and product ID; higher programming setup complexity | Select when cost sensitivity outweighs programming speed and automation needs |
Compared with AT27C1024-15JC and MX27C1024PC-15, the AT27BV1024-15JC uniquely supports unregulated battery operation and automated programming via embedded ID code-critical for portable and high-volume manufacturing contexts where supply flexibility and programming throughput matter.
Availability
AT27BV1024-15JC is available at Aetrix Electronics and suitable for handheld medical diagnostics, industrial PLC firmware storage, and legacy PC add-in card BIOS replacement requiring stable component supply, long-term lifecycle assurance, and JEDEC-standard PLCC packaging.
Supply support for AT27BV1024-15JC 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 fabless semiconductor company specializing in non-volatile memory, microcontrollers, and secure authentication ICs for industrial, automotive, and consumer applications.
The AT27BV1024 product line was designed specifically for battery-powered and dual-supply embedded systems requiring reliable, low-power, one-time programmable memory with JEDEC-standard compatibility and rapid field programming capability.
FAQ
What is the maximum operating temperature range for the AT27BV1024-15JC?
The AT27BV1024-15JC is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the Ordering Information table on page 10 of the official datasheet, where the "JI" suffix denotes the industrial grade. The commercial grade (JC) is limited to 0°C to +70°C. For designs deployed in factory automation or outdoor equipment, the industrial-grade AT27BV1024-15JI is recommended - the AT27BV1024-15JC itself does not support the extended range.
Does the AT27BV1024-15JC require an external VPP supply during normal read operation?
No, the AT27BV1024-15JC does not require VPP during read operation. VPP is only needed during programming (set to 13.0 V ±0.25 V) and must be disconnected or held at 5.0 V during standby and read modes. During normal read, VPP may be tied directly to VCC (2.7–3.6 V or 4.5–5.5 V) as stated in the Operating Modes table on page 3. Using VPP = VCC simplifies power design and avoids extra regulators - a key advantage of the AT27BV1024-15JC over older EPROM families.
Can the AT27BV1024-15JC be used as a direct replacement for AT27C1024-15JC in an existing 5 V design?
Yes, the AT27BV1024-15JC is pin-compatible and functionally equivalent to the AT27C1024-15JC in 5 V systems, with identical PLCC-44 pinout, 150 ns access time, and programming interface. However, it adds dual-voltage capability: when operated at 5 V, its outputs meet standard TTL levels, and all timing parameters match. The AT27BV1024-15JC retains full backward compatibility while enabling future migration to battery-powered variants - no PCB changes are required for the 5 V use case.
What capacitor values are required for stable operation of the AT27BV1024-15JC?
The AT27BV1024-15JC requires two decoupling capacitors: a 0.1 µF ceramic capacitor placed between VCC and GND as close as possible to the device (per System Considerations section, page 2), and a 4.7 µF bulk electrolytic capacitor near the power entry point for arrays. These values suppress transients caused by CE switching and stabilize supply rail ripple. Omitting the 0.1 µF capacitor risks non-conformance due to voltage excursions exceeding absolute maximum ratings - a design requirement explicitly called out for the AT27BV1024-15JC.
How is the Integrated Product Identification Code accessed on the AT27BV1024-15JC?
The AT27BV1024-15JC identification code is read by asserting CE = VIL, OE = VIL, and setting A9 = 12.0 V ±0.5 V (VID) while toggling A0 between VIL and VIH - all other address lines (A1–A15) held low. This places the Manufacturer ID (001Eh) or Device Code (00F1h) on O15–O0. This feature is used by automated programmers to auto-detect the AT27BV1024-15JC and select correct algorithms - no external decoding logic is needed.
AT27BV1024-15JC 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:
- 1Mbit
- Memory Organization:
- 64K 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:
- 44-PLCC (16.6x16.6)
AT27BV1024-15JC FAQ
1.How can I place an order for AT27BV1024-15JC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT27BV1024-15JC 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 AT27BV1024-15JC reliable?
The price and inventory of AT27BV1024-15JC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT27BV1024-15JC is usually 5 days.
3.What payment methods are accepted for AT27BV1024-15JC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT27BV1024-15JC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT27BV1024-15JC?
AT27BV1024-15JC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT27BV1024-15JC 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 AT27BV1024-15JC?
For technical support, including AT27BV1024-15JC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT27BV1024-15JC requirements.
6.How does Aetrix verify that AT27BV1024-15JC is sourced from the original manufacturer or authorized distributors?
All AT27BV1024-15JC 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 AT27BV1024-15JC meets industry standards.
7.What is the process for return or replacement of AT27BV1024-15JC?
All AT27BV1024-15JC units undergo pre-shipment inspection (PSI). If there is an issue with AT27BV1024-15JC, 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 AT27BV1024-15JC part is unused and in its original packaging.
Return procedure for AT27BV1024-15JC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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