Renesas 7026L15J8

Overview

IDT7026L15J8 from IDT (Integrated Device Technology) is a high-speed 16K × 16 true dual-port static RAM with independent left/right ports, 15 ns maximum read cycle time, 5 V ±10% single-supply operation, and integrated hardware semaphore arbitration logic - used in real-time inter-processor communication systems requiring simultaneous memory access without contention.

For engineers reviewing the IDT7026L15J8 datasheet, IDT7026L15J8 pinout, IDT7026L15J8 application, or IDT7026L15J8 equivalent, key selection considerations include its 84-pin PLCC package, industrial temperature range (−40°C to +85°C), 1 mW typical standby power, dual-port arbitration timing (tBDD ≤ 30 ns), and master/slave cascading capability for 32-bit+ bus expansion.

Technical Context

The IDT7026L15J8 implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port. It supports concurrent read/write operations to the same memory location using on-chip BUSY flag arbitration and eight hardware semaphores addressed via A0–A2.

Its CMOS process enables low-power operation (750 mW active, 1 mW standby), while TTL-compatible inputs/outputs interface directly with 5 V logic families. The M/S pin configures BUSYL/BUSYR as push-pull outputs (master) or write-inhibit inputs (slave), enabling flexible system-level synchronization.

Key Specifications

Pinout & Package

Package: 84-pin Plastic Leaded Chip Carrier (PLCC), 1.15 in × 1.15 in body, lead-free and RoHS-compliant per ordering information.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port SRAM applications.

Compared with CY7C028V-15JC and R1EX24016AS0C-15#U0, IDT7026L15J8 uniquely integrates configurable master/slave arbitration and eight hardware semaphores in a pin-compatible 84-pin PLCC footprint - enabling deterministic, low-latency inter-processor communication without external logic or firmware overhead.

Availability

IDT7026L15J8 is available at Aetrix Electronics and suitable for industrial PLC backplanes, avionics data concentrators, and medical imaging frame buffers requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.

Supply support for IDT7026L15J8 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

IDT (Integrated Device Technology) is a fabless semiconductor company specializing in high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.

IDT7026L15J8 belongs to the 7000-series dual-port SRAM product line, designed specifically for deterministic real-time inter-processor communication in safety-critical and high-reliability embedded systems.

FAQ

What is the operating temperature range for IDT7026L15J8?

IDT7026L15J8 is rated for industrial temperature operation from −40°C to +85°C, as confirmed in the Absolute Maximum Ratings table and Recommended Operating Conditions section of the official datasheet. This range is validated across all electrical parameters including access time, standby current, and BUSY arbitration timing.

Does IDT7026L15J8 support true simultaneous read/write to the same memory address?

Yes, IDT7026L15J8 supports true simultaneous access to the same memory location via its hardware BUSY arbitration logic. When both ports attempt access, the BUSY flag asserts to stall one port while allowing the other to proceed - a feature explicitly documented in the Functional Description and Truth Table I.

How does the M/S pin affect BUSY pin behavior on IDT7026L15J8?

When M/S = HIGH, IDT7026L15J8 operates as a master: BUSYL and BUSYR are push-pull outputs indicating address contention. When M/S = LOW, it operates as a slave: BUSYL and BUSYR become write-inhibit inputs - a design feature detailed in Pin Names table and Functional Block Diagram notes.

What is the standby current specification for IDT7026L15J8?

IDT7026L15J8 has a typical full-standby current (ISB3) of 0.2 mA when both ports are disabled with CMOS-level inputs, as specified in Table 10. This value is measured under VCC = 5.0 V, TA = +25°C, and is production-characterized for industrial-grade units.

Can IDT7026L15J8 be used in a 32-bit data bus configuration?

Yes, IDT7026L15J8 supports 32-bit expansion using master/slave cascading: one device configured as master (M/S = HIGH) and another as slave (M/S = LOW) enables full 32-bit word access without external logic, as described in the Features section and Functional Block Diagram caption.