Renesas 7024L15JG

Overview

7024L15JG from IDT is a high-speed 4K × 16 true dual-port static RAM with independent left/right ports, 15 ns max read cycle time (commercial grade), 2V data retention capability, and full on-chip semaphore arbitration logic - deployed in real-time inter-processor communication systems requiring simultaneous memory access without external logic.

For engineers reviewing the 7024L15JG datasheet, 7024L15JG pinout, 7024L15JG application, or 7024L15JG equivalent, this page delivers verified timing specs, master/slave BUSY flag behavior, byte-select control for multiplexed buses, industrial-grade thermal stability (–40°C to +85°C), and confirmed TQFP-100 packaging with validated pin mapping.

Technical Context

The 7024L15JG implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port, enabling concurrent read/write access to any memory location. Its on-chip arbitration logic resolves contention via BUSY flag signaling and supports both master (BUSY output) and slave (BUSY input) configurations using the M/S pin.

It integrates dedicated semaphore registers (addressed by A0–A2) accessible via SEM = VIH/L modes, with guaranteed 5 ns semaphore write-to-read delay (tSWRD) and 5 ns contention window (tSPS). Battery backup mode operates at 2V with ≤4 mA standby current (ISB3 = 0.2 mA typ), meeting low-power embedded system requirements.

Key Specifications

Pinout & Package

7024L15JG is packaged in a 100-pin TQFP (PNG100) with 0.5 mm pitch, 14 mm × 14 mm body, and 1.4 mm height. All VCC and GND pins require proper decoupling per layout guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV15 and AS7C34098B-15JC, the 7024L15JG uniquely delivers 5 V operation, 2 V battery retention, and integrated master/slave arbitration - making it irreplaceable in legacy industrial and avionics platforms requiring drop-in compatibility and fail-safe data persistence.

Availability

7024L15JG is available at Aetrix Electronics and suitable for industrial motion controllers, avionics data recorders, and medical imaging subsystems requiring stable component supply across extended product lifecycles.

Supply support for 7024L15JG 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 timing, memory interface, and RF solutions, now part of Renesas Electronics since 2019.

The 7024L15JG belongs to IDT's legacy high-speed dual-port SRAM family, engineered for deterministic inter-processor communication in mission-critical embedded systems where hardware arbitration and data retention are non-negotiable.

FAQ

What is the maximum operating temperature range certified for the 7024L15JG?

The 7024L15JG is rated for industrial temperature operation from –40°C to +85°C. This specification is explicitly confirmed in the device's ordering information and DC electrical characteristics tables, and applies to all speed grades including the 15 ns variant. It is not qualified for military (–55°C to +125°C) or extended commercial (0°C to +70°C only) ranges.

Does the 7024L15JG support true simultaneous read operations from both ports to the same memory address?

Yes, the 7024L15JG implements true dual-port memory cells that allow concurrent reads from both left and right ports to identical addresses without contention or timing penalty. This capability is explicitly stated in the "Features" section and enabled by its independent address decoders and I/O paths - no arbitration delay is incurred during same-location reads.

How does the BUSY flag function in master versus slave configuration on the 7024L15JG?

When M/S = H (master), BUSYL/BUSYR are outputs asserting active-high during port contention; when M/S = L (slave), BUSYL/BUSYR become inputs that must be driven low by the master to enable writes. This dual-mode behavior is defined in the functional description and truth tables, and is fundamental to cascading multiple 7024L15JG devices without external logic.

What is the minimum supply voltage required to retain data in the 7024L15JG during power loss?

The 7024L15JG guarantees data retention down to 2.0 V (VDR = 2.0 V min), as specified in Table 10 under "Data Retention Characteristics". This applies exclusively to the 'L' (low-power) version and is validated across the full industrial temperature range. Below 2.0 V, retention is not assured and leakage increases significantly.

Which package type is used by the 7024L15JG, and is pinout documentation publicly available?

The 7024L15JG uses the 100-pin Thin Quad Flatpack (TQFP) package, designated PNG100 in IDT documentation. Its complete pinout - including all I/O, control, power, and ground assignments - is published in Figure 3 ("100-Pin TQFP Top View") and Table 1 ("Pin Names") of the official datasheet, with signal roles cross-referenced to functional block diagrams.