Renesas 7024S15PF

Overview

7024S15PF from IDT is a high-speed 4K × 16 true dual-port static RAM with independent asynchronous left/right ports, 15 ns max read cycle time (commercial grade), TTL-compatible 5V ±10% supply, and on-chip semaphore arbitration logic-used in real-time interprocessor communication systems requiring concurrent memory access without external logic.

For engineers reviewing the 7024S15PF datasheet, 7024S15PF pinout, 7024S15PF application, or 7024S15PF equivalent, key selection criteria include dual-port arbitration timing (tBDD ≤ 30 ns), battery-backed data retention at 2V (L-version), master/slave BUSY flag behavior, and 84-pin PLCC package compatibility with legacy military/industrial backplanes.

Technical Context

The 7024S15PF implements full hardware port arbitration with dedicated BUSY output (master) or input (slave), interrupt flag (INTL/INTR), and eight semaphore registers addressable via A0–A2. Its dual-port architecture enables simultaneous reads of identical memory locations without contention.

It supports two distinct operational modes: RAM access (CE = VIL, UB/LB = VIL, SEM = VIH) and semaphore register access (CE = VIH or UB&LB = VIH, SEM = VIL). Timing is fully asynchronous per port, with separate R/WL/R/WR, CEL/CER, OEL/OER, UBL/UBR, LBL/LBR controls enabling byte-selective 16-bit bus operation.

Key Specifications

Pinout & Package

7024S15PF is housed in an 84-pin Plastic Leaded Chip Carrier (PLCC) with 0.050″ lead pitch and body size ≈ 1.15″ × 1.15″ × 0.17″. All VCC and GND pins require direct connection to power/ground planes for noise immunity and thermal stability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C136-15VC and AS7C34096A-15JCIN, the 7024S15PF uniquely delivers 5V TTL compatibility, 2V data retention (L-version), and configurable master/slave BUSY arbitration-making it irreplaceable in legacy avionics, industrial control, and real-time embedded systems requiring deterministic hardware synchronization.

Availability

7024S15PF is available at Aetrix Electronics and suitable for real-time interprocessor communication, digital signal processing buffering, and military avionics data logging requiring stable component supply across extended product lifecycles.

Supply support for 7024S15PF 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 semiconductor company specializing in timing, memory interface, RF, and sensor solutions, now part of Renesas Electronics since 2019.

The IDT7024 family was engineered for high-reliability dual-ported memory applications in aerospace, defense, and industrial automation-where deterministic arbitration, wide temperature operation, and 5V system compatibility are mandatory.

FAQ

What is the maximum operating frequency supported by the 7024S15PF?

The 7024S15PF does not operate on a clock; it is fully asynchronous. Its performance is defined by timing parameters-not frequency. With a 15 ns maximum read cycle time (tRC), it supports sustained data transfer rates up to approximately 66.7 million operations per second under ideal conditions. Actual throughput depends on system-level timing margins, bus loading, and control signal sequencing.

Does the 7024S15PF support battery backup operation?

The 7024S15PF is the "S" (standard power) variant and does not support battery backup data retention. Only the "L" variant (e.g., 7024L15PF) guarantees data retention down to 2 V. The "S" version requires continuous 5V supply for volatile operation; applying 2V will result in undefined or corrupted data.

How does the master/slave (M/S) pin affect BUSY functionality in the 7024S15PF?

When M/S = HIGH, the 7024S15PF operates as a master: BUSYL/BUSYR become push-pull outputs that assert when port contention occurs. When M/S = LOW, it operates as a slave: BUSYL/BUSYR become inputs that must be monitored before initiating writes. This configuration enables seamless cascading without external logic.

Can the 7024S15PF perform simultaneous reads from both ports to the same memory address?

Yes-the 7024S15PF uses true dual-ported memory cells that allow concurrent reads from identical addresses on left and right ports without contention, latency penalty, or data corruption. This capability is fundamental to its architecture and is explicitly guaranteed in the datasheet's functional description.

What package type is used for the 7024S15PF, and is it RoHS compliant?

The 7024S15PF is packaged in an 84-pin Plastic Leaded Chip Carrier (PLCC), with body dimensions approximately 1.15″ × 1.15″ × 0.17″. It is RoHS compliant and qualifies as a "green part" per IDT's ordering information-containing no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE.