Renesas 7024L15PF

Overview

7024L15PF from IDT is a high-speed 4K × 16 true dual-port static RAM with 15 ns maximum read cycle time, TTL-compatible 5V ±10% operation, and 1 µA typical standby current in low-power (L) mode. It supports simultaneous independent access from left and right ports, on-chip semaphore arbitration, and battery backup data retention down to 2V - enabling use in real-time inter-processor communication systems requiring deterministic latency and fault-tolerant memory sharing.

For engineers reviewing the 7024L15PF datasheet, 7024L15PF pinout, 7024L15PF application, or 7024L15PF equivalent, this page delivers verified specifications, validated pin functions for the 100-pin TQFP package, industrial-grade timing behavior, and two confirmed alternative parts for dual-port SRAM migration paths in embedded control and military avionics designs.

Technical Context

The 7024L15PF implements fully asynchronous dual-port architecture with separate address, data, and control buses per port (left/right), enabling concurrent read/write operations to the same or different memory locations without external logic. Its on-chip arbitration logic resolves contention via BUSY flag signaling and master/slave configuration (M/S pin), while integrated semaphore registers (A0–A2 addressed) provide hardware-level mutual exclusion across ports.

It operates in three power modes: active (750 mW typ.), standby with TTL-level inputs (5 mA typ.), and full standby with CMOS-level inputs (1 µA typ.). Data retention at 2V is guaranteed for the L-version, and all timing parameters-including tRC = 15 ns, tAA = 15 ns, and tPD = 15 ns-are specified over commercial temperature range (0°C to +70°C).

Key Specifications

Pinout & Package

7024L15PF is packaged in a 100-pin Thin Quad Flatpack (TQFP) with 0.5 mm pitch, body size 14 mm × 14 mm × 1.4 mm. All VCC and GND pins must be connected per datasheet note; N/C pins are internally unused and must remain unconnected.

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 7024L15PF uniquely integrates hardware semaphore registers and master/slave BUSY signaling in a 100-pin TQFP package with verified 2V data retention - making it the only option among the three that satisfies MIL-STD-810G power-fail resilience requirements without design compromise.

Availability

7024L15PF is available at Aetrix Electronics and suitable for industrial PLC backplane memory, military avionics sensor fusion buffers, and telecom line card packet buffers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 7024L15PF 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 7024L15PF belongs to IDT's legacy high-speed dual-port SRAM product line, engineered for deterministic inter-processor communication in real-time embedded systems where hardware arbitration and low-latency memory access are critical.

FAQ

What is the maximum operating frequency supported by the 7024L15PF?

The 7024L15PF does not operate on a clock signal; it is fully asynchronous. Its maximum sustained throughput is determined by the 15 ns read cycle time (tRC), supporting up to 66.7 million read cycles per second per port. Write cycle time is also 15 ns, enabling matched read/write bandwidth without pipeline stalls. This makes the 7024L15PF ideal for systems requiring predictable, jitter-free memory access such as radar processing or motion control.

Does the 7024L15PF support battery backup operation, and what voltage threshold maintains data retention?

Yes, the 7024L15PF supports battery backup operation with guaranteed data retention down to 2.0 V (VDR = 2.0 V). At this voltage, the device draws ≤4000 µA in military/industrial grades and ≤1500 µA in commercial grade, enabling multi-year retention on small coin-cell batteries. The 7024L15PF enters retention mode automatically when VCC drops below 2.0 V while CE remains high, preserving all 64 Kbits without external circuitry.

How does the M/S pin configure master versus slave operation in a cascaded 7024L15PF system?

When M/S = HIGH, the 7024L15PF operates as a master: BUSYR becomes an output that asserts during port contention, signaling the slave to delay writes. When M/S = LOW, it operates as a slave: BUSYL becomes an input that must be driven by the master's BUSYR to gate local write operations. This hardware handshake eliminates race conditions in 32-bit+ bus expansions and is validated for simultaneous 15 ns access on both devices.

Can the 7024L15PF perform simultaneous reads from both ports to the same memory address?

Yes, the 7024L15PF features true dual-port memory cells that allow completely independent, simultaneous reads from both left and right ports to the exact same address location - with no timing penalty, no arbitration delay, and no data corruption. This capability is fundamental to its architecture and is explicitly guaranteed in the datasheet under "True Dual-Ported memory cells which allow simultaneous reads of the same memory location."

What are the key timing differences between the 7024L15PF and the faster 7024L17PF variant?

The 7024L15PF has tighter timing specs than the 7024L17PF: tRC = 15 ns (vs. 17 ns), tAA = 15 ns (vs. 17 ns), and tPD = 15 ns (vs. 17 ns). All other parameters - including standby current (1 µA), data retention (2V), and pinout - are identical. The 7024L15PF is therefore selected when system timing margins require the fastest guaranteed access, especially in high-throughput inter-processor links where every nanosecond affects determinism.