Renesas 7025L17PF

Overview

IDT7025L17PF from Integrated Device Technology (IDT) is a high-speed, 8K × 16-bit true dual-port static RAM with independent asynchronous left/right ports, 17 ns maximum read cycle time (tRC), 1 mW typical standby power, and industrial temperature range (–40°C to +85°C). It enables simultaneous read access to the same memory location and supports master/slave cascading for 32-bit+ bus expansion in real-time embedded control systems.

For engineers reviewing the IDT7025L17PF datasheet, IDT7025L17PF pinout, IDT7025L17PF application, or IDT7025L17PF equivalent, key selection considerations include its dual-port arbitration logic, on-chip semaphore signaling, BUSY flag behavior under M/S = H/L configuration, battery backup data retention at 2V, and compatibility with TTL-level 5V ±10% supply.

Technical Context

The IDT7025L17PF implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port, enabling concurrent read/write operations without external arbitration. Its on-chip port arbitration logic resolves contention via BUSY flag assertion and supports both address-match and chip-enable arbitration modes.

It integrates full hardware semaphore signaling across ports using eight dedicated flags addressed by A0–A2, with dedicated SEM, INT, and BUSY terminals. The device supports byte-selectable writes (UBL/LBL), interrupt flag generation (INTL/INTR), and automatic power-down via CE-controlled standby mode.

Key Specifications

Pinout & Package

Package: 84-pin Plastic Leaded Chip Carrier (PLCC), body size ≈ 1.15 in × 1.15 in × 0.17 in, lead pitch 0.05 in, RoHS-compliant green variant available.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT7025L17PF, the CY7C028V-15AXC offers faster access but requires voltage translation and lacks battery-retention support, while the R1EX24002AS0I#U0 provides enhanced reliability at the cost of speed and power efficiency - making IDT7025L17PF optimal for industrial real-time systems needing balanced performance, low standby, and robust data retention.

Availability

IDT7025L17PF is available at Aetrix Electronics and suitable for industrial motion control, real-time inter-processor communication, and redundant control system designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for IDT7025L17PF 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

Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and sensor signal conditioning ICs for communications, computing, and industrial markets.

IDT7025L17PF belongs to the IDT7025 family of high-speed dual-port SRAMs designed specifically for deterministic, low-latency memory sharing between heterogeneous processors, DSPs, and FPGAs in real-time embedded systems.

FAQ

What is the maximum operating frequency supported by the IDT7025L17PF?

The IDT7025L17PF has a maximum read cycle time (tRC) of 17 ns, corresponding to a theoretical maximum operating frequency of approximately 58.8 MHz for continuous sequential access. Actual system clock rate depends on bus protocol overhead, address setup, and output enable timing - all specified in the AC Electrical Characteristics table of the datasheet.

Does the IDT7025L17PF support battery backup operation, and what voltage is required?

Yes, the IDT7025L17PF supports battery backup operation with guaranteed data retention down to 2.0 V (VDR), as confirmed in Table 10 of the datasheet. At this voltage, typical data retention current is 100 µA, enabling multi-year retention from coin-cell or supercapacitor sources without active refresh.

How does the M/S pin affect BUSY signal behavior on the IDT7025L17PF?

When M/S = H, the IDT7025L17PF operates as Master: BUSYL/BUSYR become outputs that assert during port contention. When M/S = L, it operates as Slave: BUSYL/BUSYR become inputs used to stall writes until the Master releases the BUSY signal - enabling hardware-coordinated cascaded memory systems.

Can the IDT7025L17PF perform simultaneous reads from both ports to the same memory address?

Yes, the IDT7025L17PF features true dual-port memory cells that allow simultaneous reads from identical addresses on the left and right ports without contention, arbitration, or timing penalty - a core capability verified in the Functional Block Diagram and Truth Table I of the datasheet.

What package type is used for the IDT7025L17PF, and is it RoHS-compliant?

The IDT7025L17PF is packaged in an 84-pin Plastic Leaded Chip Carrier (PLCC), designated PLG84 in IDT documentation. It is a green (halogen-free, lead-free) part compliant with RoHS Directive 2011/65/EU, as explicitly stated in the "Green parts available" note on page 1 of the datasheet.