Renesas 7005S15PF8

Overview

7005S15PF8 from IDT is a high-speed 8K × 8 dual-port static RAM with true independent left/right ports, 15 ns maximum read cycle time (commercial grade), TTL-compatible 5 V ±10% supply, and integrated hardware semaphore/arbitration logic for inter-processor communication in real-time embedded systems.

For engineers reviewing the 7005S15PF8 datasheet, 7005S15PF8 pinout, 7005S15PF8 application, or 7005S15PF8 equivalent, this page delivers verified timing specs, master/slave port arbitration behavior, BUSY/INT signal timing, semiconductor-grade thermal range validation, and exact TQFP-64 package mapping - all confirmed against IDT's official 7005S/L datasheet Rev. 6.42.

Technical Context

The 7005S15PF8 implements fully asynchronous dual-port operation: both left and right ports support independent read/write access to any memory location without external logic. Its on-chip arbitration uses push-pull BUSY flags (not open-drain) and M/S pin-controlled master/slave configuration to resolve contention during simultaneous access to identical addresses.

Hardware semaphore signaling operates via dedicated SEM pins and I/O0–I/O7, with eight flag registers addressed by A0–A2; interrupt generation is triggered by writes to fixed addresses (e.g., 1FFF_H sets INTR). Data retention at 2 V is supported only in L-version variants - the S-version (including 7005S15PF8) does not provide battery backup mode.

Key Specifications

Pinout & Package

7005S15PF8 is housed in a 64-pin TQFP (PNG64) package with 0.5 mm pitch, requiring standard reflow profiles and PCB land pattern IPC-7351B SOIC64_TQFP64_14x14mm_P0.5mm. All VCC (pins 8, 23, 40, 49) and GND (pins 9, 24, 39, 64) must be decoupled locally.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C136-15VC and AS7C38097A-15TCN, the 7005S15PF8 uniquely integrates full port arbitration, semaphore registers, and push-pull BUSY/INT outputs in a drop-in TQFP-64 package - reducing system latency and eliminating discrete arbitration components required by alternatives.

Availability

7005S15PF8 is available at Aetrix Electronics and suitable for real-time dual-CPU communication, DSP co-processing, and industrial PLC memory expansion requiring stable component supply, long-term lifecycle support, and guaranteed commercial-temperature performance.

Supply support for 7005S15PF8 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 7005S15PF8 belongs to IDT's legacy dual-port SRAM product line, designed specifically for deterministic inter-processor communication in aerospace, industrial automation, and telecom infrastructure where hardware-enforced memory coherency is critical.

FAQ

What is the maximum operating temperature range for the 7005S15PF8?

The 7005S15PF8 is rated for commercial temperature operation only: 0°C to +70°C ambient. It is not qualified for industrial (−40°C to +85°C) or military ranges. This is explicitly defined in Table 5 of the IDT 7005S/L datasheet Rev. 6.42, where "7005S15" suffix denotes commercial-grade speed and temperature grading.

Does the 7005S15PF8 support battery backup or data retention below 5 V?

No, the 7005S15PF8 does not support battery backup or low-voltage data retention. Only the "L" version (e.g., 7005L15PF8) provides 2 V data retention capability. The "S" in 7005S15PF8 indicates standard power consumption and absence of retention mode - confirmed in the DC Electrical Characteristics tables (Table 9) and Features section of the datasheet.

How does the M/S pin affect BUSY signal behavior on the 7005S15PF8?

When M/S = HIGH, the 7005S15PF8 operates as a master: BUSYL and BUSYR are push-pull outputs that assert LOW during port contention. When M/S = LOW, it operates as a slave: BUSYL and BUSYR become inputs that must be driven externally to inhibit writes - as stated in Note 1 of the Pin Names table and Functional Block Diagram notes.

Can the 7005S15PF8 perform simultaneous reads from both ports to the same memory address?

Yes, the 7005S15PF8 supports true simultaneous reads to the same memory location from left and right ports - a core feature of its dual-port SRAM cell architecture. This is explicitly highlighted in the "Features" section ("True Dual-Ported memory cells which allow simultaneous reads of the same memory location") and validated in Truth Table I.

What package type and dimensions does the 7005S15PF8 use?

The 7005S15PF8 uses a 64-pin thin quad flatpack (TQFP) package, designated PNG64, with physical dimensions of 14 mm × 14 mm × 1.4 mm. This is documented in the "Pin Configurations" section (page 2), Note 3, and confirmed in the ordering information footnote referencing "PNG64(4)".