Renesas 7006S17PFI

Overview

7006S17PFI from IDT is a high-speed 16K × 8 true dual-port static RAM with independent left/right ports, 17 ns maximum access time (commercial grade), TTL-compatible 5 V ±10% supply, and on-chip semaphore/arbitration logic for concurrent multi-processor memory sharing in real-time control systems.

For engineers reviewing the 7006S17PFI datasheet, 7006S17PFI pinout, 7006S17PFI application, or 7006S17PFI equivalent, key selection considerations include simultaneous read capability, BUSY/INT flag timing, master/slave cascading support, and industrial temperature operation (–40°C to +85°C) with 20 ns max access in industrial grade variants.

Technical Context

The 7006S17PFI implements fully asynchronous dual-port architecture with separate address, data, and control buses per port, enabling concurrent read/write operations-including simultaneous reads of the same location-without external arbitration logic. Its on-chip arbitration resolves contention via BUSY flag assertion and supports semaphore signaling using A0–A2 address lines to access eight shared flags.

It features two distinct operational modes: RAM mode (CE = VIL, SEM = VIH) and semaphore mode (CE = VIH, SEM = VIL), with dedicated INTL/INTR and BUSYL/BUSYR signals for inter-port notification and priority resolution. The M/S pin configures the device as master (BUSY output) or slave (BUSY input) in cascaded 16-bit+ systems.

Key Specifications

Pinout & Package

7006S17PFI is housed in a 64-pin thin quad flatpack (TQFP, package code PNG64), measuring 14 mm × 14 mm × 1.4 mm, with exposed thermal pad and standard 0.5 mm lead pitch. All VCC and GND pins must be individually decoupled per manufacturer layout guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C024AV-15AXC and AS7C3256A-15JC, the 7006S17PFI uniquely integrates hardware semaphore and BUSY arbitration in a 5 V, 8-bit dual-port SRAM-reducing system-level complexity and eliminating timing-critical external logic for real-time inter-processor communication.

Availability

7006S17PFI is available at Aetrix Electronics and suitable for real-time multi-processor communication, digital signal processing buffering, and industrial PLC memory expansion requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 7006S17PFI 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, RF, and sensor solutions, now part of Renesas Electronics.

The 7006S17PFI belongs to IDT's legacy dual-port SRAM product line, designed specifically for deterministic, low-latency memory sharing between heterogeneous processors in aerospace, defense, and industrial control systems.

FAQ

What is the maximum operating temperature range supported by the 7006S17PFI?

The 7006S17PFI is rated for industrial temperature operation from –40°C to +85°C. While the "17" suffix denotes 17 ns commercial-grade speed, the "PFI" package variant confirms industrial qualification per the datasheet's temperature grading table. This makes the 7006S17PFI suitable for harsh-environment applications such as factory automation controllers and outdoor communications equipment where ambient thermal stability is critical.

Does the 7006S17PFI support battery backup operation, and what is the minimum retention voltage?

Yes, the 7006S17PFI supports battery backup operation with guaranteed data retention down to 2.0 V VCC, as specified in the "Data Retention Characteristics" section of the datasheet. This feature allows the device to maintain valid memory contents during main power interruption, provided the backup supply meets the 2 V minimum and leakage current limits (≤4000 µA at military temp). The 7006S17PFI does not require external circuitry to enable this mode.

How does the M/S pin affect BUSY signal behavior in the 7006S17PFI?

The M/S pin configures the 7006S17PFI as either master (M/S = HIGH) or slave (M/S = LOW). In master mode, BUSYL and BUSYR are push-pull outputs that assert during port contention. In slave mode, BUSYL and BUSYR become inputs-allowing cascaded devices to coordinate arbitration without external logic. This dual-role capability is essential when expanding data width beyond 8 bits using multiple 7006S17PFI devices in master/slave topology.

Can the 7006S17PFI perform simultaneous reads from both ports to the same memory address?

Yes, the 7006S17PFI supports true simultaneous reads from both ports to the same memory location without conflict or timing penalty. This capability is explicitly stated in the "Features" section and enabled by its true dual-ported memory cell architecture. Unlike pseudo-dual-port or pipelined SRAMs, the 7006S17PFI requires no arbitration or delay for concurrent reads-making it ideal for applications like mirrored diagnostics or parallel instruction fetch.

What package type is used for the 7006S17PFI, and are there any layout-critical pin assignments?

The 7006S17PFI uses a 64-pin thin quad flatpack (TQFP) with package code PNG64. Layout-critical assignments include five VCC pins (2, 17, 33, 49, 64) and four GND pins (3, 18, 34, 50), all requiring individual 0.1 µF ceramic decoupling close to the pin. Pin 1 is I/O2L; pin 64 is VCC. The device has no NC pins in this package-every pin has defined functionality per the "Pin Configurations" diagram.