Renesas 7006S17JI

Overview

IDT7006S17JI from Integrated Device Technology (IDT) is a high-speed 16K × 8 dual-port static RAM with true independent left/right port access, 17 ns maximum read cycle time (tRC), TTL-compatible 5V ±10% operation, and industrial temperature range (–40°C to +85°C). It supports simultaneous reads of the same memory location and integrates on-chip semaphore logic and BUSY arbitration for real-time inter-processor communication in embedded control systems.

For engineers reviewing the 7006S17JI datasheet, 7006S17JI pinout, 7006S17JI application, or 7006S17JI equivalent, key selection criteria include its 17 ns access timing, dual-port arbitration behavior (M/S-configurable master/slave mode), integrated semaphore flag support (8 flags via A0–A2), battery-backed data retention at 2V, and compatibility with 68-pin PGA packaging for legacy military/industrial designs.

Technical Context

The 7006S17JI implements fully asynchronous dual-port architecture with separate address, data, and control buses per port (14-bit address, 8-bit I/O), enabling concurrent read/write operations without external logic. Its on-chip arbitration logic resolves contention via BUSY flag assertion-either address-match or CE-driven-with priority set-up time (tAPS) of 5 ns.

It supports two distinct operational modes: RAM access (CE = VIL, SEM = VIH) and semaphore register access (CE = VIH, SEM = VIL), each with dedicated timing parameters (e.g., tSAA ≤ 17 ns, tSOP = 10 ns). The device uses CMOS process technology and features TTL-level input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and push-pull BUSY/INT outputs.

Key Specifications

Pinout & Package

The 7006S17JI is packaged in a 68-pin ceramic Pin Grid Array (PGA), with 4 VCC pins (pins 1, 2, 67, 68), 5 GND pins (pins 8, 23, 39, 47, 64), and fully segregated left/right port signals including dual 14-bit address buses (A0L–A13L / A0R–A13R), dual 8-bit I/O buses (I/O0L–I/O7L / I/O0R–I/O7R), and independent control lines (CEL/CER, R/WL/R/WR, OEL/OER, BUSYL/BUSYR, INTL/INTR, SEML/SEMR, M/S).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C024AV-15AXC and IDT70V25S15PF8, the 7006S17JI uniquely delivers 5 V TTL compatibility, M/S-configurable arbitration, and 68-pin PGA packaging-making it irreplaceable in fielded industrial/military systems requiring drop-in upgrades and proven thermal reliability.

Availability

7006S17JI is available at Aetrix Electronics and suitable for real-time industrial PLCs, avionics data exchange modules, test equipment controllers, military radar signal processors, and legacy military computing platforms requiring stable component supply across extended product lifecycles.

Supply support for 7006S17JI 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) was a fabless semiconductor company specializing in timing, memory interface, RF, and sensor solutions before its acquisition by Renesas Electronics in 2019.

The IDT7006 family was designed specifically for deterministic, low-latency inter-processor communication in harsh-environment embedded systems-emphasizing hardware arbitration, battery backup, and military-grade packaging.

FAQ

What is the maximum operating speed of the 7006S17JI?

The 7006S17JI has a maximum read cycle time (tRC) of 17 ns, supporting up to approximately 58.8 MHz sustained read throughput per port. This timing is guaranteed over the full industrial temperature range (–40°C to +85°C) and 5.0 V ±10% supply, with address access time (tAA) and chip enable access time (tACE) also rated at ≤17 ns. The device does not require a clock signal, operating fully asynchronously.

Does the 7006S17JI support battery backup operation?

Yes, the 7006S17JI supports battery backup operation with guaranteed data retention at VCC = 2.0 V across all temperature ranges. In data retention mode, ICCDR is specified at ≤4000 µA (military/industrial) and ≤1500 µA (commercial), enabling long-term storage during main power loss. The 7006S17JI retains full 128 Kbit content without refresh, making it suitable for fail-safe applications like avionics and industrial controllers.

How does the M/S pin configure master/slave operation in the 7006S17JI?

When M/S = HIGH, the 7006S17JI operates as a master: BUSYL and BUSYR become output signals that assert during port contention. When M/S = LOW, it operates as a slave: BUSYL and BUSYR become inputs, allowing external BUSY signals from a master device to gate writes. This configuration enables cascaded 16-bit-or-wider memory systems without external arbitration logic-exactly as implemented in the 7006S17JI's reference designs.

What are the key timing differences between RAM access and semaphore access on the 7006S17JI?

RAM access requires CE = VIL and SEM = VIH, with tRC ≤17 ns and tAA ≤17 ns. Semaphore access requires CE = VIH and SEM = VIL, using the same address/data bus but with distinct timing: tSAA ≤17 ns and tSOP = 10 ns. Critically, semaphore writes update one of eight flags (selected by A0–A2), and tSWRD = 5 ns ensures rapid flag-read-after-write-enabling efficient lock-free synchronization between ports in the 7006S17JI.

Which package type is used by the 7006S17JI, and what are its mechanical characteristics?

The 7006S17JI uses a 68-pin ceramic Pin Grid Array (PGA) package (part code PLG68), measuring approximately 1.18 in × 1.18 in × 0.16 in. It features 4 VCC and 5 GND pins for robust power distribution, and pin 1 is marked with an index notch. This hermetic ceramic PGA construction provides superior thermal conductivity, moisture resistance, and mechanical stability-meeting MIL-PRF-38535 Class B requirements for high-reliability military and aerospace deployments of the 7006S17JI.