Renesas 7006S17JI8

Overview

7006S17JI8 from IDT is a high-speed 16K × 8 (131,072-bit) true dual-port static RAM with independent left/right ports, 17 ns maximum access time (commercial grade), TTL-compatible 5V ±10% supply, and on-chip semaphore/arbitration logic for inter-port synchronization in real-time embedded systems.

For engineers reviewing the 7006S17JI8 datasheet, 7006S17JI8 pinout, 7006S17JI8 application, or 7006S17JI8 equivalent, this device supports simultaneous asynchronous reads/writes to shared memory locations, provides BUSY/INT/SEM flags for conflict resolution, and enables master/slave cascading for 16-bit+ data bus expansion without external logic.

Technical Context

The 7006S17JI8 implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port-enabling concurrent read/write access to any memory location. Its on-chip arbitration logic resolves port contention via BUSY flag assertion and supports semaphore signaling using A0–A2 to select among eight dedicated flags.

It features automatic power-down via chip enable (CE), with active current of 170 mA (typ) and standby current as low as 10 mA (typ) under TTL-level inputs. The device operates across 0°C to +70°C and uses CMOS technology for reliable 5V operation with 2V data retention in battery-backup mode.

Key Specifications

Pinout & Package

7006S17JI8 is housed in a 68-pin Plastic Leaded Chip Carrier (PLCC, package code PLG68), with 4 corner pins designated as VCC (pins 1, 2, 67, 68) and 4 ground pins (pins 8, 23, 39, 44). All VCC and GND pins must be connected for stable operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C136-15VC and AS7C316000B-15JCIN, the 7006S17JI8 uniquely integrates hardware semaphore and BUSY arbitration in a 5V-compatible dual-port SRAM, eliminating external logic for real-time multi-processor memory sharing-making it irreplaceable in deterministic embedded systems requiring guaranteed conflict resolution.

Availability

7006S17JI8 is available at Aetrix Electronics and suitable for real-time digital signal processing, industrial PLC memory buffering, avionics display frame buffering, and medical imaging data pipeline applications requiring stable component supply, long-term obsolescence management, and traceable sourcing.

Supply support for 7006S17JI8 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 high-performance silicon solutions for communications, computing, and industrial markets.

The 7006S17JI8 belongs to IDT's legacy dual-port SRAM product line, engineered specifically for deterministic, low-latency memory sharing between heterogeneous processors, DSPs, and peripherals in mission-critical embedded systems.

FAQ

What is the maximum operating temperature range for the 7006S17JI8?

The 7006S17JI8 is rated for commercial temperature operation from 0°C to +70°C. It is not qualified for industrial (–40°C to +85°C) or military temperature ranges-those variants carry different suffixes (e.g., 7006S20JI, 7006S25JI). This specification ensures reliability in office, lab, and controlled industrial environments where ambient thermal stress remains within standard commercial limits.

Does the 7006S17JI8 support battery backup operation, and what voltage is required?

Yes, the 7006S17JI8 supports battery backup operation with guaranteed data retention down to 2.0 V (VDR = 2.0 V). In data retention mode, ICCDR is typically 100 µA (max 1500 µA) under commercial conditions. This allows integration with coin-cell or supercapacitor backup supplies to preserve memory contents during main power failure-critical for applications like programmable logic controllers and medical devices.

How does the M/S pin affect BUSY functionality on the 7006S17JI8?

When M/S = HIGH, the 7006S17JI8 configures as Master: BUSYL and BUSYR become push-pull outputs that assert during port contention. When M/S = LOW, it configures as Slave: BUSYL and BUSYR become inputs, allowing external BUSY signals from a Master device to gate local write operations. This enables hierarchical arbitration in multi-device systems without additional logic.

Can the 7006S17JI8 perform simultaneous reads from both ports to the same memory address?

Yes, the 7006S17JI8 supports true simultaneous reads from both ports to the exact same memory location without contention or delay. Its dual-port cell architecture guarantees coherent, glitch-free output on both I/O buses-enabling efficient data broadcasting, mirrored processing, or real-time monitoring use cases where consistency across domains is essential.

What package type is used for the 7006S17JI8, and are there thermal or mechanical notes?

The 7006S17JI8 uses a 68-pin Plastic Leaded Chip Carrier (PLCC, package code PLG68) with approximate dimensions of 0.95 in × 0.95 in × 0.17 in. It requires all four VCC (pins 1, 2, 67, 68) and four GND (pins 8, 23, 39, 44) pins to be properly decoupled. Thermal design must account for 850 mW typical active power dissipation, and reflow profiles must comply with IDT's PLCC moisture sensitivity level (MSL) requirements.