Renesas 7006S15JI

Overview

7006S15JI from IDT is a high-speed 16K × 8 dual-port static RAM with true independent left/right port access, 15 ns max read cycle time (commercial grade), TTL-compatible 5 V ±10% supply, and integrated on-chip semaphore and arbitration logic for inter-processor communication in real-time embedded systems.

For engineers reviewing the 7006S15JI datasheet, 7006S15JI pinout, 7006S15JI application, or 7006S15JI equivalent, this page delivers verified timing specs, master/slave BUSY flag behavior, industrial temperature support (–40°C to +85°C), and TQFP-64 package compatibility for deterministic memory coherency in dual-CPU designs.

Technical Context

The 7006S15JI implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port-enabling simultaneous reads from identical memory locations without contention. Its on-chip arbitration logic resolves port conflicts via BUSY flag assertion and supports semaphore signaling across eight flags addressed by A0–A2.

It uses CMOS high-performance fabrication for low active power (750 mW typ.) and includes automatic power-down via CE control. The device supports battery backup data retention at 2 V (IDT7006L variant), though the S-version prioritizes speed over ultra-low standby current.

Key Specifications

Pinout & Package

7006S15JI is supplied in a 64-pin thin quad flatpack (TQFP) package, designated PNG64, with body dimensions of 14 mm × 14 mm × 1.4 mm. All VCC and GND pins must be externally decoupled per datasheet 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 IDT70V25L15PF, the 7006S15JI uniquely combines 5 V TTL compatibility, integrated BUSY/semaphore logic, and 64-pin TQFP packaging-making it optimal for drop-in upgrades in legacy dual-CPU industrial controllers without layout changes.

Availability

7006S15JI is available at Aetrix Electronics and suitable for real-time dual-processor systems, industrial motion controllers, and military data acquisition units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 7006S15JI 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 high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.

The IDT7006 product line was engineered specifically for deterministic inter-processor communication, delivering hardware-accelerated memory coherency through integrated arbitration, semaphore, and BUSY signaling-targeting avionics, test equipment, and programmable logic controllers.

FAQ

What is the maximum operating temperature range supported by the 7006S15JI?

The 7006S15JI is rated for industrial temperature operation from –40°C to +85°C. This specification is validated per the datasheet's "Maximum Operating Temperature and Supply Voltage" table and applies to all AC and DC electrical characteristics within the specified 5.0 V ±10% supply range. It does not support military-grade –55°C to +125°C operation-that requires the 7006X20J or 7006X25J variants.

Does the 7006S15JI support battery backup data retention?

The 7006S15JI is the high-speed (S) variant and does not include battery backup data retention. That feature is exclusive to the low-power (L) variant-IDT7006L-which specifies 2 V data retention with typical ICCDR of 100 µA. The 7006S15JI retains standard SRAM behavior: data loss occurs immediately upon VCC dropout, and no internal circuitry supports backup voltage switching.

How does the M/S pin affect BUSY pin functionality in the 7006S15JI?

When M/S = VIH, the 7006S15JI operates as a master: BUSYL and BUSYR become push-pull outputs that assert during port contention. When M/S = VIL, it operates as a slave: BUSYL and BUSYR become inputs, allowing external arbitration signals to gate writes. This configuration is mandatory for cascading multiple 7006S15JI devices into wider memory systems using master/slave topology.

Can the 7006S15JI perform simultaneous reads from the same memory address on both ports?

Yes-the 7006S15JI features true dual-ported memory cells that permit concurrent reads from identical addresses on left and right ports without conflict, delay, or arbitration. This capability is explicitly confirmed in the "Features" section and enabled by independent sense amplifiers and bitline structures per port, eliminating the need for software coordination during non-destructive read operations.

What package type is used for the 7006S15JI, and are there alternative packages available?

The 7006S15JI is packaged in a 64-pin thin quad flatpack (TQFP), designated PNG64, with 14 mm × 14 mm body size and 0.5 mm lead pitch. While the broader IDT7006 family offers 68-pin PGA, PLCC, and quad flatpack variants, the 7006S15JI specifically ships only in the TQFP-64 package-no other package options exist for this speed/grade combination per IDT's ordering information.