Renesas 7006L25PFG

Overview

7006L25PFG from IDT is a high-speed 16K × 8 dual-port static RAM with true independent left/right port access, 25 ns maximum read cycle time (tRC), 1 mW typical standby power, and TTL-compatible 5 V ±10% operation. It supports master/slave cascading for 16-bit+ bus expansion and operates across industrial temperature range (–40°C to +85°C) in a 64-pin TQFP package for real-time inter-processor communication systems.

For engineers reviewing the 7006L25PFG datasheet, 7006L25PFG pinout, 7006L25PFG application, or 7006L25PFG equivalent, this page delivers verified timing parameters (tAA = 25 ns, tACE = 25 ns), BUSY/INT/SEM arbitration logic behavior, battery backup data retention at 2 V, and precise TQFP pin mapping - all critical for deterministic dual-port memory integration in embedded control and military-grade avionics.

Technical Context

The 7006L25PFG implements fully asynchronous dual-port architecture with on-chip arbitration logic that resolves simultaneous access via BUSY flag assertion and semaphore signaling. Its left and right ports feature independent address decoders, I/O controls, and CE/OE/R/W enables, enabling concurrent reads from identical addresses without contention.

It integrates dedicated semaphore registers (addressed by A0–A2) with write-to-SEM and read-from-SEM modes controlled by SEM pin state, and supports interrupt generation (INTL/INTR) triggered by address-matched writes. The M/S pin configures BUSY as output (master) or input (slave), enabling hierarchical multi-device memory systems.

Key Specifications

Pinout & Package

7006L25PFG is housed in a 64-pin thin quad flatpack (TQFP) package, designated PNG64, with 0.5 mm lead pitch and exposed thermal pad. All VCC (pins 2, 17, 37, 49) and GND (pins 3, 4, 20, 33, 47) pins require low-inductance decoupling 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 CY7C136-25JC and AS7C31026B-25JC, the 7006L25PFG uniquely delivers hardware-enforced port arbitration, integrated semaphores, and true dual-port concurrency in a compact TQFP - reducing system-level complexity and qualification risk in safety-critical embedded designs.

Availability

7006L25PFG is available at Aetrix Electronics and suitable for real-time digital signal processing, avionics flight control systems, and industrial PLC communication gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 7006L25PFG 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, now part of Renesas Electronics.

The 7006L25PFG belongs to IDT's legacy dual-port SRAM product line, engineered specifically for deterministic inter-processor communication in military, aerospace, and industrial control systems demanding zero-contention memory access.

FAQ

What is the guaranteed maximum access time for 7006L25PFG under industrial temperature conditions?

The 7006L25PFG guarantees a maximum read cycle time (tRC) of 25 ns over the full industrial temperature range (–40°C to +85°C) with VCC = 5.0 V ±10%. This specification is production-tested and applies to both left and right ports independently, ensuring deterministic timing for real-time control loops without derating.

Does 7006L25PFG support battery backup operation, and what is the minimum retention voltage?

Yes, the 7006L25PFG supports battery backup operation with guaranteed data retention down to 2.0 V (VDR), as specified in Table 9. At VCC = 2 V, it maintains stored data with ICCDR ≤ 4000 µA (military/industrial grade), enabling seamless transition to auxiliary power during main supply interruption without data loss.

How does the M/S pin affect BUSY signal behavior in 7006L25PFG?

When M/S = VIH, BUSYL and BUSYR function as push-pull outputs asserting busy status to external devices; when M/S = VIL, BUSYL and BUSYR become inputs accepting busy signals from upstream masters. This configuration enables hierarchical daisy-chained arbitration in multi-device memory systems without external logic.

Can 7006L25PFG perform simultaneous reads from both ports to the same memory address?

Yes, the 7006L25PFG features true dual-port memory cells that allow simultaneous reads from identical addresses on left and right ports with no timing penalty or arbitration delay. This capability is fundamental to its architecture and is explicitly confirmed in the "Features" section of the datasheet.

What is the purpose of the SEM pin, and how does it interact with the 7006L25PFG memory array?

The SEM pin selects between RAM array access (SEM = VIH) and semaphore register access (SEM = VIL). When SEM = VIL, writes to I/O0–I/O7 target one of eight hardware semaphore flags addressed by A0–A2, enabling atomic resource locking; reads return flag state. This dual-mode operation eliminates need for external semaphores.