Renesas 70V27L15PF/2703

Overview

70V27L15PF/2703 from Integrated Device Technology is a high-speed 3.3V 32K × 16 dual-ported static RAM with true simultaneous access to the same memory location, 15 ns max read cycle time (tRC), 660 µW typical standby power, and industrial temperature support (–40°C to +85°C). It serves as a stand-alone 512-kbit dual-port SRAM or master/slave pair in 32-bit+ bus systems for real-time interprocessor communication.

For engineers reviewing the 70V27L15PF/2703 datasheet, 70V27L15PF/2703 pinout, 70V27L15PF/2703 application, or 70V27L15PF/2703 equivalent, key selection considerations include port arbitration timing (tAPS = 5 ns), BUSY flag behavior under M/S = VIH/VIL configuration, semaphore flag update pulse (tSOP = 10 ns), and LVTTL-compatible 3.3V ±0.3V single-supply operation.

Technical Context

The 70V27L15PF/2703 implements fully asynchronous dual-port architecture with independent left/right address, control, and I/O buses-enabling concurrent read/write operations without external logic. Its on-chip arbitration logic resolves contention via address-match or chip-enable priority, with BUSY flags asserting push-pull outputs (not tri-state) to block conflicting writes.

It supports semaphore signaling across ports using A0–A2-addressed flags written via I/O0 and read across all 16 I/O lines, and integrates master/slave select (M/S) to configure BUSY as output (VIH) or input (VIL), enabling scalable multi-device memory expansion with no layout changes required for cascaded configurations.

Key Specifications

Pinout & Package

70V27L15PF/2703 is housed in a 100-pin Thin Quad Flatpack (TQFP) with 0.5 mm pitch, body size 14 mm × 14 mm × 1.4 mm. All VDD pins require local decoupling; all VSS pins must be connected to ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C028V-15AC and R1EX24032ASAS-15, the 70V27L15PF/2703 uniquely delivers industrial-grade temperature support, sub-milliwatt standby, and configurable master/slave arbitration-making it the sole choice for robust, low-power, multi-processor embedded systems requiring hardware-enforced memory coherency.

Availability

70V27L15PF/2703 is available at Aetrix Electronics and suitable for real-time interprocessor communication, industrial PLC memory expansion, and avionics data acquisition units requiring stable component supply across extended lifecycle programs.

Supply support for 70V27L15PF/2703 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), now part of Renesas Electronics, designs high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.

The IDT70V27 family was engineered specifically for deterministic, low-latency interprocessor communication-delivering hardware arbitration, semaphore support, and master/slave scalability in 3.3V dual-port SRAMs for mission-critical embedded systems.

FAQ

What is the maximum operating speed of the 70V27L15PF/2703?

The 70V27L15PF/2703 supports a maximum read cycle time (tRC) of 15 ns and address access time (tAA) of 15 ns, enabling operation at up to 66.7 MHz in burst-read scenarios. This speed is guaranteed over the full industrial temperature range (–40°C to +85°C) with 3.3 V ±0.3 V supply, and applies to both ports independently under asynchronous conditions.

Does the 70V27L15PF/2703 support true simultaneous access to the same memory address?

Yes, the 70V27L15PF/2703 features true dual-ported memory cells that permit simultaneous read/write operations to the identical memory location across left and right ports. Hardware arbitration-via BUSY flag assertion and tAPS timing-ensures data integrity without software intervention or external logic.

How does the M/S pin affect BUSY functionality in the 70V27L15PF/2703?

When M/S = VIH, the 70V27L15PF/2703 operates as a master: BUSYL and BUSYR are push-pull outputs that assert low to block conflicting writes. When M/S = VIL, it operates as a slave: BUSYL and BUSYR become inputs that must be driven low by an external master to inhibit writes-enabling hierarchical arbitration in multi-device systems.

What is the standby power consumption of the 70V27L15PF/2703?

The 70V27L15PF/2703 achieves 660 µW typical standby power (ISB3) when both ports are fully disabled with CMOS-level inputs (CE > VDD − 0.2 V, all controls at rail). This ultra-low quiescent draw is enabled by its optimized CMOS process and dual chip-enable architecture-critical for battery-backed or energy-constrained industrial systems.

Can the 70V27L15PF/2703 be used in master/slave configurations for wider data buses?

Yes, the 70V27L15PF/2703 supports seamless 32-bit or wider bus expansion using master/slave cascading. One device is configured as master (M/S = VIH) to drive BUSY outputs; others as slaves (M/S = VIL) to accept BUSY inputs. No external logic is required-address and control signals align directly across devices for error-free, full-speed operation.