Renesas 7014S25PF

Overview

IDT7014S25PF from Renesas Electronics is a high-speed 4K × 9 dual-port static RAM with true asynchronous dual-port architecture, 25 ns maximum read cycle time (tRC), TTL-compatible 5 V ±10% operation, and 9-bit bidirectional I/O per port-designed for real-time data buffering in telecom line cards where simultaneous independent access to shared memory is required.

For engineers reviewing the IDT7014S25PF datasheet, IDT7014S25PF pinout, IDT7014S25PF application, or IDT7014S25PF equivalent, key selection considerations include its 64-pin TQFP package, commercial temperature range (0°C to +70°C), absence of on-chip arbitration logic, and support for parity-enabled 9-bit data paths in deterministic low-latency inter-processor communication systems.

Technical Context

The IDT7014S25PF implements fully asynchronous dual-port operation: each port (Left and Right) has independent address (A0L–A11L / A0R–A11R), control (R/WL/OEL / R/WR/OER), and 9-bit I/O (I/O0L–I/O8L / I/O0R–I/O8R) pins, enabling concurrent reads or writes without BUSY signaling. No internal arbitration circuitry exists-simultaneous writes to the same location are undefined.

It uses standard-power CMOS technology with typical active power consumption of 150 mA at 25 ns speed grade and 5 V supply, supporting TTL-level input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and guaranteed output drive (VOH ≥ 2.4 V at –4 mA, VOL ≤ 0.4 V at +4 mA). All VCC and GND pins require external decoupling per layout guidelines.

Key Specifications

Pinout & Package

Package: 64-pin thin quad flatpack (TQFP), body size 14 mm × 14 mm × 1.4 mm, lead finish RoHS-compliant (Green, SnAgCu).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV25 and AS7C34098B-25JCIN, the IDT7014S25PF offers native 5 V operation with proven reliability in telecom infrastructure, while maintaining pin-compatible TQFP layout and deterministic 25 ns timing - making it optimal for sustaining legacy 5 V dual-port memory designs without voltage translation or thermal derating compromises.

Availability

IDT7014S25PF is available at Aetrix Electronics and suitable for telecom line card buffering, DSP co-processing, industrial PLC I/O mapping, and legacy bus bridge interface applications requiring stable component supply and long-term obsolescence mitigation.

Supply support for IDT7014S25PF 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

Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and infrastructure markets.

The IDT7014S25PF belongs to Renesas' legacy dual-port SRAM product line, originally developed by Integrated Device Technology (IDT) and optimized for deterministic, low-latency inter-processor communication in 5 V systems prior to industry-wide migration to 3.3 V.

FAQ

What is the operating temperature range supported by the IDT7014S25PF?

The IDT7014S25PF is specified for commercial temperature operation only: 0°C to +70°C ambient. It is not qualified for industrial –40°C to +85°C use. This limitation is explicitly stated in the ordering information and AC electrical characteristics tables, where 25 ns speed grade is marked "Commercial Only." Designers requiring wider temperature range must select alternate speed grades like IDT7014S20 (Com'l & Ind).

Does the IDT7014S25PF include on-chip arbitration logic for simultaneous write conflicts?

No, the IDT7014S25PF does not include on-chip arbitration logic. Its functional description explicitly states it "lacks the chip enable feature of CMOS Dual Ports" and warns that "simultaneous write operations to the same memory location" result in undefined behavior because "there is no on-chip arbitration circuitry to resolve write priority." External hardware or firmware coordination is mandatory to prevent data corruption.

What package type and dimensions does the IDT7014S25PF use?

The IDT7014S25PF uses a 64-pin thin quad flatpack (TQFP) package designated PNG64, with physical dimensions of 14 mm × 14 mm × 1.4 mm. Pin 1 orientation is marked by a dot on the package, and the body conforms to JEDEC MO-220 standards. This differs from the PLCC variant (PLG52) used in other IDT7014S speed grades.

Can the IDT7014S25PF operate with a 3.3 V supply?

No, the IDT7014S25PF requires a 5 V ±10% supply (4.5 V to 5.5 V) and is not rated for 3.3 V operation. Its DC electrical characteristics table specifies VCC min/max as 4.5 V/5.5 V, and input thresholds (VIH/VIL) are defined relative to 5 V TTL levels. Attempting 3.3 V operation will result in non-functional inputs and unreliable memory retention.

How many address and data lines does the IDT7014S25PF provide per port?

The IDT7014S25PF provides 12 address lines per port (A0L–A11L for left port; A0R–A11R for right port) and 9 bidirectional data lines per port (I/O0L–I/O8L and I/O0R–I/O8R). This supports full 4K × 9 addressing (2¹² = 4096 locations) with optional parity handling on each independent data path.