Renesas 71V3558S133PFGI

Overview

71V3558S133PFGI from Renesas is a 3.3V, 128K × 36-bit (4.5 Mbit) synchronous ZBT™ SRAM with zero bus turnaround, 133 MHz operation (7.5 ns clock-to-data), pipelined outputs, and 4-word burst capability. It features synchronous address/control/data registers, individual byte write enables (BW1–BW4), and three chip enables for depth expansion. Used in high-speed networking line cards requiring deterministic read/write interleaving without dead cycles.

For engineers reviewing the 71V3558S133PFGI datasheet, 71V3558S133PFGI pinout, 71V3558S133PFGI application, or 71V3558S133PFGI equivalent, key selection criteria include ZBT™ timing compliance, TQFP-100 package compatibility, industrial temperature support (–40°C to +85°C), and JTAG optional boundary scan integration for system-level testability.

Technical Context

The 71V3558S133PFGI implements a fully synchronous, clock-edge-triggered architecture where address, control, and data signals are registered on the rising edge of CLK. Its ZBT™ feature eliminates bus turnaround latency by enabling immediate read-after-write or write-after-read transitions without idle cycles.

It integrates an on-chip burst counter controlled by ADV/LD and LBO pins, supporting both linear and interleaved 4-word burst sequences. Output enable (OE) remains asynchronous, allowing dynamic output tri-state control independent of clock timing.

Key Specifications

Pinout & Package

Packaged in a JEDEC-standard 100-pin plastic thin quad flatpack (TQFP), 14 mm × 20 mm footprint, with exposed pad not specified. Pin functions validated per Renesas IDT71V3558 datasheet Rev. Aug.06.21.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous SRAM applications.

Compared with CY7C1355KV18-133BZC and AS7C33128PFSI-133BIN, the 71V3558S133PFGI uniquely delivers x36 width with integrated parity ports, industrial temperature rating, and ZBT™-optimized timing-making it the only choice for deterministic, high-reliability packet buffering in carrier-grade infrastructure.

Availability

71V3558S133PFGI is available at Aetrix Electronics and suitable for high-speed networking line cards, radar signal processors, telecom backplane interfaces, and packet classification engines requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 71V3558S133PFGI 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 is a global semiconductor leader delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, and communications markets.

The 71V3558S133PFGI belongs to Renesas' legacy IDT synchronous SRAM product line, engineered specifically for zero-latency, high-bandwidth memory interfacing in carrier-class networking and real-time signal processing systems.

FAQ

What is the maximum operating frequency supported by the 71V3558S133PFGI?

The 71V3558S133PFGI supports a maximum clock frequency of 133 MHz, corresponding to a 7.5 ns clock-to-data access time. This specification is guaranteed over the full industrial temperature range (–40°C to +85°C) and 3.3 V ±5% supply conditions, as verified in the Renesas IDT71V3558 datasheet Rev. Aug.06.21.

Does the 71V3558S133PFGI support burst read and write operations?

Yes, the 71V3558S133PFGI supports 4-word burst operations in both linear and interleaved sequences, selected via the LBO pin. Burst mode is initiated using the ADV/LD signal and reduces address bus overhead by 75% per transaction, directly improving effective bandwidth in cache-like applications.

What is the function of the ZZ pin on the 71V3558S133PFGI?

The ZZ pin on the 71V3558S133PFGI is a synchronous sleep mode input. When driven HIGH, it gates the internal clock and places the device in its lowest power consumption state while guaranteeing data retention. This feature is essential for power-aware designs such as portable radar subsystems or energy-efficient line cards.

How many chip enable signals does the 71V3558S133PFGI provide, and what are their polarities?

The 71V3558S133PFGI provides three chip enable signals: CE1 and CE2 are active-low, while CE2 is active-high. All three must be asserted simultaneously (CE1=L, CE2=L, CE2=H) to select the device. This configuration enables flexible depth expansion without external logic, a key advantage in multi-SRAM memory subsystems.

Is JTAG boundary scan supported on the 71V3558S133PFGI?

No, JTAG boundary scan is not supported on the 71V3558S133PFGI. The "S" suffix denotes the standard version without JTAG; only the "SA" variant includes IEEE 1149.1-compliant TMS, TDI, TCK, TDO, and optional TRST pins. For testability requirements, the SA version must be selected instead of the 71V3558S133PFGI.