Renesas 71T75602S133PFGI

Overview

71T75602S133PFGI from IDT (now Renesas) is a 2.5V synchronous ZBT™ SRAM with 512K × 36-bit organization (18 Mbit), 200 MHz operation, 3.2 ns clock-to-data access, zero bus turnaround architecture, and pipelined outputs - deployed in high-speed network packet buffers and telecom line cards.

For engineers reviewing the 71T75602S133PFGI datasheet, 71T75602S133PFGI pinout, 71T75602S133PFGI application, or 71T75602S133PFGI equivalent, key selection criteria include burst mode support (linear/interleaved), individual byte write control (BW1–BW4), JTAG IEEE 1149.1 compliance, industrial temperature range (–40°C to +85°C), and TQFP-100 packaging.

Technical Context

The 71T75602S133PFGI implements a fully synchronous, rising-edge-triggered interface with registered address, data, and control paths. Its internal burst counter enables 4-word interleaved or linear bursts initiated by ADV/LD, while LBO selects burst order statically.

ZBT™ operation eliminates dead cycles between read/write transitions via internally synchronized output buffer enable and single R/W control. The device supports depth expansion using three chip enables (CE1, CE2, CE2) and retains data in ZZ sleep mode with gated clock and guaranteed retention.

Key Specifications

Pinout & Package

Packaged in JEDEC-standard 100-pin thin quad flatpack (TQFP), 14 mm × 20 mm body, 0.5 mm pitch. Pinout validated per PKG100 configuration for 512K × 36 mode.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1315KV18 and AS7C331024B, the 71T75602S133PFGI delivers higher bandwidth via ZBT™ and burst pipelining, supports industrial temperature operation, and integrates JTAG - making it optimal for new high-speed telecom and defense designs requiring deterministic latency and testability.

Availability

71T75602S133PFGI is available at Aetrix Electronics and suitable for network packet buffers, telecom line cards, and radar signal processing requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 71T75602S133PFGI 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), now part of Renesas Electronics, is a fabless semiconductor company specializing in high-performance timing, memory, and interface solutions for communications and computing infrastructure.

The 71T75602S133PFGI belongs to IDT's ZBT™ synchronous SRAM product line, engineered specifically for zero-latency bus turnaround in high-throughput packet-processing and baseband subsystems.

FAQ

What is the memory organization and total capacity of the 71T75602S133PFGI?

The 71T75602S133PFGI is configured as 512K × 36 bits, delivering 18,874,368 total bits (18 Mbit) of synchronous SRAM. This organization supports 36-bit parallel data paths ideal for wide-bus applications such as network processors and DSP co-processors. It does not support 1M × 18 mode - that configuration applies to the pin-compatible 71T75802 variant.

Does the 71T75602S133PFGI support burst read and write operations?

Yes, the 71T75602S133PFGI supports 4-word burst operations in both linear and interleaved sequences, controlled by the LBO pin. Burst mode is initiated by asserting ADV/LD = HIGH after an initial address load, and the internal counter advances automatically - enabling efficient sequential access without repeated address setup.

What package type and pin count does the 71T75602S133PFGI use?

The 71T75602S133PFGI uses a JEDEC-standard 100-pin thin quad flatpack (TQFP) package, measuring 14 mm × 20 mm with 0.5 mm lead pitch. This PKG100 footprint is explicitly documented for the 512K × 36 configuration and includes dedicated pins for JTAG, byte write enables, and burst control signals.

How does the ZBTTM feature improve system performance in the 71T75602S133PFGI?

The ZBTTM (Zero Bus Turnaround) feature in the 71T75602S133PFGI eliminates idle cycles when switching between read and write operations. By synchronizing output buffer enable internally and using a single R/W pin, the device achieves back-to-back access - increasing effective bus utilization by up to 30% in mixed-access memory workloads typical in packet buffering.

Is the 71T75602S133PFGI compatible with industrial temperature requirements?

Yes, the 71T75602S133PFGI is rated for industrial temperature operation from –40°C to +85°C, as confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables. This qualification makes it suitable for deployment in outdoor telecom equipment, industrial automation controllers, and defense electronics where ambient thermal stability is critical.