Renesas 71T75802S150PFG

Overview

71T75802S150PFG from Renesas Electronics is a 2.5V synchronous ZBT™ SRAM with 512K × 36-bit (18-Mbit) organization, 200 MHz operation (3.2 ns clock-to-data access), zero bus turnaround architecture, and pipelined burst outputs. It serves as high-speed buffer memory in network packet processors and telecom line cards requiring deterministic latency and seamless read/write transitions.

For engineers reviewing the 71T75802S150PFG datasheet, 71T75802S150PFG pinout, 71T75802S150PFG application, or 71T75802S150PFG equivalent, key selection criteria include ZBT™ burst timing compliance, TQFP-100 package compatibility, 2.5V I/O supply (VDDQ) support, industrial temperature range (–40°C to +85°C), and JTAG IEEE 1149.1 test interface integration.

Technical Context

The 71T75802S150PFG implements a fully synchronous, clock-edge-triggered architecture with pipelined input and output registers. Its ZBT™ core eliminates dead cycles between consecutive reads and writes by overlapping address/control latching and data transfer phases - enabled via ADV/LD-controlled burst counter and internally synchronized OE.

Burst sequencing (linear or interleaved) is selected statically via LBO pin, while four-word bursts are executed using internal address incrementing. The device supports individual byte write control (BW1–BW4), three chip enables (CE1/CE2/CE2) for depth expansion, and IEEE 1149.1-compliant boundary scan with optional TRST reset.

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 IDT71T75802 PKG100 drawing (Rev 6.42).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1315KV18-200BZI and AS7C331024B-20JIN, the 71T75802S150PFG delivers superior deterministic latency (3.2 ns vs. ≥4.5 ns), integrated burst control, and JTAG testability - making it optimal for next-generation telecom and defense signal processing where timing predictability is mandatory.

Availability

71T75802S150PFG is available at Aetrix Electronics and suitable for network packet processors, telecom line cards, baseband processors, and radar signal processing systems requiring stable component supply, long-term lifecycle support, and industrial temperature qualification.

Supply support for 71T75802S150PFG 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 communications markets.

The 71T75802S150PFG belongs to Renesas' high-performance ZBT™ SRAM product line, engineered specifically for low-latency, burst-oriented buffering in infrastructure-grade networking and signal processing applications.

FAQ

What is the maximum operating frequency of the 71T75802S150PFG?

The 71T75802S150PFG is rated for 200 MHz operation, delivering a 5 ns clock cycle time and 3.2 ns clock-to-data access. This performance is validated across the full industrial temperature range (–40°C to +85°C) and 2.5 V ±5% supply conditions. The 200 MHz specification applies specifically to the 71T75802 variant, including the 71T75802S150PFG part number.

Does the 71T75802S150PFG support both 512K × 36 and 1M × 18 memory configurations?

Yes, the 71T75802S150PFG supports both configurations. In 512K × 36 mode, it uses A0–A18 address lines and provides 36-bit data I/O (I/O0–I/O31 plus I/OP1–I/OP4). In 1M × 18 mode, it uses A0–A19 and provides 18-bit data I/O (I/O0–I/O15 plus I/OP1–I/OP2), with unused pins configured as NC. Configuration is determined by system address decoding and pin strapping per datasheet Table 25a/b.

How does the ZBTTM feature eliminate dead cycles in the 71T75802S150PFG?

The ZBTTM (Zero Bus Turnaround) feature in the 71T75802S150PFG eliminates dead cycles by allowing immediate transition between read and write operations without bus idle time. This is achieved through separate input/output registers, pipelined control, and ADV/LD-driven burst counter - enabling the next access to begin on the same clock edge that completes the prior one. No external OE timing control is needed.

What is the function of the ADV/LD pin in the 71T75802S150PFG?

The ADV/LD pin in the 71T75802S150PFG controls burst address generation: when sampled LOW at the rising CLK edge (with chip enabled), it loads a new external address into the internal register; when sampled HIGH, it advances the internal burst counter to generate the next sequential address. This enables fully pipelined burst reads/writes with minimal control overhead.

Is JTAG boundary scan supported on the 71T75802S150PFG, and which pins are used?

Yes, the 71T75802S150PFG supports IEEE 1149.1-compliant boundary scan. Pins TMS (pin 38), TDI (pin 39), TCK (pin 43), TDO (pin 42), and optional TRST (pin 41) are dedicated for JTAG. All five pins are routed to the TQFP-100 package and internally pulled - TMS/TDI/TCK/TRST to VDD, TDO to VSS - ensuring robust test initialization without external biasing.