Renesas 70V3589S133DRGI8

Overview

70V3589S133DRGI8 from IDT (now Renesas) is a high-speed 128K × 36-bit synchronous dual-port SRAM with true dual-port architecture enabling simultaneous read/write access to the same memory location from independent left and right ports. It operates at 133MHz (7.5ns cycle time), supports selectable pipelined or flow-through output modes, and features dual 3.3V/2.5V I/O voltage capability per port for mixed-voltage system interfacing - used in telecom line cards, network packet buffers, and FPGA co-processor memory subsystems.

For engineers reviewing the 70V3589S133DRGI8 datasheet, 70V3589S133DRGI8 pinout, 70V3589S133DRGI8 application, or 70V3589S133DRGI8 equivalent, key selection criteria include simultaneous port access timing, JTAG IEEE 1149.1 compliance, industrial temperature support (–40°C to +85°C), 208-pin fpBGA package compatibility, and byte-selectable 9-bit-wide I/O control for burst-mode data transfers.

Technical Context

This device implements fully synchronous operation on both ports with registered address, data, and control inputs - delivering 1.7ns setup and 0.5ns hold times at 166MHz. Its internal architecture includes dual address counters with repeat and enable features, self-timed write logic, and separate byte-enable registers per port for precise 9-bit granularity control across four I/O groups (I/O0–8, 9–17, 18–26, 27–35).

The memory core uses true dual-port static RAM cells with independent clock domains (CLKL/CLKR), and supports Dual Cycle Deselect (DCD) in pipelined mode. Each port's I/O voltage (3.3V or 2.5V) is independently selected via OPTL/OPTR pins, with corresponding VDDQL/VDDQR power rails, while the core remains fixed at 3.3V (±150mV).

Key Specifications

Pinout & Package

208-pin fpBGA (fine-pitch Ball Grid Array), body size 15mm × 15mm × 1.4mm, 0.8mm ball pitch. All VDD pins require 3.3V supply; VDDQL/VDDQR must match OPTL/OPTR logic level (3.3V if VIH, 2.5V if VIL). A16 is no-connect for this variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-133BZI and AS7C3256A-133JCIN, the 70V3589S133DRGI8 uniquely supports per-port I/O voltage selection and IEEE 1149.1 JTAG - critical for mixed-signal systems and high-assurance test coverage, while its 208-pin fpBGA offers superior density over PQFP alternatives.

Availability

70V3589S133DRGI8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and avionics data buffering requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 70V3589S133DRGI8 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 (formerly Integrated Device Technology) is a global semiconductor leader specializing in high-performance memory, timing, and analog solutions for communications, computing, and industrial markets.

The IDT70V3589 product line was engineered for deterministic, low-latency dual-port memory in real-time embedded systems - emphasizing simultaneous access, mixed-voltage interoperability, and industrial reliability.

FAQ

What is the maximum guaranteed operating frequency of the 70V3589S133DRGI8?

The 70V3589S133DRGI8 is rated for 133MHz operation across the full industrial temperature range (–40°C to +85°C), with a maximum clock cycle time of 7.5ns in pipelined mode. This rating is validated per the AC Electrical Characteristics table in the official Renesas datasheet, and applies to both left and right ports independently under specified VDD and VDDQ conditions.

Does the 70V3589S133DRGI8 support independent I/O voltage selection on each port?

Yes, the 70V3589S133DRGI8 supports independent 3.3V or 2.5V I/O operation per port via dedicated OPTL and OPTR pins. When OPTL = VIH (3.3V), VDDQL must be 3.3V; when OPTL = VIL (0V), VDDQL must be 2.5V - same logic applies to OPTR/VDDQR. This enables direct interfacing with heterogeneous logic families without external level shifters.

What package type is used for the 70V3589S133DRGI8?

The 70V3589S133DRGI8 is packaged in a 208-pin fine-pitch Ball Grid Array (fpBGA) with 0.8mm ball pitch and 15mm × 15mm body size. Pin assignments and mechanical dimensions are documented in Renesas datasheet revision Feb.03.20, figure "BF208(6)" - distinct from the 256-pin BGA and 208-pin PQFP variants of the same family.

How does the pipelined vs. flow-through output mode affect timing in the 70V3589S133DRGI8?

In pipelined mode (PL/FTX = VIH), the 70V3589S133DRGI8 adds one clock-cycle latency to data output (tCD2 ≤ 4.2ns at 133MHz); in flow-through mode (PL/FTX = VIL), data appears combinatorially (tCD1 ≤ 15ns). The choice impacts system-level timing budgets: pipelined mode suits high-throughput streaming, while flow-through minimizes latency in tightly coupled processor-memory interfaces.

Is JTAG boundary-scan supported on the 70V3589S133DRGI8?

Yes, the 70V3589S133DRGI8 integrates full IEEE 1149.1-compliant JTAG test logic with dedicated TCK, TMS, TDI, TDO, and TRST pins. This enables boundary-scan testing, interconnect verification, and in-system programming support - confirmed in the Functional Block Diagram and Pin Names section of the Renesas datasheet for 70V3589S133DRGI8.