Renesas 70V3599S133DRGI

Overview

70V3599S133DRGI 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 high-bandwidth packet buffering in telecom line cards and FPGA co-processor memory subsystems.

For engineers reviewing the 70V3599S133DRGI datasheet, 70V3599S133DRGI pinout, 70V3599S133DRGI application, or 70V3599S133DRGI equivalent, key selection considerations include its 133MHz industrial-grade timing (–40°C to +85°C), dual VDDQ support per port, JTAG IEEE 1149.1 compliance, and depth-expansion-ready dual chip enable architecture for scalable memory arrays.

Technical Context

This device implements fully synchronous dual-port operation on both left and right interfaces, with all control, address, and data inputs registered on the rising edge of CLKL/CLKR. It supports self-timed write cycles and includes dedicated address strobe (ADSL/ADSR), counter enable (CNTENL/CNTENR), and repeat (REPEATL/REPEATR) logic for burst address generation without external counters.

The memory core uses true dual-port SRAM cells and integrates separate byte-enable registers (BE0–BE3 per port) for 9-bit granularity access. Pipelined output mode enables 4.2ns clock-to-data-out at 133MHz, while flow-through mode provides lower latency with 15ns tCD1 - both modes support Dual Cycle Deselect (DCD) for clean bus release.

Key Specifications

Pinout & Package

70V3599S133DRGI is packaged in a 208-pin fine-pitch Ball Grid Array (fpBGA) with 0.8mm ball pitch and 15mm × 15mm body size. Pin functions are symmetrically distributed across left (L) and right (R) ports, with dedicated clock, address, data I/O, control, and power/ground balls.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-133AXC and AS7C3256B-133JCIN, the 70V3599S133DRGI uniquely delivers per-port 2.5V/3.3V I/O selection, industrial temperature operation, and full JTAG testability - making it the only option for mixed-voltage, field-deployable, and production-testable dual-port memory systems.

Availability

70V3599S133DRGI is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and high-speed test equipment requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 70V3599S133DRGI 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 markets.

The 70V3599S133DRGI belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency, concurrent-access memory subsystems in telecom, defense, and industrial real-time systems.

FAQ

What is the maximum guaranteed operating frequency of the 70V3599S133DRGI?

The 70V3599S133DRGI 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 specification is production-tested and guaranteed - not a typical or commercial-only value. The device also supports 166MHz operation in commercial-grade versions (70V3599S166), but the 70V3599S133DRGI variant is strictly 133MHz-qualified for industrial use.

Does the 70V3599S133DRGI support independent I/O voltage levels on left and right ports?

Yes, the 70V3599S133DRGI supports fully independent I/O voltage selection per port via OPTL and OPTR pins. Setting OPTL to VIH (3.3V) configures the left port for 3.3V I/O operation with VDDQL = 3.3V, while setting OPTR to VIL (0V) configures the right port for 2.5V I/O with VDDQR = 2.5V. This enables direct interfacing with heterogeneous logic families without external level shifters.

How does the address counter function in the 70V3599S133DRGI?

The 70V3599S133DRGI includes hardware address counters on both ports, controlled by CNTENL/CNTENR and REPEATL/REPEATR. When CNTENX is asserted low, the counter advances on each CLKX rising edge. REPEATX resets the counter to the last valid address loaded via ADSX - allowing automatic burst addressing after initialization. This eliminates need for external counter logic in DMA or streaming applications.

What package options are available for the 70V3599S133DRGI?

The 70V3599S133DRGI is offered exclusively in a 208-pin fine-pitch Ball Grid Array (fpBGA) package (package code: BF208), with 0.8mm ball pitch and 15mm × 15mm body size. While the datasheet references PQFP and 256-pin BGA variants for the broader 70V3599/89 family, the DRGI suffix specifically denotes the fpBGA configuration - confirmed by Renesas' official ordering information and packaging documentation.

Is JTAG boundary-scan supported on the 70V3599S133DRGI?

Yes, the 70V3599S133DRGI fully supports IEEE 1149.1 JTAG boundary-scan with dedicated TCK, TMS, TDI, TDO, and TRST pins. This enables comprehensive in-system testability including pin interconnect verification, stuck-at-fault detection, and visibility into internal register states - critical for high-reliability telecom and industrial PCB assemblies.