Renesas 70V3599S133BCGI

Overview

70V3599S133BCGI 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 133 MHz (7.5 ns cycle time), supports selectable pipelined or flow-through output modes, and features dual 3.3 V/2.5 V I/O voltage capability per port for mixed-voltage system interfacing - used in telecom line cards and packet buffer applications.

For engineers reviewing the 70V3599S133BCGI datasheet, 70V3599S133BCGI pinout, 70V3599S133BCGI application, or 70V3599S133BCGI equivalent, key selection criteria include its 133 MHz industrial-grade timing (–40°C to +85°C), JTAG IEEE 1149.1 compliance, dual chip enable depth expansion support, and byte-selectable 9-bit-wide I/O lanes with independent counter/repeat logic per port.

Technical Context

This device implements fully synchronous dual-port operation with registered address, data, and control inputs on both ports - delivering 1.7 ns setup and 0.5 ns hold times at 166 MHz. Its internal architecture includes separate clock domains, dual address strobes (ADSL/ADSR), and independent counter-enable (CNTENL/CNTENR) and repeat (REPEATL/REPEATR) logic for burst-address generation without external counters.

The memory supports two distinct output timing modes: pipelined (6 ns cycle, 3.6 ns clock-to-data) and flow-through (25 ns cycle, 15 ns clock-to-data), selected per port via PL/FTL and PL/FTR pins. Each port's I/O voltage (3.3 V or 2.5 V) is independently configured using OPTL/OPTR pins, with corresponding VDDQL/VDDQR supply rails.

Key Specifications

Pinout & Package

70V3599S133BCGI is packaged in a 208-pin fine-pitch Ball Grid Array (fpBGA) with 0.8 mm ball pitch and 15 mm × 15 mm body size. Pin functions are symmetrically distributed across left (L) and right (R) ports, each with dedicated clock, address, data I/O, control, and power terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-133AXC and IDT70V27L15PF8, the 70V3599S133BCGI uniquely combines industrial-grade 133 MHz timing, per-port 2.5 V/3.3 V I/O selection, hardware address counter/repeat, and IEEE 1149.1 JTAG - making it optimal for next-generation telecom and signal processing systems demanding flexibility, testability, and thermal resilience.

Availability

70V3599S133BCGI is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and radar signal processing applications requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 70V3599S133BCGI 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 semiconductor company specializing in high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.

The 70V3599S133BCGI belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for low-latency, deterministic memory sharing in real-time packet processing, baseband signal handling, and deterministic control systems.

FAQ

What is the maximum guaranteed operating frequency of the 70V3599S133BCGI?

The 70V3599S133BCGI is rated for 133 MHz operation across the full industrial temperature range (–40°C to +85°C), with a maximum clock cycle time of 7.5 ns in pipelined mode. This specification is production-tested and guaranteed - not a typical-only value - ensuring deterministic timing in mission-critical embedded systems.

Does the 70V3599S133BCGI support independent I/O voltage levels on its left and right ports?

Yes, the 70V3599S133BCGI supports independent I/O voltage selection per port via OPTL and OPTR pins. Each port can be configured for either 3.3 V (±150 mV) or 2.5 V (±100 mV) operation, with corresponding VDDQL and VDDQR supplies. This enables direct interfacing with heterogeneous logic families without external level shifters.

How does the counter enable and repeat functionality work in the 70V3599S133BCGI?

In the 70V3599S133BCGI, CNTENL/CNTENR enables automatic address incrementing on each clock edge, while REPEATL/REPEATR resets the internal counter to the last valid address loaded via ADSL/ADSR. This hardware-based addressing eliminates software overhead in burst transfers and ensures deterministic sequential access without CPU intervention.

What package options are available for the 70V3599S133BCGI, and which one is used for this part number?

The 70V3599S133BCGI is offered in three packages: 208-pin PQFP, 208-pin fpBGA, and 256-pin BGA. The "BCGI" suffix explicitly denotes the 208-pin fine-pitch Ball Grid Array (fpBGA) variant with 0.8 mm ball pitch and 15 mm × 15 mm footprint - optimized for high-density PCB layouts and thermal performance.

Is JTAG boundary-scan supported on the 70V3599S133BCGI, and what signals are required?

Yes, the 70V3599S133BCGI fully supports IEEE 1149.1 JTAG boundary-scan with dedicated TCK, TMS, TDI, TDO, and TRST pins. These signals enable in-system testability, fault isolation, and programming verification - critical for high-reliability telecom and industrial applications where post-assembly test coverage is mandatory.