Renesas 70V3599S133BF8

Overview

70V3599S133BF8 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, features dual chip enables for depth expansion, and delivers 12Gbps aggregate bandwidth. It is used in real-time packet buffering for telecom line cards.

For engineers reviewing the 70V3599S133BF8 datasheet, 70V3599S133BF8 pinout, 70V3599S133BF8 application, or 70V3599S133BF8 equivalent, key selection criteria include guaranteed 133MHz operation across industrial temperature (−40°C to +85°C), independent 2.5V/3.3V I/O voltage selection per port via OPT pins, JTAG IEEE 1149.1 compliance, and support for burst-mode unidirectional/bidirectional data flow with automatic power-down.

Technical Context

This device implements fully synchronous dual-port operation on both ports with registered address, data, byte enable, and control inputs-enabling minimal setup (1.7ns) and hold (0.5ns) times at 133MHz. Its internal architecture includes dual address counters with repeat and enable features, separate byte controls for 9-bit-wide data segments, and Dual Cycle Deselect (DCD) logic for pipelined mode stability.

The memory core uses true dual-port static RAM cells, not pseudo-dual-port or FIFO-based emulation. Each port has independent clock (CLKL/CLKR), read/write (R/WL/R/WR), output enable (OEL/OER), chip enables (CE0L/CE1L, CE0R/CE1R), and address strobe (ADSL/ADSR) signals, allowing asynchronous coordination between ports while maintaining full timing predictability.

Key Specifications

Pinout & Package

208-pin fpBGA (Fine-Pitch Ball Grid Array), 15mm × 15mm × 1.4mm body, 0.8mm ball pitch. All VDD pins require 3.3V ±150mV; VDDQL/VDDQR must match selected I/O voltage (2.5V ±100mV or 3.3V ±150mV) per port based on OPTL/OPTR logic level.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-133BZI and AS7C3256P-133JCIN, the 70V3599S133BF8 uniquely combines JTAG testability, per-port I/O voltage flexibility, and compact fpBGA packaging - making it optimal for space-constrained, mixed-voltage, high-reliability embedded systems requiring production test coverage.

Availability

70V3599S133BF8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and medical imaging systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 70V3599S133BF8 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 (formerly Integrated Device Technology, IDT) is a global semiconductor leader specializing in high-performance timing, memory, and connectivity solutions for communications, computing, and industrial markets.

The IDT70V3599 product line was designed specifically for high-bandwidth, low-latency dual-port memory applications in telecom line cards, radar systems, and real-time control architectures requiring deterministic access and industrial-grade reliability.

FAQ

What is the maximum guaranteed operating frequency of the 70V3599S133BF8 across its full industrial temperature range?

The 70V3599S133BF8 is guaranteed to operate at 133MHz (7.5ns cycle time) over the full industrial temperature range of −40°C to +85°C. This specification is validated per AC Electrical Characteristics Table 11 in the official datasheet and applies to both pipelined and flow-through output modes under specified supply and loading conditions.

Does the 70V3599S133BF8 support independent I/O voltage selection on its left and right ports?

Yes, the 70V3599S133BF8 supports independent I/O voltage selection per port via dedicated 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 operation with VDDQR = 2.5V - enabling true mixed-voltage system integration.

What package type and dimensions does the 70V3599S133BF8 use?

The 70V3599S133BF8 uses a 208-pin fine-pitch Ball Grid Array (fpBGA) package with a 15mm × 15mm body and 0.8mm ball pitch. The total height is 1.4mm. This package is distinct from the 208-pin PQFP and 256-pin BGA variants offered in the same family and is identified by the "BF8" suffix in the part number.

How does the Dual Cycle Deselect (DCD) feature function in the 70V3599S133BF8?

The Dual Cycle Deselect (DCD) feature in the 70V3599S133BF8 ensures robust deactivation of outputs in pipelined mode by requiring two consecutive clock cycles with chip enable disabled before entering high-impedance state. This prevents metastability and bus contention during depth-expanded multi-device configurations, especially when CE signals transition asynchronously relative to the clock.

Is JTAG boundary-scan supported on the 70V3599S133BF8, and which standard does it comply with?

Yes, the 70V3599S133BF8 fully supports JTAG boundary-scan through dedicated TCK, TMS, TDI, TDO, and TRST pins, and complies with IEEE Std. 1149.1-2013. This enables in-system test, interconnect verification, and programmable configuration without requiring physical probe access - critical for high-density telecom and industrial PCBs.