Renesas 70V3389S6BC

Overview

70V3389S6BC from Integrated Device Technology is a high-speed 64K × 18-bit synchronous dual-port static RAM with pipelined output, 12 ns clock cycle time (83.3 MHz), and true simultaneous access on independent left/right ports. It supports selectable 3.3 V or 2.5 V I/O interfaces per port via OPTL/OPTR pins, operates across commercial temperature range (0°C to +70°C), and delivers 9.6 Gbps aggregate bandwidth in depth-expanded systems.

For engineers reviewing the 70V3389S6BC datasheet, 70V3389S6BC pinout, 70V3389S6BC application, or 70V3389S6BC equivalent, key selection criteria include pipelined read latency (6 ns max), dual-voltage I/O flexibility, counter-enable address sequencing, and 256-pin BGA package compatibility with industrial-grade timing-critical memory subsystems.

Technical Context

The 70V3389S6BC implements fully synchronous dual-port architecture with register-controlled address, data, and control inputs clocked on the rising edge of CLKL/CLKR. Its self-timed write pulse decouples internal write timing from clock edges, enabling minimal cycle time without external timing constraints.

Each port features independent chip enables (CE0X/CE1X), byte enables (UBX/LBX), address strobe (ADSX), counter enable (CNTENX), and reset (CNTRSTX), allowing concurrent read/write operations-including pipelined reads with one-cycle latency-and seamless depth expansion without external logic.

Key Specifications

Pinout & Package

70V3389S6BC is housed in a 256-pin Ball Grid Array (BC256/BCG256) package with 1.0 mm ball pitch and 17 mm × 17 mm body size. All VDD pins require 3.3 V supply; VDDQL/VDDQR must match OPTL/OPTR voltage selection (3.3 V if OPT = VIH, 2.5 V if OPT = VIL); all VSS pins connect to ground.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-12BZXI and AS7C362000B-12TIN, the 70V3389S6BC uniquely combines 2.5 V/3.3 V per-port I/O selection, pipelined 6 ns read latency, and hardware address counter - making it optimal for high-throughput, mixed-voltage, burst-oriented memory subsystems.

Availability

70V3389S6BC is available at Aetrix Electronics and suitable for video frame buffering, network packet processing, digital signal processing, and industrial motion control requiring stable component supply and long-term production continuity.

Supply support for 70V3389S6BC 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

Integrated Device Technology (IDT), now part of Renesas Electronics, is a semiconductor company specializing in timing, memory interface, RF, and sensor solutions for communications, computing, and industrial markets.

The 70V3389S6BC belongs to IDT's high-speed synchronous dual-port SRAM product line, engineered for deterministic, low-latency memory access in real-time embedded systems demanding concurrent read/write capability and flexible voltage interfacing.

FAQ

What is the maximum operating frequency of the 70V3389S6BC?

The 70V3389S6BC supports a maximum clock frequency of 83.3 MHz, derived from its 12 ns clock cycle time (tCYC2). This timing is guaranteed across the commercial temperature range (0°C to +70°C) and applies to both left and right ports independently when operated within specified voltage and loading conditions.

Does the 70V3389S6BC support mixed-voltage operation between its two ports?

Yes, the 70V3389S6BC supports independent I/O voltage selection per port: OPTL configures the left port for either 3.3 V or 2.5 V signaling, and OPTR does the same for the right port. This allows one port to interface with a 3.3 V FPGA while the other connects to a 2.5 V ASIC - without external level shifters.

How does the address counter function in the 70V3389S6BC?

The 70V3389S6BC includes dedicated CNTENL/CNTRSTL and CNTENR/CNTRSTR inputs to control an internal 16-bit address counter per port. When CNTENX = LOW, the counter advances on each CLKX rising edge; CNTRSTX asynchronously resets it to address 0. This enables efficient burst-mode sequential access without external address generation logic.

What package type is used for the 70V3389S6BC?

The 70V3389S6BC uses a 256-pin Ball Grid Array (BGA) package, specifically the BC256 or BCG256 variant, with 1.0 mm ball pitch and 17 mm × 17 mm body dimensions. This package supports high-density routing and thermal performance required for sustained high-speed operation.

Is the 70V3389S6BC pin-compatible with other speed grades in the same family?

Yes, the 70V3389S6BC shares identical pinout and package with other speed variants (e.g., 70V3389S4BC, 70V3389S5BC) in the 70V3389 family. All versions use the same 256-pin BGA footprint and electrical interface - enabling drop-in replacement for timing margin optimization or cost/performance trade-offs.