Renesas 70V3569S6BC

Overview

70V3569S6BC from Integrated Device Technology is a high-speed 16K × 36-bit synchronous dual-port static RAM with pipelined output, 4.2 ns clock-to-data access (max), 7.5 ns cycle time (133 MHz), and independent 3.3 V or 2.5 V I/O voltage selection per port. It enables simultaneous read/write access to the same memory location in telecom packet buffers, network switch fabric controllers, and real-time DSP co-processing systems.

For engineers reviewing the 70V3569S6BC datasheet, 70V3569S6BC pinout, 70V3569S6BC application, or 70V3569S6BC equivalent, this page delivers verified timing parameters, validated package mapping to 208-pin PQFP, confirmed dual-port counter/ADS control behavior, and real-world interface compatibility with LVTTL buses operating at 133 MHz burst throughput.

Technical Context

The 70V3569S6BC implements fully synchronous dual-port operation with edge-triggered registers on all address, data, and control inputs-enabling 1.8 ns setup and 0.7 ns hold times at 133 MHz. Its pipelined output mode introduces one-cycle latency for deterministic timing closure in high-frequency bus architectures.

Each port supports independent voltage configuration via OPTL/OPTR pins, allowing mixed-voltage interfacing: one port at 3.3 V (VDDQ = 3.15–3.45 V) and the other at 2.5 V (VDDQ = 2.375–2.625 V), while core VDD remains fixed at 3.3 V. Address counter logic (CNTEN/CNTRST/ADSL/ADSR) operates independently per port and is asynchronous to CE/R/W state changes.

Key Specifications

Pinout & Package

70V3569S6BC is packaged in a 208-pin Plastic Quad Flatpack (PQFP), body size 28 mm × 28 mm × 3.5 mm, with 0.5 mm lead pitch. Pin assignment follows JEDEC MS-026AC standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-100AXC and AS7C3316PFS-10BIN, the 70V3569S6BC uniquely delivers 133 MHz pipelined operation with per-port voltage selection and integrated address counter - making it the only option supporting mixed-voltage, high-throughput streaming buffers without external glue logic.

Availability

70V3569S6BC is available at Aetrix Electronics and suitable for telecom infrastructure, network switch fabric, and real-time DSP co-processing applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 70V3569S6BC 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 fabless semiconductor company specializing in high-performance timing, memory interface, and RF power solutions for communications and computing markets.

The 70V3569S6BC belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for low-latency, deterministic memory access in packet processing, switch fabric, and real-time signal processing systems.

FAQ

What is the maximum operating frequency of the 70V3569S6BC?

The 70V3569S6BC supports a minimum clock cycle time of 7.5 ns, enabling guaranteed operation at 133 MHz in pipelined mode. This is validated for the S6 speed grade under commercial temperature conditions (0°C to +70°C) with proper signal integrity and power delivery.

Does the 70V3569S6BC support independent voltage operation on each port?

Yes, the 70V3569S6BC supports independent I/O voltage selection per port via OPTL and OPTR pins. Setting OPTL to VIH (3.3 V) configures the left port for 3.3 V operation, while setting OPTR to VIL (0 V) configures the right port for 2.5 V - enabling direct interfacing with mixed-voltage SoCs without level shifters.

How does the address counter function in the 70V3569S6BC?

The 70V3569S6BC provides per-port address counter logic controlled by CNTENL/CNTENR and CNTRSTL/CNTRSTR. When CNTEN = VIL, the internal counter advances on each rising CLK edge; CNTRST = active-low asynchronously resets the counter to address 0 - essential for frame-synchronized streaming applications.

What package type is used for the 70V3569S6BC?

The 70V3569S6BC is supplied in a 208-pin Plastic Quad Flatpack (PQFP) package, compliant with JEDEC MS-026AC. The body measures 28 mm × 28 mm × 3.5 mm with 0.5 mm lead pitch - compatible with standard surface-mount assembly processes and thermal management for industrial environments.

Can the 70V3569S6BC be used in depth-expanded memory configurations?

Yes, the 70V3569S6BC supports depth expansion using its dual chip-enable pair (CE0X/CE1X) per port. By cascading multiple devices with decoded CE signals, designers can construct wider or deeper memory arrays - e.g., 32K × 36 - without external address decoding logic or additional timing constraints.