Renesas 70V3569S5BC8

Overview

70V3569S5BC8 from Integrated Device Technology is a high-speed 16K × 36-bit synchronous dual-port static RAM with pipelined output, 7.5 ns cycle time (133 MHz), true dual-port architecture enabling simultaneous read/write access to the same memory location, and independent 3.3 V or 2.5 V I/O voltage selection per port - deployed in high-bandwidth packet buffering for telecom line cards and network switches.

For engineers reviewing the 70V3569S5BC8 datasheet, 70V3569S5BC8 pinout, 70V3569S5BC8 application, or 70V3569S5BC8 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 rates.

Technical Context

The 70V3569S5BC8 implements fully synchronous operation on both ports with edge-triggered registers for address, data, byte enables, R/W, CE, and OE - eliminating asynchronous setup/hold dependencies except for OE. Its pipelined output mode introduces one-cycle latency between clock and valid data, enabling deterministic 4.2 ns clock-to-data-out (max) at 133 MHz.

Each port supports independent voltage configuration via OPTL/OPTR pins, allowing mixed-voltage operation (e.g., 3.3 V left port / 2.5 V right port). The integrated address counter with ADS strobe and CNTRST/CNTEN controls enables burst-mode sequential access without external sequencing logic.

Key Specifications

Pinout & Package

70V3569S5BC8 is packaged in a 208-pin Plastic Quad Flatpack (PQFP), body size 28 mm × 28 mm × 3.5 mm, 0.65 mm lead pitch, lead-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-133BZXI and AS7C331664B-133BIN, the 70V3569S5BC8 uniquely delivers industrial temperature support, per-port selectable I/O voltage, and hardware address counter - making it the only option among the three that eliminates external sequencing logic while maintaining 133 MHz throughput in harsh environments.

Availability

70V3569S5BC8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and FPGA-based embedded systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 70V3569S5BC8 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, designs high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.

The 70V3569S5BC8 belongs to IDT's high-speed synchronous dual-port SRAM product line, engineered specifically for deterministic, low-latency data buffering in multi-processor and packet-processing architectures.

FAQ

What is the maximum operating frequency of the 70V3569S5BC8?

The 70V3569S5BC8 supports a guaranteed 133 MHz operation (7.5 ns cycle time) in pipelined mode across the industrial temperature range (–40°C to +85°C), with clock-to-data valid (tCD2) specified at 5 ns maximum - enabling reliable high-throughput data exchange in telecom and test equipment designs.

Does the 70V3569S5BC8 support mixed-voltage operation between its two ports?

Yes, the 70V3569S5BC8 supports independent I/O voltage selection: OPTL configures the left port for either 3.3 V or 2.5 V operation, and OPTR does the same for the right port - allowing one port to interface with a 2.5 V FPGA while the other connects to a 3.3 V microcontroller without level shifters.

How does the address counter function in the 70V3569S5BC8?

The 70V3569S5BC8 includes a synchronous address counter per port controlled by CNTENL/CNTENR and CNTRSTL/CNTRSTR. When ADS = VIH and CNTEN = VIL, the counter advances on each rising CLK edge - enabling burst-mode sequential access without external address generation logic.

What package type is used for the 70V3569S5BC8?

The 70V3569S5BC8 is supplied in a 208-pin Plastic Quad Flatpack (PQFP) with 28 mm × 28 mm body and 0.65 mm lead pitch - a lead-free, RoHS-compliant package optimized for reflow assembly and thermal performance in dense networking PCBs.

Is the 70V3569S5BC8 pin-compatible with other speed grades in the same family?

No - the 70V3569S5BC8 (5 ns speed grade) shares the same 208-pin PQFP package and pinout with 70V3569S4BC8 (4.2 ns) and 70V3569S6BC8 (6 ns), but electrical timing parameters differ; PCB layout is interchangeable, though timing-critical designs must verify setup/hold margins against the selected speed grade.