Renesas 70V3569S6BC8

Overview

70V3569S6BC8 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 buffering, network switch fabric control tables, and real-time DSP data exchange.

For engineers reviewing the 70V3569S6BC8 datasheet, 70V3569S6BC8 pinout, 70V3569S6BC8 application, or 70V3569S6BC8 equivalent, this device supports depth expansion via dual chip enables, features counter-enabled burst addressing, and delivers 9.6 Gbps aggregate bandwidth in industrial-temperature (−40°C to +85°C) operation with full synchronous control on both ports.

Technical Context

The 70V3569S6BC8 implements true dual-port SRAM cells with fully registered address, data, and control inputs on both left and right ports-enabling minimal setup (1.8 ns) and hold (0.7 ns) times at 133 MHz. Its pipelined output mode introduces one-cycle latency for deterministic timing closure in high-frequency systems.

Each port supports independent I/O voltage configuration (3.3 V or 2.5 V) via dedicated OPTL/OPTR pins and corresponding VDDQL/VDDQR supplies, while the core VDD remains fixed at 3.3 V. Address counter logic (CNTEN/CNTRST) and byte-enable masking (BE0–BE3 per port) provide flexible burst and partial-write capability without external glue logic.

Key Specifications

Pinout & Package

70V3569S6BC8 is packaged in a 208-pin Plastic Quad Flatpack (PQFP) with 0.5 mm lead pitch and 28 mm × 28 mm body size. Pin assignments are defined for left (L) and right (R) ports with dedicated address, data, control, power, and option signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-133AXC and AS7C3316PFS-133BIN, the 70V3569S6BC8 uniquely delivers per-port 2.5 V/3.3 V I/O selection, pipelined 4.2 ns access, and integrated address counter-reducing PCB layer count, eliminating level shifters, and enabling deterministic burst transfers in space-constrained telecom modules.

Availability

70V3569S6BC8 is available at Aetrix Electronics and suitable for telecom infrastructure, network switching, DSP co-processing, and industrial automation applications requiring stable component supply across extended product lifecycles.

Supply support for 70V3569S6BC8 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 solutions for communications and computing markets.

The 70V3569S6BC8 belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency memory sharing between independent processors, ASICs, or FPGA subsystems in real-time networking and signal processing systems.

FAQ

What is the maximum operating frequency of the 70V3569S6BC8?

The 70V3569S6BC8 supports a maximum clock frequency of 133 MHz, corresponding to a 7.5 ns clock cycle time in pipelined mode. This specification is guaranteed across the industrial temperature range (−40°C to +85°C) and applies to both left and right ports simultaneously under specified supply and loading conditions.

Does the 70V3569S6BC8 support independent I/O voltage levels on each port?

Yes, the 70V3569S6BC8 supports independent I/O voltage selection per port: OPTL sets the left port's I/O voltage (3.3 V or 2.5 V), and OPTR sets the right port's I/O voltage. This requires corresponding VDDQL and VDDQR supplies at the selected levels, while the core VDD remains fixed at 3.3 V.

How does the address counter function in the 70V3569S6BC8?

The 70V3569S6BC8 includes an internal 14-bit address counter per port. When CNTEN is asserted low on the rising clock edge, the counter advances automatically. ADS (address strobe) overrides the counter to load an external address. CNTRST asynchronously resets the counter to address 0, enabling immediate access without pipeline delay.

What packaging options are available for the 70V3569S6BC8?

The 70V3569S6BC8 is offered in three packages: 208-pin PQFP (DRG208), 208-ball fpBGA (BF208), and 256-pin BGA (BC256). The "BC8" suffix in the part number 70V3569S6BC8 specifically denotes the 208-pin PQFP variant with industrial temperature rating and 6 ns speed grade.

What is the power consumption of the 70V3569S6BC8 in full standby mode?

In full standby mode (ISB3), where both ports are disabled with CMOS-level inputs held at valid logic thresholds, the 70V3569S6BC8 consumes 6 mA typical and 15 mA maximum current. This ultra-low standby current supports energy-efficient operation in always-on network infrastructure equipment.