Renesas 70V7599S133BC

Overview

70V7599S133BC from Integrated Device Technology is a high-speed 128K × 36 (4 Mbit) synchronous bank-switchable dual-ported SRAM with independent left/right ports, 133 MHz operation (7.5 ns clock cycle), pipelined or flow-through output modes, and selectable 2.5 V/3.3 V I/O interface per port. It enables concurrent memory access in packet buffering, network switching, and real-time video processing systems.

For engineers reviewing the 70V7599S133BC datasheet, 70V7599S133BC pinout, 70V7599S133BC application, or 70V7599S133BC equivalent, key selection criteria include dual-port bank-switching control, JTAG IEEE 1149.1 compliance, 208-pin fpBGA package compatibility, and industrial temperature support (–40°C to +85°C) with 3.3 V core and configurable I/O voltage.

Technical Context

This device implements a true synchronous SRAM core-not a traditional dual-port architecture-enabling deterministic timing with 1.5 ns address setup and 0.5 ns hold at 133 MHz. Each port has dedicated bank address pins (BA0–BA5), allowing user-directed bank selection across 64 independent 2K × 36 banks.

It supports full synchronous operation on both ports with self-timed write, counter enable/repeat functionality for burst addressing, and dual chip enables (CE0/CE1) for seamless depth expansion without external logic. The OPT pin per port independently configures I/O voltage (2.5 V or 3.3 V), while VDD remains fixed at 3.3 V.

Key Specifications

Pinout & Package

70V7599S133BC is packaged in a 208-pin fine-pitch Ball Grid Array (fpBGA), body size ≈15 mm × 15 mm × 1.4 mm, 0.8 mm ball pitch. All VDD pins require 3.3 V supply; VDDQ pins must match OPT pin logic level (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 CY7C1362BV33-133BZI and AS7C3256B-133JCIN, the 70V7599S133BC uniquely delivers per-port I/O voltage flexibility, hardware address counter with repeat, and bank-switching arbitration - making it optimal for mixed-voltage, high-throughput, deterministic embedded memory subsystems.

Availability

70V7599S133BC is available at Aetrix Electronics and suitable for network switching, real-time video processing, radar signal buffering, and industrial motion control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 70V7599S133BC 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 70V7599S product line targets high-bandwidth, low-latency dual-port memory applications in networking infrastructure and real-time embedded systems where deterministic access and flexible voltage interfacing are critical.

FAQ

What is the maximum operating frequency of the 70V7599S133BC?

The 70V7599S133BC is rated for 133 MHz operation, corresponding to a 7.5 ns clock cycle time in pipelined mode. This speed grade is validated for both commercial (0°C to +70°C) and industrial (–40°C to +85°C) temperature ranges, and applies when VDDQ is configured for 3.3 V operation via the OPT pin.

Does the 70V7599S133BC support mixed-voltage operation between its two ports?

Yes, the 70V7599S133BC supports independent I/O voltage selection per port: OPTL sets the left port's VDDQL (2.5 V or 3.3 V), and OPTR sets the right port's VDDQR. This allows 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 bank-switching prevent memory access conflicts in the 70V7599S133BC?

The 70V7599S133BC uses BA0–BA5 pins on each port to select one of 64 banks. If both ports attempt simultaneous access to the same bank, neither access is valid and data corruption may occur. The architecture requires software coordination - ensuring BA0L–BA5L ≠ BA0R–BA5R - to guarantee safe concurrent operation.

What is the purpose of the CNTEN and REPEAT signals in the 70V7599S133BC?

CNTEN enables the internal address counter on each port; when asserted, the counter advances on every clock edge regardless of CE or BE states. REPEAT resets the counter to the last address loaded via ADS - enabling efficient burst reads/writes without CPU intervention. Both signals operate independently per port.

Is JTAG boundary-scan supported on the 70V7599S133BC, and what standard does it comply with?

Yes, the 70V7599S133BC integrates a fully compliant IEEE 1149.1 JTAG TAP controller with TMS, TCK, TDI, TDO, and TRST pins. This enables boundary-scan testing of PCB interconnects and in-system debugging of memory subsystems - critical for high-reliability industrial and telecom designs.