Renesas 70V7519S133BC

Overview

70V7519S133BC from Integrated Device Technology is a high-speed 256K × 36 (9 Mbit) synchronous bank-switchable dual-ported SRAM with independent left/right ports, 133 MHz operation (4.2 ns access), industrial temperature support (–40°C to +85°C), and selectable 2.5V/3.3V I/O interface per port. It enables concurrent memory access in telecom packet buffers and real-time DSP data exchange.

For engineers reviewing the 70V7519S133BC datasheet, 70V7519S133BC pinout, 70V7519S133BC application, or 70V7519S133BC equivalent, key selection criteria include dual-port bank-switching architecture, pipelined/flow-through output mode selection, JTAG IEEE 1149.1 compliance, and 256-pin BGA package compatibility with depth expansion via dual chip enables.

Technical Context

This device implements a true SRAM core-not traditional dual-port-organized into 64 independent 4K × 36 banks, enabling user-controlled bank access via BA0–BA5 pins on each port. Conflicts occur only when both ports target identical banks simultaneously, requiring explicit bank address coordination.

It supports full synchronous operation on both ports with register-controlled inputs (address, control, data), delivering 5 ns cycle time at 200 MHz, 3.4 ns clock-to-data out in pipelined mode, and 1.5 ns setup/0.5 ns hold timing at 200 MHz. Self-timed write and separate byte enables (BE0–BE3 per port) optimize burst data transfers.

Key Specifications

Pinout & Package

70V7519S133BC is housed in a 256-pin BGA (package code BC256), with 17 mm × 17 mm footprint, 1.0 mm ball pitch, and 1.4 mm height. Power delivery includes dedicated VDD (3.3 V core), VDDQL/VDDQR (I/O supply), and multiple VSS balls for low-noise grounding.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-133BZI and AS7C3256B-133BIN, the 70V7519S133BC uniquely delivers bank-switching to eliminate arbitration overhead, per-port I/O voltage selection for mixed-signal integration, and JTAG for production testability - making it optimal for new high-performance telecom and avionics designs.

Availability

70V7519S133BC is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and avionics sensor fusion systems requiring stable component supply, long lifecycle support, and industrial temperature qualification.

Supply support for 70V7519S133BC 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 timing, memory interface, RF, and sensor signal conditioning ICs.

The 70V7519S product line was designed for high-bandwidth, low-latency dual-access memory applications in networking, communications, and real-time embedded systems - emphasizing bank-switching efficiency and mixed-voltage interoperability.

FAQ

What is the maximum operating frequency and access time for the 70V7519S133BC?

The 70V7519S133BC is rated for 133 MHz operation with a maximum access time of 4.2 ns. This specification applies to both commercial and industrial temperature ranges and is validated under conditions where VDDQ is set to 3.3 V (OPT pin = VIH). The device also supports 166 MHz operation in industrial grade, but that speed grade is not available in the BC256 package used by the 70V7519S133BC.

Does the 70V7519S133BC support independent I/O voltage levels on its two ports?

Yes, the 70V7519S133BC supports independent I/O voltage selection per port via the OPTL and OPTR pins. Setting OPTL to VIH configures the left port for 3.3 V I/O operation (requiring VDDQL = 3.3 V), while setting OPTR to VIL configures the right port for 2.5 V I/O operation (requiring VDDQR = 2.5 V). This enables direct interfacing with heterogeneous logic families without external level shifters.

How does bank-switching work in the 70V7519S133BC, and what happens during a bank conflict?

The 70V7519S133BC organizes its 9 Mbit array into 64 independent 4K × 36 banks. Each port selects a bank using its own BA0–BA5 pins. If both ports attempt to access the same bank simultaneously, neither access is valid: writes may corrupt data, and reads return invalid output. The architecture requires software or hardware coordination to ensure BA0L–BA5L ≠ BA0R–BA5R during concurrent operation.

What are the key timing advantages of pipelined versus flow-through output mode in the 70V7519S133BC?

In pipelined mode (PL/FTL = VIH), the 70V7519S133BC delivers 4.2 ns clock-to-data valid (tCD2) at 133 MHz - ideal for maximizing throughput in burst transfers. In flow-through mode (PL/FTL = VIL), output data appears with no pipeline delay, enabling deterministic, zero-latency reads critical for real-time control loops. Mode selection is per-port and static during operation.

Is JTAG boundary-scan supported on the 70V7519S133BC, and which standard does it comply with?

Yes, the 70V7519S133BC fully supports IEEE 1149.1 JTAG boundary-scan via dedicated TCK, TMS, TDI, TDO, and TRST pins. This enables production test coverage, in-system debugging, and verification of PCB interconnect integrity - particularly valuable in high-density BGA layouts where probe access is limited.