Renesas 70V7519S133DR

Overview

70V7519S133DR 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 (7.5 ns cycle time), industrial temperature range (–40°C to +85°C), and selectable 2.5V/3.3V I/O interface per port. It enables concurrent access to 64 independent 4K × 36 memory banks in telecom switching fabric and packet buffer applications.

For engineers reviewing the 70V7519S133DR datasheet, 70V7519S133DR pinout, 70V7519S133DR application, or 70V7519S133DR equivalent, key selection criteria include pipelined/flow-through output mode selection, bank-address-controlled memory arbitration, dual chip enable depth expansion, JTAG IEEE 1149.1 compliance, and low-power standby modes with CE0/CE1 control.

Technical Context

This device implements a true synchronous SRAM core-not a traditional dual-port architecture-enabling deterministic timing with register-controlled address, data, and control inputs. Each port features independent clock, bank address (BA0–BA5), and byte enable (BE0–BE3) signals, allowing non-conflicting access to separate 4K × 36 banks.

Bank arbitration is user-directed via BA pins; simultaneous access to the same bank by both ports invalidates both operations. The counter-enable and repeat functions support burst address generation across bank boundaries, while PL/FTL and PL/FTR pins configure pipelined (3.4 ns tCD2) or flow-through (15 ns tCD1) output timing per port.

Key Specifications

Pinout & Package

70V7519S133DR is packaged in a 208-pin PQFP (Plastic Quad Flat Package), body size 28 mm × 28 mm × 3.5 mm, 0.65 mm lead pitch. All VDD pins require 3.3 V supply; VDDQL/VDDQR must match OPTL/OPTR logic level (2.5 V if OPT = VIL, 3.3 V if OPT = VIH).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-133BZXI and AS7C3256A-133JCIN, the 70V7519S133DR delivers unique bank-switchable arbitration, per-port voltage selection, and hardware address counter-critical for high-bandwidth, low-latency, mixed-voltage embedded systems where deterministic access and minimal external logic are design priorities.

Availability

70V7519S133DR is available at Aetrix Electronics and suitable for telecom switching fabric, network packet buffer, real-time signal processing, industrial PLC data exchange, and JTAG-testable embedded systems requiring stable component supply across extended temperature ranges.

Supply support for 70V7519S133DR 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 power management ICs for communications and computing infrastructure.

The 70V7519S product line was designed for high-bandwidth, low-latency dual-access memory applications in telecom, networking, and real-time embedded systems-emphasizing bank arbitration, mixed-voltage I/O, and JTAG testability.

FAQ

What is the maximum operating frequency and temperature range supported by the 70V7519S133DR?

The 70V7519S133DR supports up to 133 MHz operation across the full industrial temperature range of –40°C to +85°C. This speed grade is validated for both commercial and industrial grades, with timing parameters including 7.5 ns minimum clock cycle time (tCYC2) and 4.2 ns maximum clock-to-data valid (tCD2) in pipelined mode.

How does the bank-switchable architecture of the 70V7519S133DR differ from conventional dual-port SRAMs?

Unlike conventional dual-port SRAMs that rely on internal arbitration logic, the 70V7519S133DR uses a true SRAM core with user-directed bank selection via BA0–BA5 pins. Concurrent access to the same bank by both ports invalidates both operations-requiring explicit software/hardware coordination-but eliminates arbitration latency and guarantees deterministic timing behavior.

Can the left and right ports of the 70V7519S133DR operate at different I/O voltages simultaneously?

Yes. The 70V7519S133DR supports independent I/O voltage selection per port: OPTL sets the left port's interface to either 2.5 V (OPTL = VIL) or 3.3 V (OPTL = VIH), and OPTR does the same for the right port. Corresponding VDDQL and VDDQR supplies must match the selected voltage level, enabling mixed-voltage system integration.

What is the function of the PL/FTL and PL/FTR pins on the 70V7519S133DR?

PL/FTL and PL/FTR configure the output timing mode for the left and right ports respectively. When driven high (VIH), they enable pipelined output mode-introducing a 1-cycle latency but achieving faster clock-to-data valid (tCD2 = 4.2 ns @133 MHz). When driven low (VIL), they enable flow-through mode-zero-cycle latency but longer tCD1 (15 ns @133 MHz)-suited for latency-critical reads.

Does the 70V7519S133DR support JTAG boundary-scan testing, and which pins are used?

Yes, the 70V7519S133DR fully supports IEEE 1149.1 JTAG boundary-scan. Required pins are TDI (pin A4), TDO (pin A3), TCK (pin T2), TMS (pin P3), and TRST (pin R3), all located on the PQFP package. These enable full visibility into I/O states and interconnect verification without requiring functional access to memory arrays.