Renesas 70V7519S133BF8

Overview

70V7519S133BF8 from Integrated Device Technology is a 256K × 36 (9 Mbit) synchronous bank-switchable dual-ported SRAM with independent left/right ports, 133 MHz operation (4.2 ns access), LVTTL-compatible 3.3 V core supply, and selectable 3.3 V or 2.5 V I/O interface per port - used in high-throughput packet buffering and real-time digital signal processing systems.

For engineers reviewing the 70V7519S133BF8 datasheet, 70V7519S133BF8 pinout, 70V7519S133BF8 application, or 70V7519S133BF8 equivalent, this page delivers verified timing parameters, bank-switching control logic, JTAG-compliant test interface details, and industrial-grade (-40°C to +85°C) thermal validation for deterministic dual-port memory subsystem design.

Technical Context

The 70V7519S133BF8 implements a true SRAM core architecture segmented into 64 independent 4K × 36 banks, enabling concurrent non-conflicting access by left and right ports via dedicated bank address pins (BA0–BA5 per port). Each port features fully synchronous operation with pipelined or flow-through output modes controlled by PL/FTL and PL/FTR signals.

It supports automatic power-down via dual chip enables (CE0/CE1), counter-enabled burst addressing with repeat functionality, and separate byte enables (BE0–BE3) for 9-bit byte granularity. JTAG boundary-scan compliance (IEEE 1149.1) is integrated for production testability.

Key Specifications

Pinout & Package

70V7519S133BF8 is housed in a 208-pin fine-pitch Ball Grid Array (fpBGA) package (BF208), with 15 mm × 15 mm footprint, 0.8 mm ball pitch, and 1.4 mm height. Power and ground balls are distributed across the array for low-inductance decoupling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-133AXC and AS7C3256A-133JCIN, the 70V7519S133BF8 uniquely supports mixed-voltage I/O per port and bank-select arbitration - critical for heterogeneous SoC interconnects and test equipment requiring flexible signal-level compatibility.

Availability

70V7519S133BF8 is available at Aetrix Electronics and suitable for telecom packet buffering, real-time digital signal processing, and industrial motion control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 70V7519S133BF8 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 70V7519S133BF8 belongs to IDT's high-speed synchronous dual-port SRAM product line, engineered specifically for deterministic, low-latency memory sharing between asynchronous processing blocks in networking, test, and embedded control systems.

FAQ

What is the maximum operating frequency of the 70V7519S133BF8?

The 70V7519S133BF8 is rated for 133 MHz operation, with guaranteed 4.2 ns clock-to-data (tCD2) timing in pipelined mode and 25 ns cycle time (tCYC1) in flow-through 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 to the BF208 fpBGA package variant.

Does the 70V7519S133BF8 support mixed-voltage I/O between its two ports?

Yes, the 70V7519S133BF8 supports independent I/O voltage selection per port: OPTL and OPTR pins configure left and right ports for either 3.3 V (±150 mV) or 2.5 V (±100 mV) operation. This allows one port to interface with a 3.3 V FPGA while the other connects to a 2.5 V ASIC - without external level shifters - and is confirmed in the device's DC operating conditions tables.

How does bank-switching prevent memory contention in the 70V7519S133BF8?

The 70V7519S133BF8 divides its 9 Mbit array into 64 independent 4K × 36 banks. Each port selects its target bank using dedicated BA0–BA5 pins. If BA0L–BA5L ≠ BA0R–BA5R, both ports access memory concurrently without conflict. If bank addresses match, both accesses are invalidated - a hardware-enforced arbitration mechanism documented in the functional description on page 19 of the datasheet.

What JTAG features are implemented in the 70V7519S133BF8?

The 70V7519S133BF8 implements full IEEE 1149.1 JTAG boundary-scan functionality with dedicated TDI, TDO, TCK, TMS, and TRST pins. It supports standard test access port (TAP) controller operations including instruction register scan, data register scan, and boundary-scan testing - enabling in-system verification of solder joints and interconnect integrity during manufacturing.

Is the 70V7519S133BF8 pin-compatible with other speed grades in the same family?

No, the 70V7519S133BF8 is not pin-compatible with faster variants like the 70V7519S200BF8. While all share the BF208 fpBGA package, the 200 MHz version requires VDDQ = 3.3 V on both ports and is only offered in the BC256 package per datasheet note on page 9. The BF208 package is exclusively assigned to the 133 MHz and 166 MHz industrial/commercial variants.