Renesas 70V7519S200BCG

Overview

70V7519S200BCG from Integrated Device Technology is a high-speed 256K × 36 (9 Mbit) synchronous bank-switchable dual-ported SRAM with independent left/right ports, 200 MHz operation (5 ns cycle time), 3.4 ns clock-to-data-out in pipelined mode, and selectable 3.3 V or 2.5 V I/O interface per port. It enables concurrent memory access in telecom packet buffers and network switch fabric controllers.

For engineers reviewing the 70V7519S200BCG datasheet, 70V7519S200BCG pinout, 70V7519S200BCG application, or 70V7519S200BCG equivalent, this page delivers verified timing parameters, bank-switching control logic, JTAG-compliant test interface details, and industrial-grade (-40°C to +85°C) operation at 166 MHz - all specific to the BF208 fpBGA package variant.

Technical Context

The 70V7519S200BCG implements a true SRAM core organized into 64 independent 4K × 36 banks, enabling non-conflicting simultaneous access by left and right ports when bank addresses differ (BA0L–BA5L ≠ BA0R–BA5R). Bank selection is user-controlled via dedicated bank address pins, not internal arbitration logic.

It supports two output modes: pipelined (3.4 ns tCD2 @ 200 MHz) for burst throughput, and flow-through (10 ns tCD1) for low-latency deterministic reads. Each port features separate byte enables (BE0–BE3), counter enable (CNTEN), repeat address control (REPEAT), and asynchronous output enable (OE), with full JTAG IEEE 1149.1 support for boundary scan.

Key Specifications

Pinout & Package

70V7519S200BCG is housed in a 208-pin fine-pitch Ball Grid Array (BF208) package with 0.8 mm ball pitch, 15 mm × 15 mm footprint, and 1.4 mm height. Power delivery uses distributed VDD (core, 3.3 V ±150 mV) and dual VDDQ rails (port-selectable 3.3 V or 2.5 V) with dedicated ground (VSS) balls for noise isolation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1362BV33-200AXC and AS7C3256B-20JCIN, the 70V7519S200BCG uniquely delivers bank-switchable concurrency, per-port I/O voltage selection, and integrated address counter logic - reducing external component count and improving determinism in high-throughput embedded systems.

Availability

70V7519S200BCG is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and defense electronics requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.

Supply support for 70V7519S200BCG 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, specializes in high-performance timing, memory interface, and RF power solutions for communications and computing markets.

The 70V7519S200BCG belongs to IDT's high-speed synchronous dual-port SRAM product line, engineered for deterministic, low-latency memory access in packet-processing, switch fabric, and real-time control applications.

FAQ

What is the maximum operating frequency of the 70V7519S200BCG and under what conditions?

The 70V7519S200BCG operates up to 200 MHz in commercial temperature range (0°C to +70°C) with 3.3 V I/O supply (OPTL/OPTR = VIH). This speed grade is not available in industrial temperature range; for -40°C to +85°C operation, the device is rated at 133 MHz or 166 MHz depending on VDDQ configuration and package. The 200 MHz specification requires pipelined output mode (PL/FTL = VIH) and meets 5 ns cycle time and 3.4 ns clock-to-data-out timing.

How does bank-switching work in the 70V7519S200BCG and what happens during bank conflicts?

The 70V7519S200BCG divides its 9 Mbit array into 64 independent 4K × 36 banks, each selected by BA0L–BA5L (left port) or BA0R–BA5R (right port). When both ports assert identical bank addresses simultaneously, neither access completes successfully - writes may corrupt data and reads return invalid outputs. The architecture requires software or hardware coordination to ensure BA0L–BA5L ≠ BA0R–BA5R during concurrent operation.

Can the left and right ports of the 70V7519S200BCG operate at different I/O voltages?

Yes. The 70V7519S200BCG supports independent I/O voltage selection per port via OPTL and OPTR pins. Setting OPTL = VIH (3.3 V) and OPTR = VIL (0 V) configures the left port for 3.3 V LVTTL signaling and the right port for 2.5 V operation, with corresponding VDDQL and VDDQR supplies. This enables direct interfacing with heterogeneous FPGAs or ASICs operating at mixed voltage levels without level shifters.

What is the role of the CNTEN and REPEAT signals in the 70V7519S200BCG?

CNTEN enables automatic address increment on each clock cycle, allowing burst transfers without host address updates. REPEAT resets the internal counter to the last valid address loaded via ADS, enabling circular buffer behavior. Both functions operate independently per port and persist across CE deassertion - they are essential for DMA-like operations in networking and signal processing applications where CPU offload is critical.

Does the 70V7519S200BCG support JTAG boundary scan, and which pins are used?

Yes, the 70V7519S200BCG fully complies with IEEE 1149.1 JTAG. It uses dedicated pins TDI (pin A4), TDO (pin A1), TCK (pin T2), TMS (pin P3), and TRST (pin R3) for test access port (TAP) control. These pins support boundary scan testing, interconnect verification, and in-system programming diagnostics - critical for high-reliability telecom and aerospace PCB assemblies.