Infineon Technologies CYD09S36V18-167BBXC

Overview

CYD09S36V18-167BBXC from Cypress Semiconductor is a 9-Mbit (256K × 36) synchronous true dual-port SRAM with independent 36-bit ports, 1.8 V/1.5 V core supply, and SDR operation up to 200 MHz. It supports pipelined or flow-through read latency modes, deterministic collision resolution, and dual chip enables for depth expansion in high-speed networking and packet buffering applications.

For engineers reviewing the CYD09S36V18-167BBXC datasheet, CYD09S36V18-167BBXC pinout, CYD09S36V18-167BBXC application, or CYD09S36V18-167BBXC equivalent, key selection criteria include simultaneous dual-port bandwidth, configurable I/O standards (1.8 V LVCMOS/2.5 V LVCMOS), echo clocking support, burst counter capability, and JTAG boundary scan compliance.

Technical Context

This device implements a synchronous dual-port architecture with two independent address/data buses, each supporting 36-bit width and four byte enables. Collision detection logic provides deterministic flag output and first-busy-address readback on simultaneous access to identical memory locations.

Each port features selectable pipelined (2-cycle) or flow-through (1-cycle) read latency, variable impedance matching (VIM), echo clocks for timing margin improvement, and an integrated burst counter with mask/mirror registers and interrupt flags for sequential access acceleration.

Key Specifications

Pinout & Package

Package: 256-ball Fine-Pitch BGA (FBGA), 17 mm × 17 mm, 1.0 mm ball pitch, RoHS-compliant. Pinout conforms to FullFlex36 family layout per Document 38-06082 Rev. *S Figures 2 and 5–6.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV102436BLL-15BLI and MT29F2G01ABAGDWB-IT:C, CYD09S36V18-167BBXC uniquely delivers simultaneous 36-bit port access with hardware collision resolution, echo clocking for timing margin, and flexible I/O voltage selection - making it irreplaceable in high-throughput, low-latency dual-processor buffer applications.

Availability

CYD09S36V18-167BBXC is available at Aetrix Electronics and suitable for telecom packet buffering, industrial motion controller FIFOs, test equipment pattern memory, and medical imaging data pipelines requiring stable component supply across extended product lifecycles.

Supply support for CYD09S36V18-167BBXC 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-performance memory and programmable solutions for industrial, automotive, and communications markets, with emphasis on reliability and integration.

CYD09S36V18-167BBXC belongs to the FullFlex36 synchronous dual-port SRAM product line, engineered specifically for deterministic, high-bandwidth data exchange between asynchronous processors, FPGAs, or ASICs in real-time embedded systems.

FAQ

What is the maximum supported clock frequency for CYD09S36V18-167BBXC?

The device supports up to 200 MHz SDR operation on each port, verified under commercial temperature range (0°C to +70°C) with 1.8 V core supply and 1.8 V I/O. At 200 MHz, it achieves 14.4 Gbps aggregate bandwidth. Operation at 200 MHz requires adherence to specified setup/hold times and use of echo clocks for reliable capture in FPGA interfaces.

Does CYD09S36V18-167BBXC support JTAG boundary scan?

Yes, it fully complies with IEEE 1149.1 JTAG boundary scan. The TDI, TDO, TMS, TCK, and TRST pins are dedicated and functional per the pinout in Document 38-06082 Rev. *S. This enables PCB interconnect testing and in-system programming of configuration registers without requiring physical probe access.

How does deterministic collision resolution work in practice?

When both ports access the same memory location on the same clock edge, the device asserts BUSYL/BUSYR within one cycle and places the conflicting address on the address bus. The host reads this address to identify the collision source. No data corruption occurs - the winning port completes its access, and the losing port receives BUSY status, enabling software retry or priority arbitration.

Can the I/O voltage standard be changed dynamically during operation?

No. PORTSTD0L/1L and PORTSTD0R/1R are sampled at power-up reset and latched; they cannot be reconfigured without cycling VDD and asserting MRST. Once set, the I/O standard (e.g., 1.8 V LVCMOS) remains fixed until next power-on reset, ensuring signal integrity stability during runtime.