Cypress Semiconductor Corp CYD02S36VA-167BBC

Overview

CYD02S36VA-167BBC from Cypress Semiconductor is a 2-Mbit (64K × 36) synchronous, true dual-port SRAM with pipelined read/write operation, 167 MHz clock frequency, 4.4 ns clock-to-data access time, and 256-ball FBGA (17 mm × 17 mm) packaging. It enables simultaneous independent access to the same memory location by left and right ports-used in high-speed inter-processor communication, FPGA co-processing buffers, and real-time data exchange systems.

For engineers reviewing the CYD02S36VA-167BBC datasheet, CYD02S36VA-167BBC pinout, CYD02S36VA-167BBC application, or CYD02S36VA-167BBC equivalent, key selection considerations include dual-port arbitration timing, mailbox interrupt behavior, burst counter wrap control, JTAG boundary scan support, and 3.3 V I/O power domain compatibility with FPGA or ASIC host interfaces.

Technical Context

This device implements two fully independent synchronous ports sharing a single 64K × 36-bit memory array, each with dedicated address counters, byte enables (BE0–BE3), chip enables (CE0L/CE1L and CE0R/CE1R), and flow-through/pipelined mode selection via FTSEL. Internal write pulse generation is self-timed, decoupling cycle time from R/W signal duration.

The integrated mailbox mechanism uses addresses FFFE (left port mailbox) and FFFF (right port mailbox), with INTL/INTR flags asserted on cross-port writes and cleared on local reads. JTAG (TCK/TMS/TDI/TDO/TRST) supports IEEE 1149.1 boundary scan for system-level testability, while MRST provides asynchronous global reset of counters, mask registers, and interrupt flags.

Key Specifications

Pinout & Package

Package: 256-ball fine-pitch ball grid array (FBGA), 1-mm pitch, 17 mm × 17 mm body size, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT70V27L15PF8 and IS61WV102436BLL-167BLI, CYD02S36VA-167BBC delivers hardware-accelerated inter-processor synchronization via mailbox interrupts and autonomous burst addressing-reducing firmware complexity and improving determinism in real-time embedded systems.

Availability

CYD02S36VA-167BBC is available at Aetrix Electronics and suitable for high-speed inter-processor communication, FPGA-ASIC co-processing buffers, and telecom line card packet buffering requiring stable component supply across industrial temperature ranges and long-life production programs.

Supply support for CYD02S36VA-167BBC 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) is a fabless semiconductor company specializing in high-performance memory, PSoC programmable systems-on-chip, and USB/USB-C solutions for industrial, automotive, and communications markets.

CYD02S36VA belongs to the FLEx36™ family of synchronous dual-port SRAMs, engineered specifically for deterministic, low-latency data exchange between heterogeneous processors and programmable logic in real-time embedded systems.

FAQ

What is the function of the CNT/MSK pins?

CNT/MSKL and CNT/MSKR select between counter address mode and mask register readback mode on the respective port's address bus. When asserted, they enable reading the current burst counter value or mask register contents directly onto A[15:0], eliminating need for dedicated status registers or sideband control lines.

How does mailbox interrupt clearing work?

INTL is asserted LOW when the right port writes to address FFFE; it clears HIGH only when the left port performs a valid read from FFFE with at least one byte enable active. Similarly, INTR clears only on a right-port read from FFFF-ensuring interrupt state reflects actual mailbox consumption, not just write occurrence.

Can both ports operate at different clock frequencies?

No-CYD02S36VA-167BBC requires identical clock frequencies on CL and CR inputs. The device uses a single internal timing reference; mismatched clocks violate setup/hold timing and may cause metastability in arbitration logic or counter state transitions.

Is VCORE power required for this device?

No-VCORE pins are internally unconnected in CYD02S36VA. Per datasheet note 9, this FLEx36™ generation uses only VDDIO (3.3 V) and VSS; VCORE is reserved for next-generation FLEx36-E™ devices operating at 1.5 V or 1.8 V core voltage.