Cypress Semiconductor Corp CYD02S36V-167BBC

Overview

CYD02S36V-167BBC from Cypress Semiconductor is a 2-Mbit (64K × 36) synchronous, true dual-port SRAM with pipelined operation, 3.3V supply, 167 MHz clock rate, and 256-ball FBGA (17 mm × 17 mm) package. It enables simultaneous independent read/write access to the same memory location across two ports, supports mailbox-based inter-port messaging, and delivers 4.4 ns clock-to-data access time for high-throughput data buffering in telecom line cards.

For engineers reviewing the CYD02S36V-167BBC datasheet, CYD02S36V-167BBC pinout, CYD02S36V-167BBC application, or CYD02S36V-167BBC equivalent, key selection criteria include dual-port arbitration behavior, burst counter wrap control via CNT/MSKL/R, byte-enable granularity (BE0–BE3 per port), JTAG boundary-scan compliance, and low-power standby current (55 mA typ.) under 3.3V operation.

Technical Context

The CYD02S36V-167BBC implements true dual-port architecture with fully independent left/right address, data, and control buses - each with dedicated clock (CL/CR), chip enables (CE0L/CE1L and CE0R/CE1R), byte enables (BE0–BE3), and R/W signals. Its pipelined output mode registers read data on clock edges to minimize cycle time, while internal self-timed write pulses decouple pulse width from external R/W duration.

Each port integrates a programmable 16-bit burst address counter with mask register, retransmit capability, and interrupt flag (CNTINTL/CNTINTR) triggered on unmasked counter wrap. Mailbox functionality uses upper two memory locations (FFFF and FFFE) for inter-port message passing, with INTL/INTR asserted asynchronously on write and cleared on read.

Key Specifications

Pinout & Package

256-ball FBGA (17 mm × 17 mm, 1-mm pitch) with VDDIO/VSS power distribution optimized for signal integrity across dual 36-bit data buses. Pin functions are strictly segregated per port (Left/Right), with no shared control lines except MRST, JTAG, and global power/ground.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CYD01S36V-167BBC and CYD04S36V-167BBC, the CYD02S36V-167BBC delivers optimal balance of capacity, speed, and pin count for mid-tier telecom and industrial controllers - avoiding over-provisioning of 4-Mbit density while exceeding the 1-Mbit limit for full-packet buffering at 10G line rates.

Availability

CYD02S36V-167BBC is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and medical imaging systems requiring stable component supply, long-lifecycle support, and guaranteed FBGA sourcing consistency.

Supply support for CYD02S36V-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) designs high-performance memory and programmable solutions for demanding embedded systems, with focus on reliability, signal integrity, and automotive-grade qualification.

The FLEx36™ family targets applications needing deterministic, low-latency dual-port memory - especially in networking, test equipment, and real-time control where asynchronous inter-processor communication and burst-addressed buffering are critical.

FAQ

What is the maximum supported clock frequency for CYD02S36V-167BBC?

The CYD02S36V-167BBC is rated for 167 MHz operation, corresponding to a 6 ns clock period. This maximum frequency is validated across commercial temperature range (0°C to +70°C) with 3.3V ±0.3V supply and specified load conditions. Exceeding this frequency may result in setup/hold violations on address or control inputs, leading to undefined read data or write corruption.

How does the mailbox interrupt function work between left and right ports?

The mailbox uses memory addresses FFFF (right-port mailbox) and FFFE (left-port mailbox). When the right port writes to FFFF, INTL asserts low; when the left port writes to FFFE, INTR asserts low. Each interrupt clears only when the owning port reads its respective mailbox location. No external pull-up is required - outputs are open-drain with internal weak pull-up.

Can CYD02S36V-167BBC operate with mixed voltage interfaces?

No. The device requires a single 3.3V supply for VDDIO and VTTL, with VCORE pins internally unused (NC). All I/Os - including JTAG, address, data, and control - are LVTTL-compatible and must be driven within 3.3V logic thresholds. Interfacing to 2.5V or 1.8V systems requires level-shifting circuitry on all signal groups.

Is JTAG boundary scan supported, and what pins are required?

Yes, CYD02S36V-167BBC implements IEEE 1149.1-compliant boundary scan. Required pins are TCK, TMS, TDI, TDO, and TRST (ball J15). Scan operations function independently of memory operation and do not require CE or R/W assertion. Boundary scan chain includes all I/O pins and internal logic, enabling net continuity verification in assembled PCBs.