Infineon Technologies CYFB0072V33L-133BGXI

Overview

CYFB0072V33L-133BGXI from Cypress Semiconductor is a 72-Mbit video frame buffer IC with ×36 organization, supporting independent read/write ports clocked up to 133 MHz, 3.3 V LVCMOS I/O, and flow-through mailbox register for cross-domain data bypass. It delivers 4.8 Gbps throughput and operates across industrial temperature (–40 °C to +85 °C), used in multi-clock-domain video buffering systems such as broadcast encoders.

For engineers reviewing the CYFB0072V33L-133BGXI datasheet, CYFB0072V33L-133BGXI pinout, CYFB0072V33L-133BGXI application, or CYFB0072V33L-133BGXI equivalent, key selection criteria include simultaneous dual-clock FIFO operation, write mask/read skip control, DVal-synchronized output validity, and JTAG boundary scan support for system-level validation.

Technical Context

This device implements a synchronous dual-port FIFO architecture with physically separate read and write address pointers, enabling true asynchronous data transfer between clock domains with ratio tolerance of 0.5–2.0. It uses two core supply rails (VCC1 = 1.8 V, VCC2 = 1.5 V) and supports configurable I/O voltage (VCCIO = 1.8 V or 3.3 V).

The memory array is organized as 2,097,152 × 36 bits, with burst-aligned write operations (minimum 2-word bursts) and flexible read bursts (1- or 2-word). Flag logic (EF/FF) is synchronized respectively to RCLK and WCLK, and DVal provides active-low, RCLK-synchronized indication of valid Q[35:0] data.

Key Specifications

Pinout & Package

Package: 209-ball Fine-Pitch Ball Grid Array (FBGA), 13 mm × 13 mm, 0.8 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar video frame buffer applications.

Compared with IS42S32800J-6BLI and MT47H64M4BP-3:G, CYFB0072V33L-133BGXI delivers integrated dual-clock FIFO functionality with hardware flags and mailbox - reducing BOM count, PCB area, and firmware overhead in video-centric embedded systems.

Availability

CYFB0072V33L-133BGXI is available at Aetrix Electronics and suitable for video broadcast encoders, medical imaging pipelines, automotive ADAS fusion units, and industrial machine vision controllers requiring stable component supply and long-term lifecycle support.

Supply support for CYFB0072V33L-133BGXI 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 embedded systems, with focus on reliability, low-power operation, and system-level integration.

CYFB0072V belongs to Cypress's Video Interface Memory product line, engineered specifically for deterministic, low-latency buffering across asynchronous video clock domains in broadcast, medical, and automotive imaging systems.

FAQ

What is the purpose of the DVal signal?

DVal is an active-low, RCLK-synchronized signal that indicates valid data is present on Q[35:0]. It asserts coincident with output data, eliminating the need to track REN-to-Q timing or manage setup/hold margins in the receiving logic. This simplifies FPGA or ASIC capture design and ensures deterministic data sampling even under varying read clock frequencies.

Can CYFB0072V33L-133BGXI operate with different supply voltages on VCC1 and VCC2?

Yes - VCC1 must be 1.8 V ± 0.1 V for core logic, and VCC2 must be 1.5 V ± 0.1 V for internal memory array operation. These rails are independently regulated and must meet specified tolerances; mixing voltages outside these ranges risks functional failure or reduced timing margin. VCCIO sets I/O voltage (1.8 V or 3.3 V) and must match the connected interface standard.

How does the flow-through mailbox register interact with normal FIFO operation?

The mailbox register operates exclusively when MB is asserted; during this mode, normal read/write to the 72-Mbit memory array is disabled. Data written to D[35:0] appears on Q[35:0] after exactly two WCLK cycles. To avoid data loss, all pending reads must complete (DVal must go high) before asserting MB - ensuring no active memory transfers conflict with mailbox path activation.

Is JTAG boundary scan supported in-system without halting FIFO operation?

Yes - the JTAG TAP controller operates independently of the FIFO logic. Boundary scan testing can be performed while the device buffers video data, provided TCK frequency remains within specification (≤10 MHz) and no conflicting SPI or reset sequences are active. This enables live-board diagnostics without interrupting real-time video flow.