Infineon Technologies CY7C1445KV33-250AXC

Overview

CY7C1445KV33-250AXC from Cypress Semiconductor is a 36-Mb synchronous pipelined SRAM with 2Mb × 18 organization, 250 MHz clock frequency, 3.3 V core/interface supply (VCCQ = 2.4–3.6 V), and commercial temperature range (0°C to +70°C). It serves as high-speed buffer memory in networking line cards and packet-switching ASIC/FPGA interfaces.

For engineers reviewing the CY7C1445KV33-250AXC datasheet, CY7C1445KV33-250AXC pinout, CY7C1445KV33-250AXC application, or CY7C1445KV33-250AXC equivalent, key selection criteria include burst-length support (non-burst), pipeline depth, tAA/tHZ timing compliance at 250 MHz, and TQFP-100 thermal/mechanical fit in dense PCB layouts.

Technical Context

This SRAM implements standard synchronous interface timing with registered address and control inputs, single-cycle read/write access enabled by pipeline architecture. It supports no-burst (fixed-length) operation only, with all accesses initiated on rising CLK edge and data valid on subsequent rising edge.

Designed for low-latency, deterministic memory access in FPGA-adjacent datapaths, it features separate byte-enable controls per 18-bit word and full static operation-no refresh required. The device uses CMOS process technology optimized for 3.3 V I/O compatibility and meets JEDEC JESD8-15A voltage tolerance specifications.

Key Specifications

Pinout & Package

100-pin Thin Quad Flat Package (TQFP), 14 mm × 20 mm body, 0.5 mm pitch, 1.4 mm max height, JEDEC MO-140AC compliant. Pin 1 marked with dot; pins numbered counter-clockwise.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV204818BLL-250BLI, CY7C1445KV33-250AXC offers independent VCCQ for I/O voltage tuning; versus MT48LC32M18A2TG-75:C, it delivers fixed 4 ns access without refresh arbitration-critical for real-time packet processing.

Availability

CY7C1445KV33-250AXC is available at Aetrix Electronics and suitable for network packet buffering, FPGA co-processor caching, and telecom line card FIFO applications requiring stable component supply and long-term manufacturability.

Supply support for CY7C1445KV33-250AXC 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, and interface compatibility.

CY7C1445KV33-250AXC belongs to Cypress's high-speed synchronous SRAM product line, engineered specifically for deterministic-latency, FPGA-adjacent memory expansion in communications infrastructure and industrial control.

FAQ

Is CY7C1445KV33-250AXC pin-compatible with CY7C1445KV33-200AXC?

Yes, both share identical 100-pin TQFP-14×20mm package and pinout. The only difference is maximum clock frequency: 250 MHz vs. 200 MHz. Timing parameters scale accordingly, so designs targeting 200 MHz will operate safely at lower frequency, but 250 MHz-rated timing margins do not apply to the -200 variant.

Does this SRAM support burst-mode operation?

No. CY7C1445KV33-250AXC implements fixed-length (non-burst) synchronous access only. Burst length is hardwired to 1 word; there is no burst counter, burst control logic, or wrap-around addressing capability. This simplifies controller design for applications requiring strict latency predictability.

What is the meaning of "KV33" in the part number?

"KV33" denotes Cypress's synchronous SRAM family with 3.3 V I/O interface (VCCQ), pipelined architecture, and commercial temperature grade. It distinguishes this series from legacy 5 V or industrial-grade variants (e.g., "KV18" or "KV25") and confirms compliance with JEDEC 3.3 V signaling standards.

Can CY7C1445KV33-250AXC be used with 2.5 V FPGA I/O banks?

No. Minimum VCCQ is 2.4 V, but the device is specified only for 3.3 V I/O operation (VCCQ = 2.4–3.6 V). Driving it from a 2.5 V bank violates input voltage thresholds and may cause setup/hold violations. A level shifter or FPGA bank configured for 3.3 V SSTL/LVTTL is required.