Infineon Technologies CY7C1473BV33-133AXC

Mfr. Part

CY7C1473BV33-133AXC

Manufacturer

Cypress Semiconductor (Infineon Technologies)

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Detailed Description

72 Mbit synchronous SDR SRAM from the NoBL series

Organization 4M x 18, parallel interface

3.3 V supply (3.135 V to 3.6 V)

133 MHz clock, 6.5 ns access

Commercial temperature 0°C to 70°C (TA)

RoHS3 compliant

Surface-mount 100-TQFP (14 x 20 mm) package

Base product number CY7C1473

Supplied in trays

Key Features

72 Mbit density for high-speed buffering and caching

Synchronous SDR SRAM with parallel interface

NoBL (No Bus Latency) architecture for sustained throughput and minimal turnaround delays

133 MHz operation with 6.5 ns access time

3.3 V operation with wide tolerance (3.135 V to 3.6 V)

4M x 18 word organization for efficient 18-bit data paths

Byte-write capability (typical for 18-bit devices) to update sub-word data efficiently

Tri-state I/O for easy bus sharing

Commercial temperature range 0°C to 70°C

JEDEC-standard thin quad flat package footprint for straightforward SMT assembly

RoHS3 compliant, lead-free finishes

Key Advantages

High bandwidth and low latency for continuous read/write bursts without bus turnaround penalties

Simple parallel interface makes integration with FPGAs, ASICs, and controllers easy

Reliable 3.3 V platform widely supported in industrial and networking designs

Mature, proven Cypress/Infineon SRAM technology with strong ecosystem support

Compact 100-TQFP package saves PCB space while keeping routing manageable

Stable performance across the commercial temperature range

Packaging

Type: 100-TQFP (also noted as 100-LQFP), body size 14 x 20 mm

Material: Molded epoxy package with copper leadframe; lead-free plating (RoHS3)

Form factor: Thin quad flat package, fine-pitch gull-wing leads for SMT

Pin count: 100 leads, arranged on four sides to simplify parallel bus routing

Pin configuration: Parallel data bus (18 bits), address lines, clock, chip enable, output enable, write enable, byte write enables, burst/mode control, and power/ground pins (see datasheet for the exact pinout)

Thermal characteristics: Designed for commercial 0°C to 70°C operation; use standard airflow and solid ground planes for heat spreading; refer to datasheet for thermal resistance and power dissipation data

Electrical properties: 3.3 V supply (3.135 V to 3.6 V), LVTTL-compatible I/O, synchronous clocked control, tri-state outputs; consult datasheet for detailed DC/AC characteristics and timing

Shipping: Tray packaging for safe handling and automated pick-and-place

Mounting: Surface Mount Technology (SMT)

Compliance: RoHS3 compliant

Lifecycle

Status: Mature and widely deployed. As of the latest available information, no general discontinuation notice is indicated for this specific speed/grade. Market status can change; please confirm current status with Y-IC.

Family equivalents and variants: The CY7C1473BV33 family typically offers multiple speed grades, temperature ranges, and packages. Examples include:

- CY7C1473BV33 with other speed grades (e.g., 100 MHz, 165 MHz, 200 MHz)

- Commercial vs. industrial temperature variants (e.g., “AXC” for commercial, “AXI” for industrial in similar package families)

- Alternate packages in the same family or closely related NoBL/ZBT SRAMs

Cross-brand alternatives: Comparable synchronous 3.3 V SRAMs may exist from vendors such as GSI Technology, Renesas/IDT, and ISSI. Compatibility depends on timing, control signals, and pinout.

For a precise, up-to-date, and detailed cross list of equivalents and substitutes, contact Y-IC via our website. Our team will match pinout, timing, and performance to your design needs.

Key Application Areas

Networking and telecom: switch/router packet buffering, flow tables, routing tables

FPGA external memory: high-speed buffers, FIFOs, scratchpads

Baseband and wireless infrastructure: frame buffers, channel memory

Video and imaging: frame buffering, line stores, real-time processing pipelines

Industrial control and automation: motion control buffers, data logging

Test and measurement: pattern memory, capture buffers

Storage and RAID controllers: cache and metadata tables

Embedded systems needing deterministic, low-latency memory

Datasheet

Our website hosts the most authoritative datasheet for CY7C1473BV33-133AXC. Download it directly on this page for complete specifications, pinout, timing diagrams, and application notes. We recommend reviewing the datasheet before final design decisions.

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