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Infineon Technologies CY7C433-20AXC — Memory (DRAM / SRAM / Flash / EEPROM)

CY7C433-20AXC 36K Async FIFO, 20ns, 50MHz, 32-TQFP

MPNCY7C433-20AXC
Obsolete

Infineon/Cypress CY7C433-20AXC asynchronous FIFO, 36K (4K x 9), 20 ns access time, 50 MHz data rate, 4.5 V to 5.5 V supply, 0°C to 70°C, 32-TQFP package, Tray.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C433-20AXC specifications
ParameterValue
SeriesCY7C
MountingSurface Mount
Expansion typeDepth, Width
Supply voltage4.5 V ~ 5.5 V
Current - supply55mA
Operating temperature0°C ~ 70°C
PackageTray
FunctionAsynchronous
Data rate50MHz
Access time20ns
Memory size36K (4K x 9)
FWFT supportNo
Case32-TQFP
Bus directionalUni-Directional
Retransmit capabilityYes
Programmable flags supportNo

Product details

36K asynchronous FIFO with 20 ns access time

The Infineon (formerly Cypress) CY7C433-20AXC is a 36K (4K x 9) asynchronous FIFO memory. Its 20 ns access time and 50 MHz data rate define the read/write cycle budget.

5 V supply — legacy interface consideration

The 5 V I/O levels are not 3.3 V tolerant on the inputs, so a direct connection to a 3.3 V controller or FPGA requires external level translation.

Buyers should verify date-code consistency and condition — sealed factory reels with uniform date-codes are preferred over mixed lots.

Housed in a 32-TQFP (7x7 mm) package, surface-mount soldering per standard JEDEC profiles.

Frequently asked questions

Is CY7C433-20AXC obsolete?

Buyers need to know if they can still source the part or must find an alternative.

What is the replacement for CY7C433-20AXC?

Designers and buyers need a drop-in or functional equivalent to avoid redesign.

Where can I find the datasheet for CY7C433-20AXC?

Engineers need specifications to validate fit and function.

How much does CY7C433-20AXC cost?

Buyers need pricing for budgeting and sourcing decisions.

Is CY7C433-20AXC in stock at major distributors?

Sourcing buyers check availability to avoid production delays.

What is the pinout of CY7C433-20AXC?

Pinout is critical for PCB layout and compatibility with existing designs.