Skip to main content
Infineon Technologies CY7C1041CV33-8ZSXI — Memory (DRAM / SRAM / Flash / EEPROM)

Cypress CY7C1041CV33-8ZSXI 4Mbit Async SRAM, 8 ns

MPNCY7C1041CV33-8ZSXI
Obsolete

Cypress CY7C1041CV33-8ZSXI, 4Mbit (256Kx16) asynchronous SRAM, 8 ns access time, 3V–3.6V supply, parallel interface, 44-TSOP II, -40°C to 85°C, tray.

$2.0806Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C1041CV33-8ZSXI specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage3V ~ 3.6V
Memory interfaceParallel
Operating temperature-40°C ~ 85°C (TA)
PackageTray
TechnologySRAM - Asynchronous
Access time8 ns
Memory size4Mbit
Memory formatSRAM
Case44-TSOP (0.400\", 10.16mm Width)
Memory organization256K x 16
Write cycle time - word, page8ns

Product details

8 ns asynchronous SRAM — bus timing headroom for the system architect

The Cypress CY7C1041CV33-8ZSXI is a 4Mbit asynchronous SRAM organized as 256K x 16 bits. Its 8 ns access time means the data appears on the bus within 8 ns of the address being valid — fast enough to interface with a 100 MHz-class processor without wait states, assuming typical board delays. The parallel interface is straightforward to hook up to any MCU or FPGA with a memory controller, no configuration needed.

Package and footprint — 44-TSOP II

The device comes in a 44-TSOP II package, a standard surface-mount footprint measuring 10.16 mm body width. It ships in a tray. The mounting type is Surface Mount. For a layout engineer, the 44-TSOP II is a common pinout for 256K x 16 asynchronous SRAMs, so a board designed for this part can often accept a drop-in alternate from another vendor — but always check the pin 1 orientation and any NC pins against the target alternate's datasheet.

Frequently asked questions

Is CY7C1041CV33-8ZSXI obsolete?

Yes, the CY7C1041CV33-8ZSXI is listed as Obsolete. Cypress no longer produces it, and there is no official replacement order code. It must be sourced through the surplus and broker market.

What is the replacement for CY7C1041CV33-8ZSXI?

Cypress has not published a direct successor. For new designs, look for a current-production 4Mbit (256K x 16) asynchronous SRAM in a 44-TSOP II package with 8 ns access time and 3.3V supply. Candidates include the ISSI IS61WV25616BLL-8TLI or the Alliance AS7C34098A-10TIN, but you must verify pin compatibility and timing from the respective datasheets.

What is the access time of CY7C1041CV33-8ZSXI?

The access time is 8 ns. For a 100 MHz bus, 8 ns leaves about 2 ns of margin after accounting for PCB trace delays and setup times.