CYM1861AV33

CYM1861AV33 Manufacturer

CYM1861AV33 Description

CYM1861AV33 Categories

CYM1861AV33 Datasheet (PDF)

CYM1861AV33 Price & Availability

CYM1861AV33 Features

• High-density 3.3V 64-megabit SRAM module
• 32-bit Standard Footprint supports densities from 16K × 32 through 2M × 32
• High-speed SRAMs
• • Access time of 20 ns
• 72 pins
• Available in SIMM format

CYM1861AV33 Description

The CYM1861AV33 is a high-performance 3.3V 64-megabit static RAM module organized as 2,048K words by 32 bits. This module is constructed from sixteen 1,024K × four SRAMs in SOJ packages mounted on an epoxy laminate substrate. Four chip selects are used to independently enable the four bytes. Reading or writing can be executed on individual bytes or any combination of multiple bytes through proper use of selects.

The CYM1861AV33 is designed for use with standard 72-pin SIMM sockets. The pinout is downward compatible with the 64-pin JEDEC SIMM module family (CYM1821, CYM1831, CYM1836, and CYM1841). Thus, a single motherboard design can be used to accommodate memory depth ranging from 16K words (CYM1821) to 2,048K words (CYM1861AV33). The CYM1861AV33 is offered in vertical SIMM configuration and is available with tin-lead edge contacts.

Presence detect pins (PD₀?PD₃) are used to identify module memory density in applications where modules with alternate word depths can be interchanged.

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