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CYM1946

Features: • High-density 16-megabit SRAM module• 32-bit Standard Footprint supports densities from 16K x 32 through 1M x 32• High-speed SRAMs-Access time of 35 ns• Low active power-7.3W (max.) at 35ns• Compatible with CYM1821, CYM1831, CYM1836, CYM1841, and CYM1851 JD...

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SeekIC No. : 004320652 Detail

CYM1946: Features: • High-density 16-megabit SRAM module• 32-bit Standard Footprint supports densities from 16K x 32 through 1M x 32• High-speed SRAMs-Access time of 35 ns• Low active...

CYM1946 Data Sheet

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Part Number:
CYM1946
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• High-density 16-megabit SRAM module
• 32-bit Standard Footprint supports densities from 16K x 32 through 1M x 32
• High-speed SRAMs
-Access time of 35 ns
• Low active power
-7.3W (max.) at 35ns
• Compatible with CYM1821, CYM1831, CYM1836, CYM1841, and CYM1851 JDEC Modules


Pinout

Connection Diagram


Specifications

Storage Temperature ................................. 55°C to +125°C
Ambient Temperature with
Power Applied............................................... 10°C to +85°C
Supply Voltage to Ground Potential ............... 0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State.................................................0.5V to +VCC
DC Input Voltage ............................................0.5V to +7.0V


Description

The CYM1946 is a high-performance 16-megabit static RAM module organized as 512K words by 32 bits. The  CYM1946 is constructed from 16 128K x 8 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 CYM1946 is designed for use with standard 72-pin SIMM sockets. The pinout is downward compatible with the 64-pin JEDEC ZIP/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 1,024K words (CYM1851).
Presence detect pins (PD0PD3) are used to identify CYM1946's memory density in applications where modules with alternate word depths can be interchanged.




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