TM497BBK32, TM497BBK32S 4194304 BY 32-BIT DYNAMIC RAM MODULE

SMMS433B - JANUARY 1993 - REVISED JUNE 1995

features

• Organization...4194304 × 32
• Single 5-V Power Supply (±10% Tolerance)
• 72-Pin Single-In-Line Memory Module (SIMM) for Use With Sockets
• Utilizes Eight 16-Megabit DRAMs in Plastic Small-Outline J-Lead (SOJ) Packages
• Long Refresh Period 32 ms (2048 Cycles)
• All Inputs, Outputs, Clocks Fully TTL Compatible
• 3-State Output
• Common CAS\ Control for Eight Common Data-In and Data-Out Lines in Four Blocks
• Enhanced Page Mode Operation With CAS\-Before-RAS\ (CBR), RAS\-Only, and Hidden Refresh
• Presence Detect
• Performance Ranges: ACCESS ACCESS ACCESS READ OR TIME TIME TIME WRITE t_RAC t_AA t_CAC CYCLE (MAX) (MAX) (MAX) (MIN)'497BBK32-60 60 ns 30 ns 15 ns 110 ns'497BBK32-70 70 ns 35 ns 18 ns 130 ns'497BBK32-80 80 ns 40 ns 20 ns 150 ns
• Low Power Dissipation
• Operating Free-Air-Temperature Range 0°C to 70°C
• Gold-Tabbed Version Available: TM497BBK32
• Tin-Lead (Solder) Tabbed Version Available: TM497BBK32S

description

The TM497BBK32 is a 16M-byte dynamic random-access memory (DRAM) organized as four times 4194304 × 8 in a 72-pin leadless single-in-line memory module (SIMM). The SIMM is composed of eight TMS417400DJ, 4194304 × 4-bit DRAMs, each in 24/26-lead plastic small-outline J-lead (SOJ) packages mounted on a substrate with decoupling capacitors. The TMS417400DJ is described in the TMS417400 data sheet.

The TM497BBK32 SIMM is available in the single-sided BK leadless module for use with sockets. The TM497BBK32 SIMM features RAS\ access times of 60 ns, 70 ns, and 80 ns. This device is characterized for operation from 0°C to 70°C.

View more information about generic part numbers:TM497BBK32, TM497BBK32S

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