TM497MBM36A, TM497MBM36Q 4194304 BY 36-BIT TM893NBM36A, TM893NBM36Q 8388608 BY 36-BIT DYNAMIC RANDOM-ACCESS MEMORY MODULES

SMMS653B - MAY 1995 - REVISED JULY 1995

features

• Organization TM497MBM36A...4194304 × 36 TM893NBM36A...8388608 × 36
• Single 5-V Power Supply (±10% Tolerance)
• 72-Pin Leadless Single In-Line Memory Module (SIMM) for Use With Sockets
• TM497MBM36A - Utilizes Eight 16-Megabit and Four 4-Megabit DRAMs in Plastic Small-Outline J-Lead (SOJ) Packages
• TM893NBM36A - Utilizes Sixteen 16-Megabit and Eight 4-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 Nine Common Data-In and Data-Out Lines in Four Blocks
• Enhanced Page-Mode Operation With CAS\-Before-RAS\ (CBR), RAS\-Only, and Hidden Refresh
• Present Detect
• Operating Free-Air Temperature Range 0°C to 70°C
• Performance Ranges: ACCESS ACCESS ACCESS READ TIME TIME TIME OR t_RAC t_AA t_CAC WRITE CYCLE (MAX) (MAX) (MAX) (MIN) '497MBM36A-60 60 ns 30 ns 15 ns 110 ns '497MBM36A-70 70 ns 35 ns 18 ns 130 ns '497MBM36A-80 80 ns 40 ns 20 ns 150 ns '893NBM36A-60 60 ns 30 ns 15 ns 110 ns '893NBM36A-70 70 ns 35 ns 18 ns 130 ns '893NBM36A-80 80 ns 40 ns 20 ns 150 ns
• Gold-Tabbed Versions Available: TM497MBM36A TM893NBM36A
• Tin-Lead (Solder)-Tabbed Versions Available: TM497MBM36Q TM893NBM36Q

description

TM497MBM36A

The TM497MBM36A is a 16-megabyte dynamic random-access memory (DRAM) organized as four times 4194304 × 9 (bit 9 is generally used for parity) in a 72-pin leadless single in-line memory module (SIMM). The SIMM is composed of eight TMS417400DJ 4194304 × 4-bit DRAMs, each in a 24/26-lead plastic small-outline J-lead (SOJ) package, and four TMS44100DJ 4194304 × 1-bit DRAMs, each in a 20/26-lead plastic SOJ package mounted on a substrate with decoupling capacitors. The TMS417400DJ and TMS44100DJ are described in the TMS417400 and TMS44100 data sheets, respectively. The TM497MBM36A SIMM is available in the single-sided, BM leadless module for use with sockets.

TM893NBM36A

The TM893NBM36A is a 32-megabyteDRAM organized as four times 8388608 × 9 (bit 9 is generally used for parity) in a 72-pin leadless SIMM. The SIMM is composed of sixteen TMS417400DJ 4194304 × 4-bit DRAMs, each in a 24/26-lead plastic SOJ package, and eight TMS44100DJ 4194304 × 1-bit DRAMs, each in a 20/26-lead plastic SOJ package, mounted on a substrate with decoupling capacitors. The TMS417400DJ and TMS44100DJ are described in the TMS417400 and TMS44100 data sheets, respectively. The TM893NBM36A SIMM is available in the double-sided, BM leadless module for use with sockets.

View more information about generic part numbers:TM893NBM36A, TM893NBM36Q

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