TM248NBK36T

• Organization TM124MBK36E . . . 1 048 576 * 36 TM248NBK36E . . . 2 097 152 * 36
• Single 5-V Power Supply (±10% Tolerance)
• 72-Pin Leadless Single-In-Line Memory Module (SIMM)
• TM124MBK36E Utilizes Eight 4-Megabit Dynamic RAMs in Plastic Small-Outline J-Lead (SOJ) Packages and Two 2-Megabit Dual-CAS Dynamic RAMs in Plastic Small-Outline J-Lead (SOJ) Packages
• TM248NBK36E Utilizes Sixteen 4-Megabit Dynamic RAMs in Plastic Small-Outline J-Lead (SOJ) Packages and Four 2-Megabit Dual-CAS Dynamic RAMs in Plastic Small-Outline J-Lead (SOJ) Packages
• Long Refresh Period . . . 16 ms (1024 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, RAS-Only, and Hidden Refresh
• Presence Detect
• Performance Ranges: ACCESS ACCESS ACCESS READ TIME TIME TIME OR tRAC tAA tCAC WRITE CYCLE (MAX) (MAX) (MAX) (MIN) '124MBK36E-60 60 ns 30 ns 15 ns 110 ns '124MBK36E-70 70 ns 35 ns 18 ns 130 ns '124MBK36E-80 80 ns 40 ns 20 ns 150 ns '248NBK36E-60 60 ns 30 ns 15 ns 110 ns '248NBK36E-70 70 ns 35 ns 18 ns 130 ns '248NBK36E-80 80 ns 40 ns 20 ns 150 ns
• Low Power Dissipation
• Operating Free-Air Temperature Range: 0°C to 70°C
• Gold-Tabbed Versions Available:† TM124MBK36E TM248NBK36E
• Tin-Lead (Solder) Tabbed Versions Available: TM124MBK36T TM248NBK36T

Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 V to 7 V
Input voltage range (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 V to 7 V
Short-circuit output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 W
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C to 125°C


† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to VSS.

The TM248NBK36T is a dynamic random-access memory (RAM) organized as four times 1048576 × 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 TMS44400DJ, 1 048 576 × 4-bit dynamic RAMs, each in a 20/26-lead plastic small-outline J-lead (SOJ) package, and two TMS42260DJ, 1 048 576 × 2-bit dual-CAS dynamic RAMs, each in a 24/26-lead plastic small-outline J-lead (SOJ) package, mounted on a substrate with decoupling capacitors. Each TMS44400DJ or TMS42260DJ is described in the TMS44400 or TMS42260 data sheet, respectively.

The TM248NBK36T is available in the single-sided BK leadless module for use with sockets. It features RAS access times of 60 ns, 70 ns, and 80 ns. This device is characterized for operation from 0°C to 70°C.

The TM248NBK36T is a dynamic random-access memory (RAM) organized as four times 2 097 152 × 9 (bit 9 is generally used for parity) in a 72-pin leadless single-in-line memory module (SIMM). The SIMM is composed of sixteen TMS44400DJ, 1 048 576 × 4-bit dynamic RAMs, each in a 20/26-lead plastic small-outline J-lead (SOJ) package, and four TMS42260DJ, 1 048 576 × 2-bit dual-CAS dynamic RAMs, each in a 24/26-lead plastic small-outline J-lead (SOJ) package, mounted on a substrate with decoupling capacitors. Each TMS44400DJ or TMS42260DJ is described in the TMS44400 or TMS42260 data sheet, respectively.

The TM248NBK36T is available in the double-sided BK leadless module for use with sockets. It features RAS access times of 60 ns, 70 ns, and 80 ns. This device is rated for operation from 0°C to 70°C.