TM248NBK36S

` Organization TM124MBK36C . . . 1048576 * 36 TM248NBK36C . . . 2097152 * 36
` Single 5-V Power Supply (±10% Tolerance)
` 72-pin Leadless Single In-Line Memory Module (SIMM)
` TM124MBK36C Utilizes Eight 4-Megabit DRAMs in Plastic Small-Outline J-Lead (SOJ) Packages and Two 4-Megabit Quad-CAS DRAMs in Plastic SOJ Packages
` TM248NBK36C Utilizes Sixteen 4-Megabit DRAMs in Plastic SOJ Packages and Four 4-Megabit Quad-CAS DRAMs in Plastic 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 (CBR), 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)  4124MBK36C-60 60 ns 30 ns 15 ns 110 ns 4124MBK36C-70 70 ns 35 ns 18 ns 130 ns 4124MBK36C-80 80 ns 40 ns 20 ns 150 ns 4248NBK36C-60 60 ns 30 ns 15 ns 110 ns 4248NBK36C-70 70 ns 35 ns 18 ns 130 ns 4248NBK36C-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:† TM124MBK36C TM248NBK36C
` Tin-Lead (Solder) Tabbed Versions TM124MBK36S TM248NBK36S

Supply voltage range on VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 V to 7 V
Supply voltage range on any pin (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, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 TM248NBK36S is a dynamic random-access memory (DRAM) 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 DRAMs, each in 20/26-lead plastic small-outline J-lead packages (SOJs), and two TMS44460DJ, 1048576 × 4-bit Quad-CAS DRAMs, in 24/26-lead plastic SOJs mounted on a substrate with decoupling capacitors. Each TMS44400DJ and TMS44460DJ is described in the TMS44400 and TMS44460 data sheets, respectively.

The TM248NBK36S is available in the single-sided BK leadless module for use with sockets.

The TM248NBK36S features RAS access times of 60 ns, 70 ns, and 80 ns. This device is characterized for operation from 0°C to 70°C.