TM124FBK32F

` Organization TM124MBK36F . . . 1 048 576 * 36 TM248NBK36F . . . 2 097 152 * 36
` Single 5-V Power Supply (±10% Tolerance)
` 72-Pin Single-In-Line Memory Module (SIMM) for Use With Socket
` TM124MBK36F Utilizes Two 16-Megabit and One 4-Megabit DRAMs in Plastic Small-Outline J-Lead (SOJ) Packages
` TM248NBK36F Utilizes Four 16-Megabit and Two 4-Megabit DRAMs 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 (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) '124MBK36F-60 60 ns 30 ns 15 ns 110 ns '124MBK36F-70 70 ns 35 ns 18 ns 130 ns '124MBK36F-80 80 ns 40 ns 20 ns 150 ns '248NBK36F-60 60 ns 30 ns 15 ns 110 ns '248NBK36F-70 70 ns 35 ns 18 ns 130 ns '248NBK36F-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:† TM124MBK36F TM248NBK36F
` Tin-Lead (Solder) Tabbed Versions Available: TM124MBK36U TM248NBK36U

Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 V to 7 V
Voltage range on any pin (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 V to 7 V
Short-circuit output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Power dissipation: TM124FBK32F, TM124FBK32U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 W
TM248GBK32F, TM248GBK32U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 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 TM124FBK32F is a 4M-byte DRAM organized as four times 1048576 × 8 in a 72-pin SIMM. The SIMM is composed of two TMS418169DZ 1 048 576 × 16-bit DRAMs, each in a 42-lead plastic SOJ package mounted on a substrate with decoupling capacitors. The TMS418169DZ is described in the TMS418169 data sheet (literature number SMKS886). The TM124FBK32F SIMM is available in the single-sided BK-leadless module for use with sockets.