TM497GU8

` Organization . . . 4194304 * 8
` Single 5-V Power Supply (±10% Tolerance)
` 30-Pin Single-In-Line Memory Module (SIMM) for Use With Sockets
` Utilizes Two 16-Megabit Dynamic RAMs 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
` Performance Ranges: ACCESS ACCESS ACCESS READ OR TIME TIME TIME WRITE tRAC tAA tCAC CYCLE (MAX) (MAX) (MAX) (MIN) '497GU8-60 60 ns 30 ns 15 ns 110 ns '497GU8-70 70 ns 35 ns 18 ns 130 ns '497GU8-80 80 ns 40 ns 20 ns 150 ns
` Common CAS Control for Eight Common Data-In and Data-Out Lines
` Low Power Dissipation
` Operating Free-Air Temperature Range 0°C to 70°C
` Enhanced Page-Mode Operation WithCAS-Before-RAS (CBR), RAS-Only, and Hidden Refresh

Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 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 TM497GU8 is a 4M-byte dynamic random-access memory module organized as 4194304 × 8 bits in a 30-pin leadless single-in-line memory module (SIMM).

The SIMM is composed of two TMS417400DJ, 4194304 × 4-bit dynamic RAMs in 24/26-lead plastic small-outline J-lead (SOJ) packages mounted on a substrate with decoupling capacitors.

The TM497GU8 is available in the U single-sided, leadless module for use with sockets and is characterized for operation from 0°C to 70°C.