GENERAL DESCRIPTION

The Samsung M390S2858CT1 is a 128M bit x 72 Synchronous Dynamic RAM high density memory module. The Samsung M390S2858CT1 consists of eighteen CMOS Stacked 128Mx4 bit Synchronous DRAMs in two TSOP-II 400mil packages, three 18-bits Drive ICs for input control signal, one PLL in 24-pin TSSOP package for clock and one 2K EEPROM in 8- pin TSSOP package for Serial Presence Detect on a 168-pin glass-epoxy substrate. Two 0.22uF and one 0.0022uF decoupling capacitors are mounted on the printed circuit board in parallel for each SDRAM. The M390S2858CT1 is a Dual Inline Memory Module and is intented for mounting into 168-pin edge connector sockets.

FEATURE

• Performance range

• Burst mode operation

• Auto & self refresh capability (8192 Cycles/64ms)

• LVTTL compatible inputs and outputs

• Single 3.3V ± 0.3V power supply

• MRS cycle with address key programs

Latency (Access from column address)

Burst length (1, 2, 4 , 8 & Full page)

Data scramble (Sequential & Interleave)

• All inputs are sampled at the positive going edge of the system clock

• Serial presence detect with EEPROM

• PCB : Height (1,700mil), double sided component