Part Number: MT4LC16M4T8
Chip Type: 16 Mb x 4 MICRON FPM DRAM
Availability: Obsolete since year 1999.
Before the more modern forms of Dynamic Random Access Memory (DRAM), Fast Page Mode DRAM (FPM) was the most common kind of DRAM in computers. What Page Mode DRAM does is it accesses a complete row of RAM without having to constantly re-specify the row.
There after a Row Access Strobe signal (RAS signal) is kept active while the Column Access Strobe signal (CAS signal) changes to read a sequence of neighboring memory cells.
This reduces the access time and lowers the power requirements. Clock timings for FPM DRAM are typically 6-3-3-3 (meaning 3 clock cycles for access setup, and 3 clock cycles for the first and each of three successive accesses, based on the initial setup).
T8 - Re-fresh addressing of 4,096 (4k) rows.
DJ - Plastic package. Pin Assignment. 32-pin SOJ (400 mil).
-5D - Timing. 50ns access.
9910 - Manufacture date of 1999, week 10.
MT - Micron Technology, Inc.
4LC16M4T8 - Product code.
I-I - Unknown.
YVT6 - Unknown.
The 16 Meg x4 DRAMs are high speed CMOS dynamic random access memory devices containing 67,108,864 bits organized in a x4 configuration. The MT4LC16M4T8 is functionally organized as 16,777,216 locations containing four bits each.
The 16,777,216 memory locations are arrainged in 4,096 rows by 4.096 columns.