HMD4M72D18G Overview
The HMD4M72D18G is a 4Mx72bits Dynamic RAM high density memory module. The HMD4M72D18G consists of eighteen CMOS 4Mx4bits DRAMs in SOJ/TSOPІІ 400mil packages mounted on a 168-pin glass-epoxy substrate. A 0.1 or 0.22uF decoupling capacitor is mounted on the printed circuit board for each DRAM.
HMD4M72D18G Key Features
- /CAS7 SCL DU Function Row Address Strobe Column Address Strobe Serial Clock Don't use Pin Name Vss NC Vcc SDA Function G
- SA2 Address in EEPROM CB0
- CB7 Check Bit DQ0-DQ63 Data In/Out Address