HYM321000S Datasheet, PDF (2/10 Pages) Siemens Semiconductor Group – 1M x 32-Bit Dynamic RAM Module 2M x 16-Bit Dynamic RAM Module

HYM 321000S/GS-50/-60
1M × 32-Bit
The HYM 321000S/GS-50/-60 is a 4 MByte DRAM module organized as 1 048 576 words by 32-
bit in a 72-pin single-in-line package comprising two HYB 5118160BSJ 1M × 16 DRAMs in 400 mil
wide SOJ-packages mounted together with two 0.2 µF ceramic decoupling capacitors on a PC
board.
The HYM 321000S/GS-60/-70 can also be used as a 2 097 152 words by 16-bits dynamic RAM
module by means of connecting DQ0 and DQ16, DQ1 and DQ17, DQ2 and DQ18, …, DQ15 and
DQ31, respectively.
Each HYB 5118160BSJ is described in the data sheet and is fully electrically tested and processed
according to Siemens standard quality procedure prior to module assembly. After assembly onto
the board, a further set of electrical tests is performed.
The speed of the module can be detected by the use of four presence detect pins.
The common I/O feature on the HYM 321000S/GS-50/-60 dictates the use of early write cycles.
Ordering Information
Type
HYM 321000S-50
Ordering Code
Q67100 - Q2051
HYM 321000S-60
Q67100 - Q2056
HYM 321000GS-50 Q67100 - Q2053
HYM 321000GS-60 Q67100 - Q2058
Package
L-SIM-72-10
L-SIM-72-10
L-SIM-72-10
L-SIM-72-10
Descriptions
DRAM module
(access time50 ns)
DRAM module
(access time 60 ns)
DRAM module
(access time 50 ns)
DRAM module
(access time 60 ns)
Semiconductor Group
2