Semiconductor Group

562

HYM 322030S/GS-60/-70

2M

× 32-Bit

The HYM 322030S/GS-60/-70 is a 8 M Byte DRAM module organized as 2 097 152 words by

32-bit in a 72-pin single-in-line package comprising four HYB 5117800BSJ 2M

× 8 DRAMs in 400

mil wide SOJ-packages mounted together with four 0.2

µF ceramic decoupling capacitors on a PC

board.

Each HYB 5117800BSJ is described in the data sheet and is fully electrical 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 322030S/GS-60/-70 dictates the use of early write cycles.

Pin Definitions and Functions

Presence Detect Pins

Pin No.

Function

A0R-A10R

Row Address Inputs

A0C-A9C

Column Address Inputs

DQ0-DQ31

Data Input/Output

CAS0 - CAS3

Column Address Strobe

RAS0, RAS2

Row Address Strobe

WE

Read/Write Input

V

CC

Power (+ 5 V)

V

SS

Ground

PD

Presence Detect Pin

N.C.

No Connection

-60

-70

PD0

N.C.

N.C.

PD1

N.C.

N.C.

PD2

N.C.

V

SS

PD3

N.C.

N.C.