HYR166420G-845 datasheet(7/14 Pages) INFINEON

Part #	HYR166420G-845

Description	Direct RDRAM RIMM Modules (with 144 Mbit RDRAMs)

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Manufacturer	INFINEON [Infineon Technologies AG]

Direct Link	http://www.infineon.com

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7 / 14 page

HYR 16xx20G/HYR 18xx20G

Rambus RIMM Modules

INFINEON Technologies

7

7.00

RDQB8 …

RDQB0

B61, A61, B63, A63, B65,

A65, B67, A67, B69

I/O

RSL

Data bus B. A 9-bit bus carrying a

byte of read or write data between

the Channel and the RDRAM.

RDQB8 is non-functional on

modules with x16 RDRAM devices.

RROW2 …

RROW0

B77, A75, B75

I

RSL

Row bus. 3-bit bus containing

control and address information for

row accesses.

RSCK

A59

I

V

CMOS

Serial Clock input. Clock source

used to read from and write to the

RDRAM control registers.

SA0

B53

I

SVDD

Serial Presence Detect Address 0.

SA1

B55

I

SVDD

Serial Presence Detect Address 1.

SA2

B57

I

SVDD

Serial Presence Detect Address 2.

SCL

A53

I

SVDD

Serial Presence Detect Clock.

SDA

A55

I/O

SVDD

Serial Presence Detect Data (Open

Collector I/O).

SIN

B36

I/O

V

CMOS

Serial I/O for reading from and

writing to the control registers.

Attaches to SIO0 of the first RDRAM

on the module.

SOUT

A36

I/O

V

CMOS

Serial I/O for reading from and

writing to the control registers.

Attaches to SIO1 of the last RDRAM

on the module.

SVDD

A56, B56

––

SPD Voltage. Used for signals SCL,

SDA, SWE, SA0, SA1 and SA2.

SWP

A57

I

SVDD

Serial Presence Detect Write

Protect (active high). When low, the

SPD can be written as well as read.

V

CMOS

A35, B35, A37, B37

––

CMOS I/O Voltage. Used for signals

CMD, SCK, SIN, SOUT.

V

DD

A41, A42, A54, A58, B41,

B42, B54, B58

––

Supply voltage for the RDRAM core

and interface logic.

V

REF

A51, B51

––

Logic threshold reference voltage

for RSL signals.

Module Connector Pad Description (cont’d)

Signal

Module Connector Pads

I/O

Type

Description

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