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Электронный компонент: EBR12UC8ABFD-AE

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Document No. E0319E20 (Ver. 2.0)
Date Published April 2003 (K) Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2002-2003
DATA SHEET
128MB Direct Rambus
DRAM RIMM
Module
EBR12UC8ABFD (64M words



16 bits)
Description
The Direct Rambus RIMM module is a general-purpose
high-performance memory module subsystem suitable
for use in a broad range of applications including
computer memory, personal computers, workstations,
and other applications where high bandwidth and low
latency are required.

The EBR12UC8ABFD consists of 4 pieces of 288M
Direct Rambus DRAM (Direct RDRAM
) devices.
These are extremely high-speed CMOS DRAMs
organized as 16M words by 18 bits. The use of
Rambus Signaling Level (RSL) technology permits
1066MHz or 800MHz transfer rates while using
conventional system and board design technologies.

The architecture of the Direct RDRAM enables the
highest sustained bandwidth for multiple, simultaneous,
randomly addressed memory transactions.
The separate control and data buses with independent
row and column control yield over 95% bus efficiency.
The Direct RDRAM device's 32 banks support up to
four simultaneous transactions per device.

Features
128MB Direct RDRAM storage and 128 banks total
on module
High speed 1066MHz/800MHz Direct RDRAM
devices
184 edge connector pads with 1mm pad spacing
Module PCB size: 133.35mm
34.925mm
1.27mm
Gold plated edge connector pads contacts
Serial Presence Detect (SPD) support
Operates from a 2.5V supply
Low power and power down self refresh modes
Separate Row and Column buses for higher
efficiency
RDRAM
devices use Chip Scale Package (CSP)
FBGA (
BGA
) package
EBR12UC8ABFD
Data Sheet E0319E20 (Ver. 2.0)
2
Ordering Information

Part number

Organization
I/O Freq.
(MHz)
RAS access
time (ns)

Package

Mounted devices
EBR12UC8ABFD-AEP 64M x 16
1066
32 (32P)
184 edge connector pads
RIMM with heat spreader
EDR2518ABSE
EBR12UC8ABFD-AE
32
Edge connector: Gold plated
EBR12UC8ABFD-AD
35
EBR12UC8ABFD-8C
800
40
Module Pad Names
Pad
Signal
Name Pad
Signal
Name
Pad
Signal
Name Pad
Signal
Name
A1 GND B1 GND
A47 NC B47 NC
A2
LDQA8 B2
LDQA7 A48
NC
B48
NC
A3 GND B3 GND
A49 NC B49 NC
A4
LDQA6 B4
LDQA5 A50
NC
B50
NC
A5 GND B5 GND
A51 VREF B51 VREF
A6
LDQA4 B6
LDQA3 A52
GND B52
GND
A7 GND B7 GND
A53 SCL B53 SA0
A8
LDQA2 B8
LDQA1 A54
VDD
B54
VDD
A9 GND B9 GND
A55 SDA B55 SA1
A10 LDQA0
B10 LCFM
A56 SVDD
B56 SVDD
A11 GND B11 GND
A57 SWP B57 SA2
A12 LCTMN
B12 LCFMN
A58 VDD B58 VDD
A13 GND B13 GND
A59 RSCK
B59 RCMD
A14 LCTM
B14 NC
A60 GND B60 GND
A15 GND B15 GND
A61 RDQB7
B61 RDQB8
A16 NC B16 LROW2
A62 GND B62 GND
A17 GND B17 GND
A63 RDQB5
B63 RDQB6
A18 LROW1
B18 LROW0
A64 GND B64 GND
A19 GND B19 GND
A65 RDQB3
B65 RDQB4
A20 LCOL4
B20 LCOL3
A66 GND B66 GND
A21 GND B21 GND
A67 RDQB1
B67 RDQB2
A22 LCOL2
B22 LCOL1
A68 GND B68 GND
A23 GND B23 GND
A69 RCOL0
B69 RDQB0
A24 LCOL0
B24 LDQB0
A70 GND B70 GND
A25 GND B25 GND
A71 RCOL2
B71 RCOL1
A26 LDQB1
B26 LDQB2
A72 GND B72 GND
A27 GND B27 GND
A73 RCOL4
B73 RCOL3
A28 LDQB3
B28 LDQB4
A74 GND B74 GND
A29 GND B29 GND
A75 RROW1
B75 RROW0
A30 LDQB5
B30 LDQB6
A76 GND B76 GND
A31 GND B31 GND
A77 NC B77 RROW2
A32 LDQB7
B32 LDQB8
A78 GND B78 GND
A33 GND B33 GND
A79 RCTM
B79 NC
A34 LSCK
B34 LCMD
A80 GND B80 GND
EBR12UC8ABFD
Data Sheet E0319E20 (Ver. 2.0)
3
Pad
Signal
Name Pad
Signal
Name
Pad
Signal
Name Pad
Signal
Name
A35 VCMOS
B35 VCMOS
A81 RCTMN
B81 RCFMN
A36 SOUT
B36 SIN
A82 GND B82 GND
A37 VCMOS
B37 VCMOS
A83 RDQA0
B83 RCFM
A38 NC B38 NC
A84 GND B84 GND
A39 GND B39 GND
A85 RDQA2
B85 RDQA1
A40 NC B40 NC
A86 GND B86 GND
A41 VDD B41 VDD
A87 RDQA4
B87 RDQA3
A42 VDD B42 VDD
A88 GND B88 GND
A43 NC B43 NC
A89 RDQA6
B89 RDQA5
A44 NC B44 NC
A90 GND B90 GND
A45 NC B45 NC
A91 RDQA8
B91 RDQA7
A46 NC B46 NC
A92 GND B92 GND
EBR12UC8ABFD
Data Sheet E0319E20 (Ver. 2.0)
4
Module Connector Pad Description

Signal
Module
Connector Pads

I/O

Type

Description
GND
A1, A3, A5, A7, A9, A11,
A13, A15, A17, A19, A21,
A23, A25, A27, A29, A31,
A33, A39, A52, A60, A62,
A64, A66, A68, A70, A72,
A74, A76, A78, A80, A82,
A84, A86, A88, A90, A92,
B1, B3, B5, B7, B9, B11,
B13, B15, B17, B19, B21,
B23, B25, B27, B29, B31,
B33, B39, B52, B60, B62,
B64, B66, B68, B70, B72,
B74, B76, B78, B80, B82,
B84, B86, B88, B90, B92
-- --
Ground reference for RDRAM core and interface. 72
PCB connector pads.
LCFM B10
I
RSL
Clock from master. Interface clock used for receiving
RSL signals from the Channel. Positive polarity.
LCFMN B12
I RSL
Clock from master. Interface clock used for receiving
RSL signals from the Channel. Negative polarity.
LCMD B34
I
VCMOS
Serial Command used to read from and write to the
control registers. Also used for power management.
LCOL4..LCOL0
A20, B20, A22, B22, A24 I
RSL
Column bus. 5-bit bus containing control and address
information for column accesses.
LCTM A14
I
RSL
Clock to master. Interface clock used for transmitting
RSL signals to the Channel. Positive polarity.
LCTMN A12
I RSL
Clock to master. Interface clock used for transmitting
RSL signals to the Channel. Negative polarity.
LDQA8..LDQA0
A2, B2,A4, B4, A6, B6, A8,
B8, A10
I/O RSL
Data bus A. A 9-bit bus carrying a byte of read or write
data between the Channel and the RDRAM.
LDQB8..LDQB0
B32, A32, B30, A30, B28,
A28, B26, A26, B24
I/O RSL
Data bus B. A 9-bit bus carrying a byte of read or write
data between the Channel and the RDRAM.
LROW2..LROW0 B16, A18, B18
I
RSL
Row bus. 3-bit bus containing control and address
information for row accesses.
LSCK A34
I
VCMOS
Serial clock input. Clock source used to read from and
write to the RDRAM control registers.
NC
A16, B14, A38, B38, A40,
B40, A77, B79, A43, B43,
A44, B44, A45, B45, A46,
B46, A47, B47, A48, B48,
A49, B49, A50, B50
-- --
These pads are not connected. These 24 connector
pads are reserved for future use.
RCFM B83
I
RSL
Clock from master. Interface clock used for receiving
RSL signals from the Channel. Positive polarity.
RCFMN B81
I RSL
Clock from master. Interface clock used for receiving
RSL signals from the Channel. Negative polarity.
RCMD B59
I
VCMOS
Serial Command Input used to read from and write to
the control registers. Also used for power
management.
RCOL4..RCOL0
A73, B73, A71, B71, A69 I
RSL
Column bus. 5-bit bus containing control and address
information for column accesses.
RCTM A79
I
RSL
Clock to master. Interface clock used for transmitting
RSL signals to the Channel. Positive polarity.
RCTMN A81
I RSL
Clock to master. Interface clock used for transmitting
RSL signals to the Channel. Negative polarity.
RDQA8..RDQA0
A91, B91, A89, B89, A87,
B87, A85, B85, A83
I/O RSL
Data bus A. A 9-bit bus carrying a byte of read or write
data between the Channel and the RDRAM.
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.
RROW2..RROW0 B77, A75, B75
I
RSL
Row bus. 3-bit bus containing control and address
information for row accesses.
EBR12UC8ABFD
Data Sheet E0319E20 (Ver. 2.0)
5

Signal
Module
Connector Pads

I/O

Type

Description
RSCK A59
I
VCMOS
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
VCMOS
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
VCMOS
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, SWP, 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.
VCMOS
A35, B35, A37, B37
--
--
CMOS I/O Voltage. Used for signals CMD, SCK, SIN,
SOUT.
VDD
A41, A42, A54, A58, B41,
B42, B54, B58
-- --
Supply voltage for the RDRAM core and interface
logic.
VREF
A51, B51
--
--
Logic threshold reference voltage for RSL signals.