Features Pin Identification

Features Pin Identification
DDR3 Industrial Registered DIMM
DDR3 Industrial Registered DIMM is high-speed, low power memory
module that use DDR3 SDRAM in FBGA package, 1 pcs register in
TFBGA package and a 2048 bits serial EEPROM on a 240-pin printed
circuit board. DDR3 Industrial Registered DIMM is a Dual In-Line Memory
Module and is intended for mounting into 240-pin edge connector
sockets.
Synchronous design allows precise cycle control with the use of system
clock. Data I/O transactions are possible on both edges of DQS. Range
of operation frequencies, programmable latencies allow the same device
to be useful for a variety of high bandwidth, high performance memory
system applications.
Features
•
Operating Temperature : -40°C to +85°C
•
Gold plating of PCB gold finger is 30u
•
RoHS compliant products.
•
JEDEC standard 1.5V ± 0.075V Power supply
•
VDDQ=1.5V ± 0.075V
•
Clock Freq: 667MHZ for 1333Mb/s/Pin.
800MHZ for 1600Mb/s/Pin.
•
Programmable CAS Latency: 6, 7, 8, 9, 10, 11
•
Programmable Additive Latency (Posted /CAS):
0,CL-2 or CL-1 clock
Pin Identification
Symbol
Function
A0~A15, BA0~BA2
Address/Bank input
DQ0~DQ63
DQS0~DQS8,
/DQS0~/DQS8
CB0~CB7
Bi-direction data bus.
Data strobes
CK0, /CK0
Data Check Bits
Parity bit for address and Control
bus
Clock Input. (Differential pair)
CKE0, CKE1
Clock Enable Input.
Par-In
ODT0, ODT1
On-die termination control line
/S0, /S1, /S2, /S3
DIMM rank select lines.
= 7 (DDR3-1333), 8 (DDR3-1600)
/RAS
Row address strobe
•
8 bit pre-fetch
/CAS
Column address strobe
•
Burst Length: 4, 8
/WE
Write Enable
DM0~DM8
Data masks/high data strobes
•
Bi-directional Differential Data-Strobe
VDD
Core power supply
•
On DIMM thermal Sensor
VSS
Ground
•
Internal calibration through ZQ pin
VREFDQ, VREFCA
•
On Die Termination with ODT pin
•
Serial presence detect with EEPROM
VDDSPD
I/O reference supply
Parity error found on address and
control bus
SPD EEPROM power supply
•
Asynchronous reset
SA0~SA2
Address select for EEPROM
SCL
Clock for EEPROM
SDA
Data for EEPROM
•
Programmable /CAS Write Latency (CWL)
/ERROUT
/EVENT
Temperature Event Pin
/RESET
Set DRAMs Known State
VTT
SDRAM I/O termination supply
NC
No Connection
Dimensions (Unit: millimeter)
Note:
1. Tolerances on all dimensions +/-0.15mm unless otherwise specified.
Pin Assignments
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