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SSTVN16857 Datasheet

  • SSTVN16857

  • 14-Bit Register with SSTL-2 Compatible I/O and Reset

  • 7頁(yè)

  • FAIRCHILD

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SSTV16857 鈥?SSTVN16857 14-Bit Register with SSTL-2 Compatible I/O and Reset
September 2000
Revised June 2005
SSTV16857 鈥?SSTVN16857
14-Bit Register with SSTL-2 Compatible I/O and Reset
General Description
The SSTV16857 is a 14-bit register designed for use with
184 and 232 pin PC1600, 2100, and 2700 DDR DIMM
applications. The SSTVN16857 is a 14-bit register
designed for use with 184 and 232 pin PC3200 DDR DIMM
applications. These devices have a differential input clock,
SSTL-2 compatible data inputs and a LVCMOS compatible
RESET input. These devices have been designed for com-
pliance with the JEDEC DDR module and register specifi-
cations.
The devices are fabricated on an advanced submicron
CMOS process and are designed to operate at power sup-
plies of less than 3.6V鈥檚.
Features
s
Compliant with DDR-I registered module specifications
s
Operates at 2.5V
r
0.2V V
DD
s
SSTL-2 compatible input and output structure
s
Differential SSTL-2 compatible clock inputs
s
Low power mode when device is reset
s
Industry standard 48 pin TSSOP package
Ordering Code:
Order Number
SSTV16857MTD
SSTVN16857MTD
(Preliminary)
Package Number
MTD48
MTD48
Package Description
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Connection Diagram
Pin Descriptions
Pin Name
Q
1
-Q
14
D
1
-D
14
RESET
CK
CK
V
REF
V
DDQ
V
DD
Description
SSTL-2 Compatible Output
SSTL-2 Compatible Inputs
Asynchronous LVCMOS Reset Input
Positive Master Clock Input
Negative Master Clock Input
Voltage Reference Pin for SSTL Level Inputs
Power Supply Voltage for Output Signals
Power Supply Voltage for Inputs
Truth Table
RESET
L
H
H
H
H
D
n
X or
Floating
L
H
X
X
CK
X or
Floating
CK
X or
Floating
Q
n
L
L
H
Q
n
Q
n
n
n
L
H
p
p
H
L
L Logic LOW
H Logic HIGH
X Don鈥檛 Care, but not floating unless noted
n
LOW-to-HIGH Clock Transition
p
HIGH-to-LOW Clock Transition
漏 2005 Fairchild Semiconductor Corporation
DS500387
www.fairchildsemi.com

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