74SSTUBF32868ABKG IDT, Integrated Device Technology Inc, 74SSTUBF32868ABKG Datasheet - Page 2

• Manufacturer Part Number: 74SSTUBF32868ABKG
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 74SSTUBF32868ABKG

• Logic Family: SSTU
• Logical Function: Registered Buffer
• Number Of Elements: 1
• Number Of Bits: 28
• Number Of Inputs: 28
• Number Of Outputs: 56
• High Level Output Current: -6mA
• Low Level Output Current: 6mA
• Propagation Delay Time: 3ns
• Operating Supply Voltage (typ): 1.8V
• Operating Supply Voltage (max): 1.9V
• Operating Supply Voltage (min): 1.7V
• Clock-edge Trigger Type: Posit/Negat-Edge
• Polarity: Invert/Non-Invert
• Technology: CMOS
• Frequency (max): 410(Min)MHz
• Mounting: Surface Mount
• Pin Count: 176
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

Features
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Block Diagram
28-BIT CONFIGURABLE REGISTERED BUFFER FOR DDR2
IDT74SSTUBF32868A
28-BIT CONFIGURABLE REGISTERED BUFFER FOR DDR2
28-bit 1:2 registered buffer with parity check functionality
Supports SSTL_18 JEDEC specification on data inputs
and outputs
Supports LVCMOS switching levels on CSGEN and
RESET inputs
Low voltage operation: V
Available in 176-ball LFBGA package
DCKE0,
DCKE1
DODT0,
DODT1
CSGEN
DCS0
DCS1
RESET
V
CLK
REF
CLK
D1
DD
A5, AB5
D1, C1
N1, P1
M2
M1
K1
A2
L1
L2
J1
= 1.7V to 1.9V
2
2
(D2-D5, D7, D9-D12, D17-D28)
TO 21 OTHER CHANNELS
2
2
2
Applications
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DDR2 Memory Modules
Provides complete DDR DIMM solution with
ICS98ULPA877A or IDTCSPUA877A
Ideal for DDR2 667 and 800
One of 22 Channels
D
D
D
D
D
R
R
R
R
R
CK
CK
CK
CK
CK
CE
Q
Q
Q
Q
Q
COMMERCIAL TEMPERATURE GRADE
2
2
N2, P2
F2, E2
M7, M8
H8, F8
A7
K2
L7
A8
J2
L8
IDT74SSTUBF32868A
QCKE0A,
QCKE1A
QCKE0B,
QCKE1B
QODT0A,
QODT1A
QODT0B,
QODT1B
QCS0A
QCS0B
QCS1A
QCS1B
Q1A
Q1B
7068/10