IDT74SSTUBH32868ABKG IDT, Integrated Device Technology Inc, IDT74SSTUBH32868ABKG Datasheet - Page 2

• Manufacturer Part Number: IDT74SSTUBH32868ABKG
• Description: IC BUFFER 28BIT CONF DDR2 176BGA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT74SSTUBH32868ABKG

• Logic Type: 1:1, 1:2 Configurable Registered Buffer
• Supply Voltage: 1.7 V ~ 1.9 V
• Number Of Bits: 28
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 176-BGA
• Logic Family: SSTU
• Logical Function: Registered Buffer
• Number Of Elements: 1
• Number Of Inputs: 28
• Number Of Outputs: 56
• High Level Output Current: -12mA
• Low Level Output Current: 12mA
• 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: Lead free / RoHS Compliant
• Other names: 74SSTUBH32868ABKG

Features
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Block Diagram
28-BIT CONFIGURABLE REGISTERED BUFFER FOR DDR2
IDT74SSTUBH32868A
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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Twice the output drive to support heavily loaded RDIMMs
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
IDT74SSTUBH32868A
QCKE0A,
QCKE1A
QCKE0B,
QCKE1B
QODT0A,
QODT1A
QODT0B,
QODT1B
QCS0A
QCS0B
QCS1A
QCS1B
Q1A
Q1B
7105/7