ICS9DB823BGLFT IDT, Integrated Device Technology Inc, ICS9DB823BGLFT Datasheet - Page 13

IC PC CLOCK 3.3V 48-TSSOP

ICS9DB823BGLFT

Manufacturer Part Number
ICS9DB823BGLFT
Description
IC PC CLOCK 3.3V 48-TSSOP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Bufferr
Datasheet

Specifications of ICS9DB823BGLFT

Input
Clock
Output
Clock
Frequency - Max
400MHz
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
48-TSSOP
Frequency-max
400MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
9DB823BGLFT
IDT
9DB823B
Eight Output Differential Buffer for PCIe for Gen 1, Gen 2 and QPI
®
How to Write:
• Controller (host) sends a start bit.
• Controller (host) sends the write address DC
• IDT clock will acknowledge
• Controller (host) sends the beginning byte location = N
• IDT clock will acknowledge
• Controller (host) sends the data byte count = X
• IDT clock will acknowledge
• Controller (host) starts sending Byte N through
• IDT clock will acknowledge each byte one at a time
• Controller (host) sends a Stop bit
Eight Output Differential Buffer for PCIe Gen 1, Gen 2 and QPI
Byte N + X -1
WR
P
T
Beginning Byte N
Data Byte Count = X
Index Block Write Operation
Slave Address DC
Beginning Byte = N
Byte N + X - 1
Controller (Host)
General SMBus serial interface information for the 9DB823B
starT bit
stoP bit
WRite
(h)
IDT (Slave/Receiver)
ACK
ACK
ACK
ACK
ACK
(h)
13
How to Read:
• Controller (host) will send start bit.
• Controller (host) sends the write address DC
• IDT clock will acknowledge
• Controller (host) sends the begining byte
• IDT clock will acknowledge
• Controller (host) will send a separate start bit.
• Controller (host) sends the read address DD
• IDT clock will acknowledge
• IDT clock will send the data byte count = X
• IDT clock sends Byte N + X -1
• IDT clock sends Byte 0 through byte X (if X
• Controller (host) will need to acknowledge each byte
• Controller (host) will send a not acknowledge bit
• Controller (host) will send a stop bit
location = N
was written to byte 8)
WR
RD
RT
N
P
T
Index Block Read Operation
Slave Address DC
Beginning Byte = N
Slave Address DD
Controller (Host)
Not acknowledge
ACK
ACK
Repeat starT
starT bit
stoP bit
WRite
ReaD
(h)
(h)
.
IDT (Slave/Receiver)
Data Byte Count = X
Beginning Byte N
Byte N + X - 1
ACK
ACK
ACK
1444D - 08/31/10
(h)
(h)
(h)

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