ICS9EX21801AKLFT IDT, Integrated Device Technology Inc, ICS9EX21801AKLFT Datasheet - Page 2

• Manufacturer Part Number: ICS9EX21801AKLFT
• Description: IC FANOUT BUFF DIFF 20-VFQFPN
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of ICS9EX21801AKLFT

• Input: *
• Output: Clock
• Frequency - Max: 400MHz
• Voltage - Supply: *
• Operating Temperature: *
• Mounting Type: Surface Mount
• Package / Case: *
• Frequency-max: 400MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 9EX21801AKLFT

Pin Configuration
HIBW_BYPM_LOBW# Selection (Pin 63)
IDT
Notes:100M_133M#
1. Latch selects between 100 and 133 MHz.
2. Writing Byte 0 bits (2:0) can select other frequencies.
Frequency/Functionality Table
(100_133M#
ICS9EX21801A
18 Output PCIe G2/QPI Differential Buffer with 2:1 input mux
This is equivalent to FSC in CK410B+/CK509B FS table.
These frequencies are not characterized in PLL Mode
TM
Byte 0,
Latch)
bit 2
18 Output PCIe G2/QPI Differential Buffer with 2:1 input mux
State
1
0
0
0
0
1
1
1
High
Low
Mid
Byte 0,
bit 1
FSB
1.2<Vin<1.8V
0
0
1
1
0
0
1
1
Vin > 2.0V
Voltage
<0.8V
DIF_10#
DIF_11#
DIF_12#
DIF_13#
DIF_14#
DIF_10
DIF_11
DIF_12
DIF_13
DIF_14
Byte 0,
OE10#
OE11#
OE12#
OE13#
OE14#
bit 0
FSA
GND
VDD
VDD
1
1
1
0
0
0
0
1
Low BW
High BW
10
11
12
13
14
15
16
17
18
Bypass
1
2
3
4
5
6
7
8
9
Mode
100.00
133.33
166.67
200.00
266.67
333.33
400.00
Input
72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
MHz
Reserved
100.00
133.33
166.67
200.00
266.67
333.33
400.00
DIF_x
MHz
Notes
72-pin MLF
9EX21801AKLF
1
1
2
2
2
2
2
2
Power Groups
Power Down Functionality
SMBus Address Selection (pins 66, 67)
1,12,21,35,43,55
CKPWRGD/PD#
SMB_A1
VDD
0
0
1
1
29
1
0
Pin Number
INPUTS
SMB_A0
Running
11,32,44
Input
GND
X
54 DIF_6#
53 DIF_6
52 OE6#
51 DIF_5#
50 DIF_5
49 OE5#
48 DIF_4#
47 DIF_4
46 DIF_3#
45 DIF_3
44 GND
43 VDD
42 DIF_2#
41 DIF_2
40 DIF_1#
39 DIF_1
38 DIF_0#
37 DIF_0
0
1
0
1
28
Main PLL, Analog
Address
OUTPUTS
Description
DIF clocks
Running
DA
DIF_x
D4
D6
D8
Hi-Z
1463B — 01/20/10
Datasheet
PLL State
OFF
ON