PRELIMINARY INFORMATION - COMPANY CONFIDENTIAL
A product Line of
Pb
Diodes Incorporated
Lead-free Green
PI6C4931504-04
High Performance HCSL Fanout Buffer
Features Description
4 HCSL outputs e PTh I6C4931504-04 is a high performance fanout buffer device
which supports up to 250MHz frequency. This device is ideal for
Up to 250MHz output frequency
systems that need to distribute low jitter clock signals to multiple
Ultra low additive phase jitter: < 0.1 ps (typ)
destinations.
Two selectable inputs
Low delay from input to output (Tpd typ. 1.5ns)
Applications
2.5V / 3.3V power supply
Networking systems including switches and Routers
Industrial temperature support
High frequency backplane based computing and telecom
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
platforms
Halogen and Antimony Free. Green Device (Note 3)
TSSOP-20 package
Block Diagram Pin Configuration (20-Pin TSSOP)
GND 20
1 Q0
Pullup
D
CLK_EN
CLK_EN 19 nQ0
2
Q
LE
Q0
CLK_SEL 18
3 V
DD
nQ0
Pulldown 17
CLK0 4 Q1
CLK0
Pullup/ Pulldown
0
nCLK0
16
Q1 nCLK0 5 nQ1
nQ1
Pulldown
15
CLK1 1 CLK1 6 Q2
Q2 14
NC 7 nQ2
nQ2
Pulldown
NC 8 13 V
CLK_SEL DD
Q3 12
IREF 9 Q3
nQ3
Iref
V 10 11 nQ3
DD
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See PRELIMINARY INFORMATION - COMPANY CONFIDENTIAL
A product Line of
Diodes Incorporated
PI6C4931504-04
Pin Description
Pin # Pin Name Type Description
1 GND Power Ground
2 CLK_EN Input Clock output enable/ disable
3 CLK_SEL Input Clock input source selection pin
CLK0
4, 5 Input Clock input
nCLK0
6 CLK1 Input Clock input
7, 8 NC - No connect
9 IREF Power External resistor connection to set differential output current
10, 13, 18 V Power Power supply
DD
nQ3
11, 12 Output HCSL output clock
Q3
nQ2
14, 15 Output HCSL output clock
Q2
nQ1
16, 17 Output HCSL output clock
Q1
nQ0
19, 20 Output HCSL output clock
Q0
Function Table
Table 1: Input select function
CLK_SEL Function
0 CLK0, nCLK0
1 CLK1
Table 2: Output Enable function
CLK_EN Outputs
Q0:Q4 nQ0:nQ4
0 Disabled; LOW Disabled; HIGH
1 Enabled Enabled
www.diodes.com July 2018
PI6C4931504-04
2
Diodes Incorporated
Document Number DS41269 Rev 1-2 2