PI6C180VE Pericom Semiconductor, PI6C180VE Datasheet

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PI6C180VE

Manufacturer Part Number
PI6C180VE
Description
IC 1:18 CLOCK BUFFER 48-SSOP
Manufacturer
Pericom Semiconductor
Type
Fanout Buffer (Distribution)r
Datasheet

Specifications of PI6C180VE

Number Of Circuits
1
Ratio - Input:output
1:18
Differential - Input:output
No/No
Input
TTL
Output
TTL
Frequency - Max
100MHz
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
48-SSOP
Frequency-max
100MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
• High-speed, to 100 MHz
• Low-noise non-inverting 1-18 buffer
• Supports up to four SDRAM DIMMs
• Low skew (< 250ps) between any two output clocks
• I
• Multiple V
• 3.3V power supply voltage
• Separate Hi-Z pin for testing
• Packaging:
Block Diagram
- 48-pin SSOP (V)
2
C Serial Configuration interface
BUF_IN
DD
SCLOCK
, V
SDATA
SS
OE
pins for noise reduction
I 2 C
I/O
SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM17
1
Description
The PI6C180, a high-speed low-noise 1-18 non-inverting buffer
designed for SDRAM clock buffer applications operates up to
100 MHz.
At power up all SDRAM output are enabled and active. The I
Serial control may be used to individually activate/deactivate any
of the 18 output drivers.
The output enable (OE) pin may be pulled low to put all outputs
in a Hi-Z state.
Note:
Purchase of I
use them in an I
Pin Configuration
SDRAM16
SDRAM2
SDRAM3
SDRAM6
SDRAM7
SDRAM0
SDRAM1
SDRAM4
SDRAM5
2
BUF_IN
C components from Pericom conveys a license to
SDATA
V
2
V
V
V
V
V
V
V
V
C system as defined by Philips.
V
V
DDIIC
DD1
DD3
DD4
DD0
DD2
SS0
SS1
SS3
NC
NC
SS2
SS4
Precision 1-18 Clock Buffer
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
NC
NC
V
SDRAM15
SDRAM14
V
V
SDRAM13
SDRAM12
V
OE
V
SDRAM11
SDRAM10
V
V
SDRAM9
SDRAM8
V
V
SDRAM17
V
V
SCLOCK
DD9
SS9
DD8
SS8
DD7
SS7
DD6
SS6
DD5
SS5
SSIIC
PS8141F
PI6C180
12/13/04
2
C

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PI6C180VE Summary of contents

Page 1

Features • High-speed, to 100 MHz • Low-noise non-inverting 1-18 buffer • Supports up to four SDRAM DIMMs • Low skew (< 250ps) between any two output clocks 2 • Serial Configuration interface • Multiple ...

Page 2

Pin Description Pin Symbol SDRAM[0-3] 13, 14, 17, 18 SDRAM[4-7] 31, 32, 35, 36 SDRAM[8-11] 40, 41, 44, 45 SDRAM[12-15] 21, 28 SDRAM[16-17] 11 Buf_IN DATA 25 S CLOCK 3, 7, 12, ...

Page 3

I C Control 2 The I C interface permits individual enable/disable of each clock output and test mode enable. The PI6C180 is a slave receiver device. It can not be read back. Sub addressing is not supported. All ...

Page 4

DC Operating Specifications Symbol Parameter Input Voltage V Input High voltage IH V Input Low voltage IL I Input leakage current IL V [0-9] = 3.3V ± Output High voltage OH V Output Low voltage OL C Output ...

Page 5

Clocking Interface (TTL) Input Waveform Output Waveform Minimum & Maximum Expected Capacitive Loads Min. Max. Clock Units Load Load SDRAM Notes: 1. Maximum rise/fall times are guaranteed at maximum specified load. 2. Minimum rise/fall times are ...

Page 6

PCB Layout Suggestion C1 VDD VSS C2 VDD VSS C3 VDD VSS C4 VDD VSS C5 VDD VSS C6 VDD Notes: 1. This is only a suggested layout. There may be alternate solutions depending on actual PCB design and layout. ...

Page 7

... Packaging Mechanical: 48-Pin SSOP ( X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Ordering Information Ordering Code PI6C180V PI6C180VE Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com .395 .420 10.03 .291 10.67 .299 7.39 7.59 Gauge Plane ...

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