CY2304NZ
Four Output PCI-X and
General Purpose Buffer
Four Output PCI-X and General Purpose Buffer
Features
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■
■
■
■
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Functional Description
The CY2304NZ is a low-cost buffer designed to distribute
high-speed clocks for PCI-X and other applications. The device
operates at 3.3 V and outputs can run up to 140 MHz.
Table 1. Function Table
Inputs
BUF_IN
L
H
L
H
OE
L
L
H
H
Outputs
Output [1:4]
L
L
L
H
One input to four output buffer/driver
General-purpose or PCI-X clock buffer
Buffers all frequencies from DC to 140 MHz
Output-to-output skew less than 100 ps
Space-saving 8-pin TSSOP package
3.3 V operation
60 ps typical output-output skew
Block Diagram
OE
BUF_IN
OUTPUT1
OUTPUT2
OUTPUT3
OUTPUT4
Logic
Control
Pin Configuration
8-pin TSSOP
Top View
BUF_IN
OE
OUTPUT1
GND
1
2
3
4
8
7
6
5
OUTPUT4
OUTPUT3
VDD
OUTPUT2
Pin Description
For CY2304NZ
Signal
V
DD
GND
BUF_IN
OUTPUT [1:4]
OE
Pin
6
4
1
3, 5, 7, 8
2
3.3 V voltage supply
Ground
Input clock
Outputs
Input pin for output enable, active HIGH.
San Jose
,
CA 95134-1709
Description
Cypress Semiconductor Corporation
Document Number: 38-07099 Rev. *F
•
198 Champion Court
•
•
408-943-2600
Revised April 8, 2013
CY2304NZ
Maximum Ratings
Supply Voltage to Ground Potential .... –0.5 V to V
DD
+ 0.5 V
DC Input Voltage ................................ –0.5 V to V
DD
+ 0.5 V
Storage Temperature ............................... –65 °C to +150 °C
Max. Soldering Temperature (10 sec.) ...................... 260 °C
Junction Temperature ................................................ 150 °C
Operating Conditions
Parameter
V
DD
T
A
C
L
C
IN
Supply Voltage
Operating Temperature (Ambient Temperature)
Load Capacitance
Input Capacitance
Description
Min
3.0
–40
–
–
DC
0.05
Max
3.6
85
25
7
140
50
Unit
V
°C
pF
pF
MHz
ms
BUF_IN,
Operating Frequency
OUTPUT [1:4]
t
PU
Power-up time for all VDD’s to reach minimum specified voltage (power ramps must
be monotonic)
Electrical Characteristics
Parameter
V
IL
V
IH
I
IL
I
IH
V
OL
V
OH
I
DD
Description
Input LOW Voltage
[1]
Input HIGH Voltage
[1]
Input LOW Current
Input HIGH Current
Output LOW Voltage
[2]
Output HIGH Voltage
[2]
Supply Current
V
IN
= 0 V
V
IN
= V
DD
I
OL
= 24 mA
I
OL
= 12 mA
I
OH
= –24 mA
I
OH
= –12 mA
Unloaded outputs at 66.66 MHz
Test Conditions
Min
–
2.0
–5
–5
–
–
2.0
2.4
–
Max
0.8
–
5
5
0.8
0.55
–
–
25
Unit
V
V
A
A
V
V
V
V
mA
Switching Characteristics
For Commercial and Industrial Temperature Devices
Parameter
[3]
t
3
t
4
t
5
t
6
Rise Time
[2]
Fall Time
[2]
Output to Output Skew
[2]
Name
Duty Cycle
[2]
= t
2
t
1
Description
Measured at 1.5 V
Measured between 0.8 V and 2.0 V
Measured between 0.8 V and 2.0 V
All outputs equally loaded
Min
40.0
–
–
–
2.5
Typ
50.0
–
–
60
3.5
Max
60.0
1.50
1.50
100
5
Unit
%
ns
ns
ps
ns
Propagation Delay,
Measured at V
DD
/2
BUF_IN Rising Edge to
OUTPUT
Rising Edge
[2]
Notes
1. BUF_IN input has a threshold voltage of V
DD
/2.
2. Parameter is guaranteed by design and characterization. It is not 100% tested in production.
3. All parameters specified with loaded outputs.
Document Number: 38-07099 Rev. *F
Page 2 of 8
CY2304NZ
Switching Waveforms
Figure 1. Duty Cycle Timing
t
1
t
2
1.5 V
1.5 V
1.5 V
Figure 2. All Outputs Rise/Fall Time
3.3 V
0V
OUTPUT
2.0 V
0.8 V
t
3
2.0 V
0.8 V
t
4
Figure 3. Output-Output Skew
OUTPUT
1.5 V
OUTPUT
t
5
1.5 V
Figure 4. Input-Output Propagation Delay
INPUT
V
DD
/2
OUTPUT
t
6
V
DD
/2
Document Number: 38-07099 Rev. *F
Page 3 of 8
CY2304NZ
Ordering Information
Ordering Code
Standard
CY2304NZZI-1
CY2304NZZI-1T
Pb-free
CY2304NZZXC-1
CY2304NZZXC-1T
CY2304NZZXI-1
CY2304NZZXI-1T
8-pin TSSOP
8-pin TSSOP – Tape and Reel
8-pin TSSOP
8-pin TSSOP – Tape and Reel
Commercial, 0 °C to 70 °C
Commercial, 0 °C to 70 °C
Industrial, –40 °C to 85 °C
Industrial, –40 °C to 85 °C
8-pin TSSOP
8-pin TSSOP – Tape and Reel
Industrial, –40 °C to 85 °C
Industrial, –40 °C to 85 °C
Package Type
Operating Range
Ordering Code Definitions
CY 2304NZ Z
X
X - X
X
X = blank or T
blank = Tube; T = Tape and Reel
X = 1 or 2
Temperature Range: X = C or I
C = Commercial; I = Industrial
X = Pb-free
Package Type:
Z = 8-pin TSSOP
Base Device Part Number
Company ID: CY = Cypress
Document Number: 38-07099 Rev. *F
Page 4 of 8
CY2304NZ
Package Diagram
Figure 5. 8-pin TSSOP (4.40 mm Body) Z08.173/ZZ08.173 Package Outline, 51-85093
51-85093 *D
Document Number: 38-07099 Rev. *F
Page 5 of 8
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