W256H Cypress Semiconductor Corp, W256H Datasheet - Page 6

• Manufacturer Part Number: W256H
• Description: IC CLK BUFF 12OUT SDRAM 28SSOP
• Manufacturer: Cypress Semiconductor Corp
• Type: Fanout Buffer (Distribution)r

Specifications of W256H

• Number Of Circuits: 1
• Ratio - Input:output: 1:12
• Differential - Input:output: No/No
• Input: DDR, SDRAM
• Output: DDR, SDRAM
• Frequency - Max: 180MHz
• Voltage - Supply: 2.375 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Frequency-max: 180MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1399

Document #: 38-07256 Rev. *C
Switching Waveforms
Figure 1 shows the differential clock directly terminated by a
120 Ω resistor.
SDRAM Buffer HH and LL Propagation Delay
OUTPUT
INPUT
Device
Under
Test
1.5V
t
6
V
CC
Out
Out
(continued)
1.5V
Figure 1. Differential Signal Using Direct Termination Resistor
V
C
C
t
7
)
)
60 Ω
60Ω
R
T
VTR
VCP
=120Ω
Receiver
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