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參數(shù)資料
| 型號(hào)： | CBTW28DD14ET |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 編、解碼器及復(fù)用、解復(fù)用 |
| 英文描述： | 14-bit bus switch-multiplexer for DDR2-DDR3 applications |
| 中文描述： | MULTIPLEXER, PBGA48 |
| 封裝： | 4.50 X 4.50 MM, 0.80 MM PITCH, 0.50 MM PITCH, GREEN, PLASTIC, SOT1155-1, TFBGA-48 |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大?。?/td> | 267K |
| 代理商： | CBTW28DD14ET |
CBTW28DD14
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 1 — 20 July 2010
4 of 12
NXP Semiconductors
CBTW28DD14
14-bit bus switch/multiplexer for DDR2-DDR3 applications
7.
Functional description
Refer to Figure 1 “Functional diagram”.
The CBTW28DD14 uses a 1.5 V or 1.8 V power supply. All signal paths are implemented
using high-bandwidth pass-gate technology and are non-directional. No clock or reset
signal is needed for the multiplexer to function. The switch position for the channels is
selected using the select signal SEL. The detailed operation is described in Section 7.1.
7.1 Function selection
The internal multiplexer switch position is controlled by two logic inputs, SEL and EN, as
described in Table 3.
8.
Limiting values
[1]
Human Body Model: ANSI/EOS/ESD-S5.1-1994, standard for ESD sensitivity testing. Human Body Model -
Component level; Electrostatic Discharge Association, Rome, NY, USA.
[2]
Charged-Device Model: ANSI/EOS/ESD-S5.3-1-1999, standard for ESD sensitivity testing,
Charged-Device Model - Component level; Electrostatic Discharge Association, Rome, NY, USA.
9.
Recommended operating conditions
Table 3.
Function selection
X = don’t care.
Inputs
Switch position
EN
SEL
A
B
A
C
LOW
X
OFF (isolating)
HIGH
LOW
ON (conducting)
OFF (isolating)
HIGH
OFF (isolating)
ON (conducting)
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
Min
Max
Unit
VDD
supply voltage
0.3
+2.5
V
Tcase
case temperature
for operation within
specification
40
+85
°C
VESD
electrostatic discharge
voltage
HBM
[1] -
3000
V
CDM
[2] -
1000
V
Table 5.
Operating conditions
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDD
supply voltage
1.4
1.5 or
1.8
2.0
V
VI
input voltage
all inputs
0.3
-
VDD +0.3
V
Tamb
ambient temperature
operating in free air
10
-
+85
°C
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