參數(shù)資料
型號： SN74CB3Q3251DGVR
廠商： TEXAS INSTRUMENTS INC
元件分類： 編、解碼器及復(fù)用、解復(fù)用
英文描述： CB3Q/3VH/3C/2B SERIES, 1 LINE TO 8 LINE MULTIPLEXER AND DEMUX/DECODER, TRUE OUTPUT, PDSO16
封裝： GREEN, PLASTIC, TVSOP-16
文件頁數(shù)： 1/19頁
文件大小： 693K
代理商： SN74CB3Q3251DGVR
www.ti.com
FEATURES
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
B4
B3
B2
B1
A
NC
OE
GND
VCC
B5
B6
B7
B8
S0
S1
S2
DBQ, DGV, OR PW PACKAGE
(TOP VIEW)
NC - No internal connection
RGY PACKAGE
(TOP VIEW)
1
16
8
9
2
3
4
5
6
7
15
14
13
12
11
10
B5
B6
B7
B8
S0
S1
B3
B2
B1
A
NC
OE
B4
S2
V
GND
CC
NC - No internal connection
DESCRIPTION/ORDERING INFORMATION
SN74CB3Q3251
1-OF-8 FET MULTIPLEXER/DEMULTIPLEXER
2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH
SCDS173A – AUGUST 2004 – REVISED MARCH 2005
Data and Control Inputs Provide Undershoot
Clamp Diodes
High-Bandwidth Data Path (up to 500 MHz (1))
Low Power Consumption (I
CC = 1 mA Typ)
Equivalent to IDTQS3VH251 Device
V
CC Operating Range From 2.3 V to 3.6 V
5-V Tolerant I/Os With Device Powered Up or
Powered Down
Data I/Os Support 0- to 5-V Signaling Levels
(0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
Low and Flat ON-State Resistance (r
on)
Characteristics Over Operating Range
Control Inputs Can Be Driven by TTL or
(r
on = 4 Typ)
5-V/3.3-V CMOS Outputs
Rail-to-Rail Switching on Data I/O Ports
I
off Supports Partial-Power-Down Mode
Operation
– 0- to 5-V Switching With 3.3-V V
CC
Latch-Up Performance Exceeds 100 mA Per
– 0- to 3.3-V Switching With 2.5-V V
CC
JESD 78, Class II
Bidirectional Data Flow With Near-Zero
ESD Performance Tested Per JESD 22
Propagation Delay
– 2000-V Human-Body Model (A114-B,
Low Input/Output Capacitance Minimizes
Class II)
Loading and Signal Distortion
(C
io(OFF) = 3.5 pF Typ)
– 1000-V Charged-Device Model (C101)
Fast Switching Frequency
Supports Both Digital and Analog
(f
OE or fS = 20 MHz Max)
Applications: PCI Interface, Differential Signal
Interface, Memory Interleaving, Bus Isolation,
(1)
For additional information regarding the performance
characteristics of the CB3Q family, refer to the TI application
Low-Distortion Signal Gating
report, CBT-C, CB3T, and CB3Q Signal-Switch Families,
literature number SCDA008.
The SN74CB3Q3251 is a high-bandwidth FET bus switch utilizing a charge pump to elevate the gate voltage of
the pass transistor, providing a low and flat ON-state resistance (ron). The low and flat ON-state resistance allows
for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The device
also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus.
Specifically designed to support high-bandwidth applications, the SN74CB3Q3251 provides an optimized
interface solution ideally suited for broadband communications, networking, and data-intensive computing
systems.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2004–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74CB3Q3251PW 功能描述:多路器開關(guān) IC 1-of-8 FET Mltplxr/Demltplxr RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
SN74CB3Q3251PWE4 功能描述:多路器開關(guān) IC 1-of-8 FET Mltplxr/Demltplxr RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
SN74CB3Q3251PWG4 功能描述:多路器開關(guān) IC 2.5V 3.3V LO VLTG HI BandwidthBus Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
SN74CB3Q3251PWR 功能描述:多路器開關(guān) IC 1-of-8 FET Mltplxr/Demltplxr RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
SN74CB3Q3251PWRE4 功能描述:多路器開關(guān) IC Low-Power RS-485 Transceiver RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
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