參數(shù)資料
型號(hào)： 74CB3T3306DCURE4
廠商： Texas Instruments
文件頁(yè)數(shù)： 1/15頁(yè)
文件大?。?/td> 0K
描述： IC FET BUS SWITCH DUAL US8
標(biāo)準(zhǔn)包裝： 3,000
系列： 74CB
類(lèi)型： FET 總線開(kāi)關(guān)
電路： 1 x 1:1
獨(dú)立電路： 2
輸出電流高，低： 32mA，64mA
電壓電源： 單電源
電源電壓： 2.3 V ~ 3.6 V
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 8-VFSOP（0.091"，2.30mm 寬）
供應(yīng)商設(shè)備封裝： US8
包裝： 帶卷 (TR)
DCT OR DCU PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
1OE
1A
1B
GND
VCC
2OE
2B
2A
SCDS119B – JANUARY 2003 – REVISED AUGUST 2012
DUAL FET BUS SWITCH 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH
WITH 5-V TOLERANT LEVEL SHIFTER
Check for Samples: SN74CB3T3306
1
FEATURES
VCC Operating Range From 2.3 V to 3.6 V
Data I/Os Support 0- to 5-V Signaling Levels
Output Voltage Translation Tracks VCC
(0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
Supports Mixed-Mode Signal Operation
Control Inputs Can Be Driven by TTL or
on All Data I/O Ports
5-V/3.3-V CMOS Outputs
–
5-V Input Down to 3.3-V Output Level
Ioff Supports Partial-Power-Down Mode
Shift With 3.3-V VCC
Operation
–
5-V/3.3-V Input Down to 2.5-V Output
Latch-Up Performance Exceeds 250 mA Per
Level Shift With 2.5-V VCC
JESD 17
5-V Tolerant I/Os With Device Powered Up
ESD Performance Tested Per JESD 22
or Powered Down
–
2000-V Human-Body Model
Bidirectional Data Flow With Near-Zero
(A114-B, Class II)
Propagation Delay
–
1000-V Charged-Device Model (C101)
Low ON-State Resistance (ron)
Characteristics (ron = 5 Typ)
Supports Digital Applications: Level
Translation, USB Interface, Bus Isolation
Low Input/Output Capacitance Minimizes
Loading (Cio(OFF) = 4.5 pF Typ)
Ideal for Low-Power Portable Equipment
Data and Control Inputs Provide
Undershoot Clamp Diodes
Low Power Consumption
(ICC = 20 μA Max)
DESCRIPTION/ORDERING INFORMATION
The SN74CB3T3306 is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing
for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by
providing voltage translation that tracks VCC. The SN74CB3T3306 supports systems using 5-V TTL, 3.3-V
LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1).
The SN74CB3T3306 is organized as two 1-bit bus switches with separate ouput-enable (1OE, 2OE) inputs. It
can be used as two 1-bit bus switches or as one 2-bit bus switch. When OE is low, the associated 1-bit bus
switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE
is high, the associated 1-bit bus switch is OFF, and a high-impedance state exists between the A and B ports.
1
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 2003–2012, 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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