SN74CBTD3305CPWR ,Dual FET Bus Switch with -2 V Undershoot-Protection and Level Shiftingmaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
SN74CBTD3305CPWRG4 ,Dual FET Bus Switch with -2 V Undershoot-Protection and Level Shifting 8-TSSOP -40 to 85SN74CBTD3305CDUAL FET BUS SWITCH WITH LEVEL SHIFTING5-V BUS SWITCH WITH –2-V UNDERSHOOT PROTECTIONS ..
SN74CBTD3306CDR ,Dual FET Bus Switch With Level Shifting and -2 V Undershoot Protection/sc/package.Please be aware that an important notice concerning availability, standard warranty, an ..
SN74CBTD3306CPW ,Dual FET Bus Switch With Level Shifting and -2 V Undershoot Protectionfeatures an integrated diode in series with V to provideCClevel shifting for 5-V input down to 3.3- ..
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SN74CBTD3305CD-SN74CBTD3305CDR-SN74CBTD3305CPW-SN74CBTD3305CPWR-SN74CBTD3305CPWRG4
Dual FET Bus Switch with -2 V Undershoot-Protection and Level Shifting
SN74CBTD3305C
DUAL FET BUS SWITCH WITH LEVEL SHIFTING
5-V BUS SWITCH WITH –2-V UNDERSHOOT PROTECTION
SCDS126A − SEPTEMBER 2003 − REVISED OCTOBER 2003
Undershoot Protection for Off-Isolation on
A and B Ports Up To −2 V Integrated Diode to VCC Provides 5-V Input
Down To 3.3-V Output Level Shift Bidirectional Data Flow, With Near-Zero
Propagation Delay Low ON-State Resistance (ron)
Characteristics (ron = 3 Ω Typical) Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
(Cio(OFF) = 5 pF Typical) Data and Control Inputs Provide
Undershoot Clamp Diodes VCC Operating Range From 4.5 V to 5.5 V 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) Control Inputs Can be Driven by TTL or
5-V/3.3-V CMOS Outputs Ioff Supports Partial-Power-Down Mode
Operation Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II ESD Performance Tested Per JESD 22
− 2000-V Human-Body Model
(A114-B, Class II)
− 1000-V Charged-Device Model (C101) Supports Both Digital and Analog
Applications: USB Interface, Memory
Interleaving, Bus Isolation, Low-Distortion
Signal Gating
D OR PW PACKAGE
(TOP VIEW)1OE
GND
VCC
2OE
description/ordering informationThe SN74CBTD3305C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron),
allowing for minimal propagation delay. This device features an integrated diode in series with VCC to provide
level shifting for 5-V input down to 3.3-V output levels. Active Undershoot-Protection Circuitry on the A and B
ports of the SN74CBTD3305C provides protection for undershoot up to −2 V by sensing an undershoot event
and ensuring that the switch remains in the proper OFF state.
The SN74CBTD3305C is organized as two 1-bit bus switches with separate output-enable (1OE, 2OE) inputs.
It can be used as two 1-bit bus switches or as one 2-bit bus switch. When OE is high, 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 low, the associated 1-bit bus switch is OFF, and a high-impedance state exists between the A and B ports.
ORDERING INFORMATION Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
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.
