SN74CBT3384C Datasheet, PDF (1/18 Pages) Texas Instruments – 10-BIT FET BUSSWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

SN74CBT3384C
10ĆBIT FET BUS SWITCH
5ĆV BUS SWITCH WITH ć2ĆV UNDERSHOOT PROTECTION
SCDS132A − SEPTEMBER 2003 − REVISED OCTOBER 2003
D Undershoot Protection for Off-Isolation on
A and B Ports Up To −2 V
D Bidirectional Data Flow, With Near-Zero
Propagation Delay
D Low ON-State Resistance (r_on)
Characteristics (r_on = 3 Ω Typical)
D Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
(C_io(OFF) = 5 pF Typical)
D Data and Control Inputs Provide
Undershoot Clamp Diodes
D Low Power Consumption
(I_CC = 3 µA Max)
D V_CC Operating Range From 4 V to 5.5 V
D 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)
D Control Inputs Can Be Driven by TTL or
5-V/3.3-V CMOS Outputs
D I_off Supports Partial-Power-Down Mode
Operation
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Performance Tested Per JESD 22
− 2000-V Human-Body Model
(A114-B, Class II)
− 1000-V Charged-Device Model (C101)
D Supports Both Digital and Analog
Applications: PCI Interface, Memory
Interleaving, Bus Isolation, Low-Distortion
Signal Gating
DB, DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
1OE ¹
1B1 ²
1A1 ³
1A2 ⁴
1B2 ⁵
1B3 ⁶
1A3 ⁷
1A4 ⁸
1B4 ⁹
1B5 ¹⁰
1A5 ¹¹
GND ¹²
24 _VCC
23 _2B5
22 _2A5
21 _2A4
20 _2B4
19 _2B3
18 _2A3
17 _2A2
16 _2B2
15 _2B1
14 _2A1
13 _2OE
description/ordering information
The SN74CBT3384C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (r_on),
allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the
SN74CBT3384C 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 SN74CBT3384C is organized as two 5-bit bus switches with separate output-enable (1OE, 2OE) inputs.
It can be used as two 5-bit bus switches or as one 10-bit bus switch. When OE is low, the associated 5-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 5-bit bus switch is OFF, and the high-impedance state exists between the A and B
ports.
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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright  2003, Texas Instruments Incorporated
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