SN74CBT16811C Datasheet, PDF (1/11 Pages) Texas Instruments – 24-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS 5-V BUS SWITCH WITH-2-V UNDERSHOOT PROTECTION

SN74CBT16811C
24ĆBIT FET BUS SWITCH WITH PRECHARGED OUTPUTS
5ĆV BUS SWITCH WITH ć2ĆV UNDERSHOOT PROTECTION
SCDS118C − JANUARY 2003 − REVISED OCTOBER 2003
D Member of the Texas Instruments
Widebus Family
D Undershoot Protection for Off-Isolation on
A and B Ports Up To −2 V
D B-Port Outputs Are Precharged by Bias
Voltage (BIASV) to Minimize Signal
Distortion During Live Insertion and
Hot-Plugging
D Supports PCI Hot Plug
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) = 5.5 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
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
BIASV ¹
1A1 ²
1A2 ³
1A3 ⁴
1A4 ⁵
1A5 ⁶
1A6 ⁷
GND ⁸
1A7 ⁹
1A8 ¹⁰
1A9 ¹¹
1A10 ¹²
1A11 ¹³
1A12 ¹⁴
2A1 ¹⁵
2A2 ¹⁶
V_CC ¹⁷
2A3 ¹⁸
GND ¹⁹
2A4 ²⁰
2A5 ²¹
2A6 ²²
2A7 ²³
2A8 ²⁴
2A9 ²⁵
2A10 ²⁶
2A11 ²⁷
2A12 ²⁸
56 1OE
55 _2OE
54 _1B1
53 _1B2
52 _1B3
51 _1B4
50 _1B5
49 _GND
48 _1B6
47 _1B7
46 _1B8
45 _1B9
44 _1B10
43 _1B11
42 _1B12
41 _2B1
40 _2B2
39 _2B3
38 _GND
37 _2B4
36 _2B5
35 _2B6
34 _2B7
33 _2B8
32 _2B9
31 _2B10
30 _2B11
29 _2B12
description/ordering information
The SN74CBT16811C 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
SN74CBT16811C 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 device also precharges the B port to a user-selectable bias
voltage (BIASV) to minimize live-insertion noise.
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.
Widebus is a trademark of Texas Instruments.
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.
Copyright  2003, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1