SN74CB3Q16245
16-BIT SWITCH
2.5-V/3.3-V LOW-VOLTAGE FET BUS SWITCH
www.ti.com
SCDS171A–JULY 2004–REVISED MARCH 2005
FEATURES
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
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Member of the Texas Instruments Widebus™
Family
1
48
47
46
45
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43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
(1)
NC
1B1
1B2
GND
1B3
1B4
1OE
1A1
1A2
GND
1A3
1A4
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High-Bandwidth Data Path (up to 500 MHz
)
2
5-V Tolerant I/Os With Device Powered Up or
Powered Down
3
4
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Low and Flat ON-State Resistance (ron)
Characteristics Over Operating Range
(ron = 5 Ω Typ)
5
6
7
V
CC
V
CC
Rail-to-Rail Switching on Data I/O Ports
– 0- to 5-V Switching With 3.3-V VCC
– 0- to 3.3-V Switching With 2.5-V VCC
8
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
9
10
11
12
13
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15
16
17
18
19
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22
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24
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Bidirectional Data Flow With Near-Zero
Propagation Delay
Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
(Cio(OFF) = 4 pF Typ)
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Fast Switching Frequency (fOE = 20 MHz Max)
Data and Control Inputs Provide Undershoot
Clamp Diodes
V
CC
V
CC
2B5
2B6
GND
2B7
2B8
NC
2A5
2A6
GND
2A7
2A8
2OE
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Low Power Consumption (ICC = 1 mA Typ)
VCC Operating Range From 2.3 V to 3.6 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)
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Control Inputs Can Be Driven by TTL or
5-V/3.3-V CMOS Outputs
NC - No internal connection
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)
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Supports Both Digital and Analog
Applications: PCI Interface, Differential Signal
Interface, Memory Interleaving, Bus Isolation,
Low-Distortion Signal Gating
(1) For additional information regarding the performance
characteristics of the CB3Q family, refer to the TI application
report, CBT-C, CB3T, and CB3Q Signal-Switch Families,
literature number SCDA008.
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.
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.