SN74CB3T16210 Datasheet, PDF (1/14 Pages) Texas Instruments – 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V-TOLERANT LEVEL SHIFTER

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SN74CB3T16210
20-BIT FET BUS SWITCH
2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V-TOLERANT LEVEL SHIFTER
SCDS156A – OCTOBER 2003 – REVISED MARCH 2005
FEATURES
• Member of the Texas Instruments Widebus™
Family
• Output Voltage Translation Tracks V_CC
• Supports Mixed-Mode Signal Operation on All
Data I/O Ports
– 5-V Input Down to 3.3-V Output Level Shift
With 3.3-V V_CC
– 5-V/3.3-V Input Down to 2.5-V Output Level
Shift With 2.5-V V_CC
• 5-V-Tolerant I/Os With Device Powered Up or
Powered Down
• Bidirectional Data Flow With Near-Zero
Propagation Delay
• Low ON-State Resistance (r_on) Characteristics
(r_on = 5 Ω Typ)
• Low Input/Output Capacitance Minimizes
Loading (C_io(OFF) = 5 pF Typ)
• Data and Control Inputs Provide Undershoot
Clamp Diodes
• Low Power Consumption
(I_CC = 40 µA Max)
• V_CC 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)
• Control Inputs Can Be Driven by TTL or
5-V/3.3-V CMOS Outputs
• I_off Supports Partial-Power-Down Mode
Operation
• Latch-Up Performance Exceeds 250 mA Per
JESD 17
• ESD Performance Tested Per JESD 22
– 2000-V Human-Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
• Supports Digital Applications: Level
Translation, PCI Interface, USB Interface,
Memory Interleaving, and Bus Isolation
• Ideal for Low-Power Portable Equipment
DGG OR DGV PACKAGE
(TOP VIEW)
NC 1
1A1 2
1A2 3
1A3 4
1A4 5
1A5 6
1A6 7
GND 8
1A7 9
1A8 10
1A9 11
1A10 12
2A1 13
2A2 14
V_CC 15
2A3 16
GND 17
2A4 18
2A5 19
2A6 20
2A7 21
2A8 22
2A9 23
2A10 24
48 1OE
47 2OE
46 1B1
45 1B2
44 1B3
43 1B4
42 1B5
41 GND
40 1B6
39 1B7
38 1B8
37 1B9
36 1B10
35 2B1
34 2B2
33 2B3
32 GND
31 2B4
30 2B5
29 2B6
28 2B7
27 2B8
26 2B9
25 2B10
NC - No internal connection
DESCRIPTION/ORDERING INFORMATION
The SN74CB3T16210 is a high-speed TTL-compatible FET bus switch with low ON-state resistance (r_on),
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 V_CC. The SN74CB3T16210 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).
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2005, Texas Instruments Incorporated