SN74CB3T16211_08 Datasheet, PDF (1/14 Pages) Texas Instruments – 24-BIT FET SWITCH 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V-TOLERANT LEVEL SHIFTER

SN74CB3T16211
24ĆBIT FET BUS SWITCH
2.5ĆV/3.3ĆV LOWĆVOLTAGE BUS SWITCH WITH 5ĆVĆTOLERANT LEVEL SHIFTER
SCDS147B − OCTOBER 2003 − REVISED JANUARY 2005
D Member of the Texas Instruments
Widebus Family
D Output Voltage Translation Tracks V_CC
D 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
D 5-V-Tolerant I/Os, With Device Powered Up
or Powered Down
D Bidirectional Data Flow, With Near-Zero
Propagation Delay
D Low ON-State Resistance (r_on)
Characteristics (r_on = 5 Ω Typical)
D Low Input/Output Capacitance Minimizes
Loading (C_io(OFF) = 5 pF Typical)
D Data and Control Inputs Provide
Undershoot Clamp Diodes
D Low Power Consumption
(I_CC = 70 µA Max)
D V_CC Operating Range From 2.3 V to 3.6 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 250 mA Per
JESD 17
D ESD Performance Tested Per JESD 22
− 2000-V Human-Body Model
(A114-B, Class II)
− 1000-V Charged-Device Model (C101)
D Supports Digital Applications: Level
Translation, PCI Interface, Bus Isolation
D Ideal for Low-Power Portable Equipment
DGG, DGV, OR DL 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
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
NC − No internal connection
description/ordering information
The SN74CB3T16211 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 SN74CB3T16211 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 Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2005, Texas Instruments Incorporated
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