SN74CB3Q3257 Datasheet, PDF (1/13 Pages) Texas Instruments – 4 BIT 1 OF 2 FET MULTIPLEXER/ DEMULTIPLEXER

SN74CB3Q3257
4ĆBIT 1ĆOFĆ2 FET MULTIPLEXER/DEMULTIPLEXER
2.5ĆV/3.3ĆV LOWĆVOLTAGE, HIGHĆBANDWIDTH BUS SWITCH
SCDS135A – SEPTEMBER 2003 − REVISED NOVEMBER 2003
D High-Bandwidth Data Path
(Up to 500 MHz^†)
D 5-V Tolerant I/Os with Device Powered-Up
or Powered-Down
D Low and Flat ON-State Resistance (r_on)
Characteristics Over Operating Range
(r_on = 4 Ω Typical)
D Rail-to-Rail Switching on Data I/O Ports
− 0- to 5-V Switching With 3.3-V V_CC
− 0- to 3.3-V Switching With 2.5-V V_CC
D Bidirectional Data Flow, With Near-Zero
Propagation Delay
D Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
(C_io(OFF) = 3.5 pF Typical)
D Fast Switching Frequency (f_OE = 20 MHz
Max)
† _{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.
D Data and Control Inputs Provide
Undershoot Clamp Diodes
D Low Power Consumption
(I_CC = 0.7 mA Typical)
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 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: USB Interface, Differential
Signal Interface, Bus Isolation,
Low-Distortion Signal Gating
DBQ, DGV, OR PW PACKAGE
(TOP VIEW)
S1
1B1 2
1B2 3
1A 4
2B1 5
2B2 6
2A 7
GND 8
16 V_CC
15 OE
14 4B1
13 4B2
12 4A
11 3B1
10 3B2
9 3A
RGY PACKAGE
(TOP VIEW)
1
1B1 2
1B2 3
1A 4
2B1 5
2B2 6
2A 7
8
16
15 OE
14 4B1
13 4B2
12 4A
11 3B1
10 3B2
9
description/ordering information
ORDERING INFORMATION
TA
PACKAGE‡
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
QFN − RGY
Tape and reel SN74CB3Q3257RGYR BU257
SSOP (QSOP) − DBQ Tape and reel SN74CB3Q3257DBQR
−40°C to 85°C
TSSOP − PW
Tape and reel SN74CB3Q3257PWR
BU257
BU257
TVSOP − DGV
Tape and reel SN74CB3Q3257DGVR BU257
‡ _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design}
guidelines are available at www.ti.com/sc/package.
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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