SN74CBT3253
DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER
SCDS018O − MAY 1995 − REVISED JANUARY 2004
D TTL-Compatible Input Levels
15
3
14
4
13
5
12
6
11
7
10
8
9
VCC
2OE
S0
2B4
2B3
2B2
2B1
2A
S1
1B4
1B3
1B2
1B1
1A
VCC
16
2
1
16
15 2OE
14 S0
2
3
13 2B4
12 2B3
4
5
11 2B2
10 2B1
6
7
8
9
2A
1
GND
1OE
S1
1B4
1B3
1B2
1B1
1A
GND
1OE
RGY PACKAGE
(TOP VIEW)
D, DB, DBQ, OR PW PACKAGE
(TOP VIEW)
description/ordering information
The SN74CBT3253 is a dual 1-of-4 high-speed TTL-compatible FET multiplexer/demultiplexer. The low
on-state resistance of the switch allows connections to be made with minimal propagation delay.
1OE, 2OE, S0, and S1 select the appropriate B output for the A-input data.
ORDERING INFORMATION
QFN − RGY
SN74CBT3253RGYR
Tube
SN74CBT3253D
Tape and reel
SN74CBT3253DR
SSOP − DB
Tape and reel
SN74CBT3253DBR
CU253
SSOP (QSOP) − DBQ
Tape and reel
SN74CBT3253DBQR
CU253
Tube
SN74CBT3253PW
Tape and reel
SN74CBT3253PWR
TSSOP − PW
†
TOP-SIDE
MARKING
Tape and reel
SOIC − D
−40°C
40 C to 85°C
85 C
ORDERABLE
PART NUMBER
PACKAGE†
TA
CU253
CBT3253
CU253
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
FUNCTION TABLE
INPUTS
FUNCTION
1OE
2OE
S1
S0
X
H
X
X
H
X
X
X
Disconnect 1A and 2A
L
L
L
L
1A to 1B1 and 2A to 2B1
L
L
L
H
1A to 1B2 and 2A to 2B2
L
L
H
L
1A to 1B3 and 2A to 2B3
L
L
H
H
1A to 1B4 and 2A to 2B4
Disconnect 1A and 2A
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.
Copyright © 2004, Texas Instruments Incorporated
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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SN74CBT3253
DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER
SCDS018O − MAY 1995 − REVISED JANUARY 2004
logic diagram (positive logic)
1A
6
7
1B1
5
1B2
4
1B3
3
1B4
2A
10
9
2B1
11
2B2
12
2B3
13
2B4
14
S0
S1
2
1
1OE
15
2OE
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Continuous channel current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Input clamp current, IK (VI/O < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA
Package thermal impedance, θJA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W
(see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82°C/W
(see Note 2): DBQ package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90°C/W
(see Note 2): PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108°C/W
(see Note 3): RGY package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
3. The package thermal impedance is calculated in accordance with JESD 51-5.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN74CBT3253
DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER
SCDS018O − MAY 1995 − REVISED JANUARY 2004
recommended operating conditions (see Note 4)
MIN
MAX
5.5
VCC
Supply voltage
4
VIH
High-level control input voltage
2
VIL
Low-level control input voltage
TA
Operating free-air temperature
−40
UNIT
V
V
0.8
V
85
°C
NOTE 4: All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VIK
VCC = 4.5 V,
II = −18 mA
II
VCC = 5 V,
VI = 5.5 V or GND
ICC
MIN
VCC = 5.5 V,
IO = 0,
VI = VCC or GND
ΔICC‡
Control inputs
VCC = 5.5 V,
One input at 3.4 V,
Other inputs at VCC or GND
Ci
Control inputs
VI = 3 V or 0
B port
ron§
MAX
UNIT
−1.2
V
±1
μA
3
μA
2.5
mA
3.5
A port
Cio(OFF)
TYP†
pF
10
VO = 3 V or 0
0,
OE = VCC
VI = 0
VCC = 4.5 V
VI = 2.4 V,
pF
4
II = 64 mA
5
II = 30 mA
5
7
7
II = 15 mA
10
15
Ω
†
All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C.
This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND.
§ Measured by the voltage drop between the A and the B terminals at the indicated current through the switch. On-state resistance is determined
by the lower voltage of the two (A or B) terminals.
‡
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
VCC = 5 V
± 0.5 V
MIN
MIN
TO
(OUTPUT)
tpd¶
A or B
B or A
0.35
0.25
ns
tpd
S
A or B
6.6
1.6
6.2
ns
7.1
1.3
6.3
7.3
1.4
6.4
7.9
1.1
7.4
7.3
2.3
7
S
ten
OE
A or B
S
tdis
¶
VCC = 4 V
FROM
(INPUT)
PARAMETER
MAX
UNIT
MAX
A or B
OE
ns
ns
The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance, when
driven by an ideal voltage source (zero output impedance).
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SN74CBT3253
DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER
SCDS018O − MAY 1995 − REVISED JANUARY 2004
PARAMETER MEASUREMENT INFORMATION
500 Ω
From Output
Under Test
S1
7V
Open
TEST
tpd
tPLZ/tPZL
tPHZ/tPZH
GND
CL = 50 pF
(see Note A)
S1
Open
7V
Open
500 Ω
3V
Output
Control
(low-level
enabling)
LOAD CIRCUIT
1.5 V
0V
tPZL
3V
1.5 V
Input
1.5 V
0V
tPLH
VOH
Output
1.5 V
Output
Waveform 1
S1 at 7 V
(see Note B)
tPLZ
3.5 V
1.5 V
tPZH
tPHL
1.5 V
VOL
Output
Waveform 2
S1 at Open
(see Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
1.5 V
VOL + 0.3 V
VOL
tPHZ
1.5 V
VOH
VOH − 0.3 V
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPHL and tPLH are the same as tpd.
H. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
18-Aug-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
SN74CBT3253D
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
CBT3253
Samples
SN74CBT3253DBQR
ACTIVE
SSOP
DBQ
16
2500
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
CU253
Samples
SN74CBT3253DBR
ACTIVE
SSOP
DB
16
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
CU253
Samples
SN74CBT3253DR
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
CBT3253
Samples
SN74CBT3253DRE4
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
CBT3253
Samples
SN74CBT3253PW
ACTIVE
TSSOP
PW
16
90
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
CU253
Samples
SN74CBT3253PWR
ACTIVE
TSSOP
PW
16
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
CU253
Samples
SN74CBT3253RGYR
ACTIVE
VQFN
RGY
16
3000
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
CU253
Samples
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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