SN74CBT3251 Datasheet, PDF (3/12 Pages) Texas Instruments – 1-OF-8 FET MULTIPLEXER/DEMULTIPLEXER

SN74CBT3251
1ĆOFĆ8 FET MULTIPLEXER/DEMULTIPLEXER
SCDS019L − MAY 1995 − REVISED JANUARY 2004
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)^†
Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input voltage range, V_I (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Continuous channel current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Input clamp current, I_K (V_I/O < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA
Package thermal impedance, θ_JA (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, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −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.
recommended operating conditions (see Note 4)
MIN MAX UNIT
VCC Supply voltage
4 5.5 V
VIH High-level control input voltage
2
V
VIL Low-level control input voltage
0.8 V
TA Operating free-air temperature
−40 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
MIN TYP‡ MAX UNIT
VIK
II
ICC
∆ICC§
Ci
Cio(OFF)
Control inputs
Control inputs
A port
B port
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VI = 3 V or 0
VO = 3 V or 0,
II = −18 mA
VI = 5.5 V or GND
IO = 0,
One input at 3.4 V,
VI = VCC or GND
Other inputs at VCC or GND
OE = VCC
−1.2 V
±1 µA
3 µA
2.5 mA
3.5
pF
17.5
pF
4
VCC = 4 V,
TYP at VCC = 4 V
VI = 2.4 V,
II = 15 mA
14
20
ron¶
VCC = 4.5 V
VI = 0
II = 64 mA
II = 30 mA
5
7_Ω
5
7
VI = 2.4 V,
II = 15 mA
10
15
‡ _{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 of the voltages of the two (A or B) terminals.
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