SN74CBT3125C
QUADRUPLE FET BUS SWITCH
5V BUS SWITCH WITH 2V UNDERSHOOT PROTECTION
SCDS122A JULY 2003 REVISED OCTOBER 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
simplified schematic, each FET switch (SW)
A
EN
B
EN is the internal enable signal applied to the switch.
Undershoot
Protection Circuit
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control input voltage range, VIN (see Notes 1 and 2)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switch I/O voltage range, VI/O (see Notes 1, 2, and 3)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control input clamp current, IIK (VIN < 0)
50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O port clamp current, II/OK (VI/O < 0)
50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-state switch current, II/O (see Note 4)
±128 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND terminals
±100 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 5): D package
86
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 5): DB package
96
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 5): DBQ package
90
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 5): DGV package
127
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 5): PW package
113
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 6): RGY package
47
°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. All voltages are with respect to ground unless otherwise specified.
2. The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
3. VI and VO are used to denote specific conditions for VI/O.
4. II and IO are used to denote specific conditions for II/O.
5. The package thermal impedance is calculated in accordance with JESD 51-7.
6. The package thermal impedance is calculated in accordance with JESD 51-5.
recommended operating conditions (see Note 7)
MIN
MAX
UNIT
VCC
Supply voltage
4
5.5
V
VIH
High-level control input voltage
2
5.5
V
VIL
Low-level control input voltage
0
0.8
V
VI/O
Data input/output voltage
0
5.5
V
TA
Operating free-air temperature
40
85
°C
NOTE 7: 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.