SN74CBT3125
QUADRUPLE FET BUS SWITCH
SCDS021E – MAY 1995 – REVISED MAY 1998
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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 127°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DB package 158°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DBQ package 139°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DGV package 182°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 170°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 af fect 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.
recommended operating conditions (see Note 3)
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
TAOperating free-air temperature –40 85 °C
NOTE 3: 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 VCC = 4 V, II = –18 mA –1.2 V
IIVCC = 5.5 V, VI = 5.5 V or GND ±1µA
ICC VCC = 5.5 V, IO = 0, VI = VCC or GND 3 µA
∆ICC§Control inputs VCC = 5.5 V, One input at 3.4 V, Other inputs at VCC or GND 2.5 mA
CiControl inputs VI = 3 V or 0 3 pF
Cio(OFF) VO = 3 V or 0, OE = VCC 4pF
VCC = 4 V,
TYP at VCC = 4 V VI = 2.4 V, II = 15 mA 16 22
r
II = 64 mA 5 7 Ω
VCC = 4.5 V
I =
II = 30 mA 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 voltage of the two (A or B) terminals.