SN54ABT125

Pinout




Specifications

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
Voltage range applied to any output in the high or power-off state,V_O . . .0.5 V to 5.5 V
Current into any output in the low state, I_O : SN54ABT125. . . .  . . . . . 96 mA
                                                                        SN74ABT125 . .. . . . . . .128 mA
Input clamp current, I_IK (V_I < 0)  . . . . . . . . .. . . . . . . . . . . . . . . . . .. . 18 mA
Output clamp current, I_OK (V_O < 0)  . .. . . . . . . . . . . . . . . . . . . .. . . . . 50 mA
Package thermal impedance, JA (see Note 2): D package . . . . . . . . 86°C/W
                                                     (see Note 2): DB package . . . . . . . 96°C/W
                                                     (see Note 2): N package . . . . ... . . 80°C/W
                                                     (see Note 2): NS package . . . . . . . 76°C/W
                                                     (see Note 2): PW package . . . . . . 113°C/W
                                                     (see Note 3): RGY package . . . .. . . 47°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . .  . . . . 65 to 150
+
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.


Description

The SN54ABT125 quadruple bus buffer gates feature independent line drivers with 3-state outputs. Each output of SN54ABT125  is disabled when the associated output-enable (OE ) input is high.

These SN54ABT125 devices are fully specified for hot-insertion applications using I  and power-up 3-state. The I  circuitry off off disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,which prevents driver conflict.To ensure the high-impedance state during power up or power down, OE should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.