CD54HCT258

Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
Input clamp current, I_IK (V_I < 0 or V_I > V_CC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . .  . . . ±20 mA
Output clamp current, I_OK (V_O < 0 or V_O > V_CC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . .±20 mA
Continuous output drain current per output, I_O (V_O = 0 to V_CC) . . . . . . . . . . . . . . . . . . . . . ±35 mA
Continuous output source or sink current per output, I_O (V_O = 0 to V_CC) . . . . . . . . . . . . . .  ±25 mA
Continuous current through V_CC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Package thermal impedance, _JA (see Note 2): E package . . . . . . . . . . . . . . . . . . . . . . . . . . 69°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 voltage ratings may be exceeded if the input and output current ratings are observed.
              2. The package thermal impedance is calculated in accordance with JESD 51-7.

CD54HCT258 are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (G) input is at a high logic level.

To ensure the high-impedance state during power up or power down, G should be tied to V_CC through a pullup resistor; the CD54HCT258 minimum value of the resistor is determined by the current-sinking capability of the driver