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The 'AHCT373 devices are octal-transparent D-type latches. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is low, the Q outputs are latched at the logic levels of the D inputs.
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.
SN74AHCT373 Maximum Ratings
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . 0.5 V to 7 V Output voltage range, VO (see Note 1) .. . . . . . . . 0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . ±25 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . ±75 mA Package thermal impedance, JA (see Note 2): DB package. .. .70°C/W DGV package. . 92°C/W DW package . . 58°C/W N package. . . . 69°C/W NS package . . 60°C/W PW package . . 83°C/W Storage temperature range, Tstg . . . . . . . . .. . . . . . 65°C to 150°C
SN74AHCT373 Typical Application
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