SN74AHCT373

Application

Audio                             www.ti.com/audio
Automotive                    www.ti.com/automotive
Broadband                     www.ti.com/broadband
Digital Control               www.ti.com/digitalcontrol
Military                          www.ti.com/military
Optical Networking       www.ti.com/opticalnetwork
Security                        www.ti.com/security
Telephony                    www.ti.com/telephony
Video & Imaging          www.ti.com/video
Wireless                      www.ti.com/wireless


Pinout




Specifications

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


Description

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 of  'AHCT373  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.