SN54HCT373

Features:

􀀀 Operating Voltage Range of 4.5 V to 5.5 V
􀀀 High-Current 3-State True Outputs Can Drive Up To 15 LSTTL Loads
􀀀 Low Power Consumption, 80-A Max ICC
􀀀 Typical tpd = 21 ns
􀀀 ±6-mA Output Drive at 5 V
􀀀 Low Input Current of 1 A Max
􀀀 Inputs Are TTL-Voltage Compatible
􀀀 Eight High-Current Latches in a Single Package
􀀀 Full Parallel Access for Loading


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, 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 current, I_O (V_O = 0 to V_CC) . . . . . . . . . . . . . . . . . ±35 mA
Continuous current through V_CC or GND . . . . . . . . . . . . . . . . . . . . . . ±70 mA
Package thermal impedance, _JA (see Note 2): DB package .  . . . . . 70°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, T_stg   . . . . . . . . . . . . . . . . . . . 65°C to 150°C


Description

These 8-bit latches feature 3-state outputs of HCT373 designed specifically for driving highly capacitive or relatively low-mpedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight latches of the 'HCT373 devices are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is taken low,the Q outputs are latched at the levels that were
set up at the D inputs.