SN54LVTH273

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 4.6 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Voltage range applied to any output in the power-off state, VO (see Note 1) . . . . −0.5 V to 7 V
Voltage range applied to any output in the high state, VO (see Note 1) .. −0.5 V to VCC + 0.5 V
Current into any output in the low state, IO: SN54LVTH273 .  . . . .. . . . . . . . . . .. . . . . . .. 96 mA
SN74LVTH273 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . .v128 mA
Current into any output in the high state, IO (see Note 2): SN54LVTH273. . . . . .. . . . . . . 48 mA
SN74LVTH273 . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . ... . .. . . . . . . . ..  .. . .. . . . . . . .. 64 mA
Input clamp current, IIK (VI < 0) . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . .. −50 mA
Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . .. .  . . .. . . . . .. . . . . . .. −50 mA
Package thermal impedance, JA (see Note 3): DB package  .  . .. . .  . ..  . . . .. . . . . . .. 70°C/W
                                                                          DW package. . . . . .  . . .. . . . .. . . . . . .  58°C/W
                                                                          NS package . . . . . . ... .. . . . . . . . .. . . . . .60C/W 
                                                                          package . .. . .  . . . .. . . ..  . . . . . .. . . . .83°C/W
Storage temperature range, Tstg . .. . . . . . . . . . . . . .. . .. .. . . . . . . . . . .. . . .. −65°C to 150°C


Description

These octal D-type flip-flops of LVTH273 are designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

The 'LVTH273 devices are positive-edge-triggered flip-flops with a direct-clear input. Information at the data (D) inputs meeting the setup-time requirements is transferred to the Q outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse. When the clock (CLK) input is at either the high or low level, the D-input signal of LVTH273 has no effect at the output.