54F/74F544

Storage Temperature                                           -65°C to +150°C
Ambient Temperature under Bias                         -55°C to +125°C
Junction Temperature under Bias                         -55°C to +175°C
Plastic                                                                   -55°C to +150°C
VCC Pin Potential to
Ground Pin                                                                  -0.5V to +7.0V
Input Voltage (Note 2)                                                -0.5V to +7.0V
Input Current (Note 2)                                         -30 mA to +5.0 mA
Voltage Applied to Output
in HIGH State (with VCC e 0V)
Standard Output                                                          -0.5V to VCC
TRI-STATE Output                                                      -0.5V to +5.5V
Current Applied to Output
in LOW State (Max)                                      twice the rated IOL (mA)
ESD Last Passing Voltage (Min)                                               4000V
Note 1: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs

The 54F/74F544 octal transceiver contains two sets of D-type latches for temporary storage of data flowing in either direction. Separate Latch Enable and Output Enable inputs are provided for each register to permit independent control of inputting and outputting in either direction of data flow. The A outputs of 54F/74F544 are guaranteed to sink 24 mA (20 mA Mil) while the B outputs are rated for 64 mA (48 mA Mil). The 'F544 inverts data in both directions.