SN75ALS172DWR vs SN75ALS172ADWR

Hello y.i,

The SN75ALS172 is not available. The SN75ALS172A is the preferred replacement for this part.

Best,
Michael

Hi Michael,

Thank you for your answer.
Our customer already uses SN75ALS172. but this datasheet is not available.
Can we replace perfectly ?
If SN75ALS172A has improved spec , please let me know.

Best Regards,
y.i

Y.I.

This question has come up before. I will search for answer tomorrow in archived email.

These are the specifications that are different on SN75ALS172DWR

Pinout for DIP package is the same, however pinout for DW package is NOT same. 

SN75ALS172
 
DC Parameters:
IIL = (When VI = 0.5V) -360µA Max 
 
IOS = (When VO = -7V to 12V) 500mA max.
 
ICC = (With no load and Outputs enabled) typical is 38 mA and max is 60mA.
ICC = (With no load and Outputs disabled) typical is 18mA and max is 40mA.
 
AC Switching Parameters:
td(OD) Differential-output delay time = (With a RLoad of 54 ohms) typical 45ns and max is 65ns.
tt(OD) Differential-output transition time = (With a RLoad of 110 ohms) typical 80ns and max is 120ns.
tPZH Output enable time to high level = (With a RLoad of 110 ohms) typical 80ns and max is 120ns.
tPZL Output enable time to low level = (With a RLoad of 110 ohms) typical 45ns and max is 80ns.
tPHZ Output disable time from high level = (With a RLoad of 110 ohms) typical 78ns and max is 115ns.
tPLZ Output disable time from low level = (With a RLoad of 110 ohms) typical 18ns and max is 30ns.