TMS3450NL

The TMS3450NL is a kind of 4 digit radio clock LSI. TMS3450NL adopts the MOS P-channel low threshold, ion-implanted depletion load technology. The single 28 pin dual-in line plastic package provides the fucntions required for the radio clock, the alarm/table clock and the other timer applications.

There are some features of TMS3450NL as follows: (1)duplex LED display drive; (2)50/60 Hz operation; (3)12/24 hour display mode ; (4)AM/PM outputs (12 hour mode); (5)hour and min auto set control with one touch incrementer; (6)9 minute snooze; (7)power fail indication; (8)leading zero blanking; (9)presettable 59 min, or 1 hour 59 min, sleep timer; (10)24 hour alarm setting; (11)on-chip CR back-up oscillator; (12)900 Hz tone output; (13)28 pins 400 mil package.

The following is about the absolute maximum ratings of TMS3450NL: (1)voltage applied at any pin: +0.3 to -15.0 V; (2)operating temperature: -20 to +70; (3)storage temperature: -65 to +150.