name:         73M223
function:     Modem
package:      DIP/SO,16
manufacturer: TDK
added-by:     Neil Harrison
comment:      Low power 1200bps FSK modem

     +--()--+
 VDD | 1  16| TXA
 RXA | 2  15| CLK
 CAP | 3  14| OSC2
 RXF | 4  13| OSC1
 FIL | 5  12| TXD
TEST | 6  11| RXD
 /TX | 7  10| /SYN
 VSS | 8   9| SYNC
     +------+

This information was added by a third party and may be incorrect.

This pinout came from the Chipdir:
http://www.chipdir.org/