73M2901/5V
Advanced Single
Chip Modem
15
32 PIN PLCC PIN-OUT
PIN PIN NAME PIN PIN NAME
1 ASRCH 17 TXAP
2 RING 18 VREF
3 RELAY 19 VBG
4 RI 20 RXA
5 VND 21 VNA
6 VPD 22 VND
7 DCD 23 OSCOUT
8 DSR 24 OSCIN
9 CTS 25 VPD
10 RTS 26 VND
11 USR11 27 TXD
12 USR10 28 TXCLK
13 RESET 29 VPD
14 HBDEN 30 RXD
15 VPA 31 RXCLK
16 TXAN 32 DTR
44 PIN TQFP PIN-OUT
PIN PIN NAME PIN PIN NAME PIN PIN NAME PIN PIN NAME
1 N/C 12 VPD 23 N/C 34 N/C
2 VPD 13 N/C 24 VND 35 RXD
3 DCD 14 N/C 25 OSCOUT 36 RXCLK
4 DSR 15 HBDEN 26 OSCIN 37 DTR
5 CTS 16 VPA 27 VPD 38 ASRCH
6 RTS 17 TXAN 28 VND 39 RING
7 USR11 18 TXAP 29 N/C 40 RELAY
8 USR10 19 VREF 30 TXD 41 N/C
9 RESET 20 VBG 31 TXCLK 42 N/C
10 N/C 21 RXA 32 N/C 43 RI
11 VND 22 VNA 33 VPD 44 VND