9 Feb
2002
9 Feb
'02
1:08 p.m.
On Friday, February 8, 2002, at 11:27 PM, R. D. Davis wrote:
- (unknown mfr.) 9206 SC11290CN
This is a DTMF Transceiver manufactured by International Semiconductor
Technologies. Pinout is:
Pin Number Pin Name
1 D3
2 D2
3 D1
4 D0
5 _DE
6 Vp
7 XEN
8 DIN
9 XOUT
10 XIN
11 ATB
12 Vn
13 DTMF OUT
14 LIN
15 DET
16 RESET
17 _LATCH
18 D4
19 D5
20 D6
21 D7
22 DV
Any thoughts on what this board might be?
Along with the Rockwell chip - board sounds very much like a modem... HTH
CRC