CD-VC50-02
*PD4714C
FormatMeaning
201
CC MOS
2180
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
4061
4160
-Pin Functions(D6106-11A)
Pin No.Pin NameI/OFunction and Operation
1RESERVEDThese pins should be left unconnected
2EPRCSNOActive-low EPROM select output
3ACKNI/OActive-low host interrupt flag
4HI/LOIConnect to 10K pull-up
5HRDNIActive-low host read control line
6HWRNIActive-low host write control line
7�14HD7-0I/OBidirectional data bus lines for the host interface 7-0
15GNDGND
16CLKOClock output
17XOUTOCrystal oscillator output
18XINICrystal oscillator input
19VCCI+5V supply voltage line
20SCLKO2106kHz clock output to the PCM codec
21RESETIActive-high reset input with Schmitt trigger interface
22PDNIConnect to 10K pull-up
23FSYNCOActive-high, 8228Hz frame synchronization pulse output to the
PCM codec
24RESERVEDThese pins should be left unconnected
25DXOOOutput for ?-Law PCM encoded data from the PCM codec
26RESERVEDThese pins should be left unconnected
27DROIInput for ?-Law PCM encoded data from the PCM codec
28�30RESERVEDThese pins should be left unconnected
31GNDGND
32VCCI+5V supply voltage line
33�35RESERVEDThese pins should be left unconnected
36SRMWRNOActive-low write strobe output to the SRAM
37SRMRDNOActive-low EPROM/SRAM read control output
38PREADNOThis pin should be left unconnected
39�52D0-13I/OBidirectional data bus lines for the external memory components 0-13
53VCCI+5V supply voltage line
54GNDGND
55,56RESERVEDGND
57,58D14,15I/OBidirectional data bus lines for the external memory components 14,15
59�72A0-13OAddress lines for the external memory components 0-13
73VCCI+5V supply voltage line
74GNDGND
75�77A14-16OAddress lines for the external memory components 14-16
78SRMCSNOActive-low SRAM select output
79LISTNOActive-low listening state indication line
80VADOActive-low Voice Activity indication line
13 |
ACEC
