14
DN-S3500
ADSP-BF531 (IC401)
ADSP-BF531 Terminal Function
Pin
No.
Pin Name Symbol I/O DET Ext Ini Res Function
1 GND GND - - - - - GND
2 GND GND - - - - - GND
3 GND GND - - - - - GND
4 VROUT2 O - - - - External FET drive output 2
5 VROUT1 VROUT1 O - - - - External FET drive output 1
6 VDDEXT VDDEXT I - - - - I/O power (+3.3V)
7 GND GND - - - - - GND
8 GND GND - - - - - GND
9 GND GND - - - - - GND
10 CLKIN CLKIN I - - - - Clock input 25MHz oscillation
11 XTAL XTAL O - - - - Cristal oscillator terminal
12 VDDEXT VDDEXT I - - - - I/O power (+3.3V)
13 _RESET _RESET I - - - - Reset signal input
14 NMI NMI I - - - - Mask disable interrupt
15 GND GND - - - - - GND
16 RTXO O - - - - RTC cristal oscillator output
17 RTXI I - - L L RTC cristal oscillator input
18 VDDRTC VDDRTC I - - - - Real time clock power (+3.3V)
19 GND GND - - - - - GND
20 VDDEXT VDDEXT I - - - - I/O power (+3.3V)
21 PPI_CLK I - - L L PPI clock
22 PPI0 O - - L - PPI data 0
23 PPI1 O - - L - PPI data 1
24 PPI2 O - - L - PPI data 2
25 VDDINT VDDINT I - - - - Internal power (+1.2V)
26 PPI3 O - - L - PPI data 3
27 PF15 O - - L - Programmable flag pin 15
28 PF14 O - - L - Programmable flag pin 14
29 PF13 O - - L - Programmable flag pin 13
30 GND GND - - - - - GND
31 VDDEXT VDDEXT I - - - - I/O power (+3.3V)
32 PF12 I - Pu H H Not used
33 PF11 I - - L - Not used
34 PF10 O - Pu H H Not used
35 PF9 I - Pu H H Not used
36 PF8 DSPF5 O - - L - (RESERVE)
37 PF7 O - - L - Not used
38 PF6 DTIMES O - - L - Playback clock output for SAMPLER
39 GND GND - - - - - GND
40 GND GND - - - - - GND
PIN 1
133
1
132
45
44
88
89
176
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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