ISD5216 Datasheet, PDF (19/75 Pages) Winbond – 8 to 16 minutes voice record/playback device with integrated codec

ISD5216
7.3.7. I²C Slave Address
The ISD5216 has a 7 bit slave address of <100 00xy> where x and y are equal to the state,
respectively, of the external address pins A1 and A0. Because all data bytes are required to be 8 bits,
the LSB of the address byte is the Read/Write selection bit that tells the slave whether to transmit or
receive data. Therefore, there are eight possible slave addresses for the ISD5216. To use more than
four ISD5216 devices in an application requires some external switching of the I²C link.
A1 A0
00
01
10
11
00
01
10
11
Slave
Address
<100 00 00>
<100 00 01>
<100 00 10>
<100 00 11>
<100 00 00>
<100 00 01>
<100 00 10>
<100 00 11>
R/W\ Bit HEX Value
0
80
0
82
0
84
0
86
1
81
1
83
1
85
1
87
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Publication Release Date: Jan. 31, 2006
Revision B.4