R1EX24016ASAS0A Datasheet, PDF (8/24 Pages) Renesas Technology Corp – Two-wire serial interface 16k EEPROM (2-kword × 8-bit)

R1EX24016AxxS0A
Device Address (A0, A1, A2)
One device can be wired for one common data bus line as maximum. All device address are used for
memory address, corresponding device address pins must not be fixed.
Pin Connections for A0 to A2
Pin connection
Max connect
Memory size number
A2
A1
A0
16k bit
1
×*¹
×*¹
×*¹
Note: 1. Floating state can be possible.
Note
Use A0,A1,A2 for memory address a8,a9
and a10
Write Protect (WP)
When the Write Protect pin (WP) is high, the write protection feature is enabled and operates as shown in
the following table.
Also, acknowledgment "0" is outputted after inputting device address and memory address. After
inputting write data, acknowledgment "1""(NO ACK) is outputted.
When the WP is low, write operation for all memory arrays are allowed. The read operation is always
activated irrespective of the WP pin status.
Write Protect Area
WP pin status
V
IH
V
IL
Write protect area
16k bit
Full (16k bit)
Normal read/write operation
REJ03C0350-0100 Rev.1.00 Apr. 21, 2008
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