R1EX24016ASAS0I_12 Datasheet, PDF (7/19 Pages) Renesas Technology Corp – Two-wire serial interface 16k EEPROM

R1EX24016ASAS0I/R1EX24016ATAS0I
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
Memory size
16k bit
Max connect
number
1
Pin connection
A2
A1
A0
*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.
The WP pin is internally pulled-down to VSS. Write operations for all memory array are allowed if unconnected.
Write Protect Area
WP pin status
V_IH
V_IL
Write protect area
16k bit
Full (16k bit)
Normal read/write operation
R10DS0107EJ0100 Rev.1.00
Feb. 23, 2012
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