24aa164 Microchip Technology Inc., 24aa164 Datasheet - Page 8

• Manufacturer Part Number: 24aa164
• Description: 16k 1.8v Cascadable I2ctm Serial Eeprom
• Manufacturer: Microchip Technology Inc.

24AA164
8.0
8.1
This is a Bi-directional pin used to transfer addresses
and data into and data out of the device. It is an open
drain terminal, therefore the SDA bus requires a pullup
resistor to V
400 kHz).
For normal data transfer SDA is allowed to change only
during SCL low.
reserved for indicating the START and STOP condi-
tions.
8.2
This input is used to synchronize the data transfer from
and to the device.
DS21100F-page 8
PIN DESCRIPTIONS
SDA Serial Address/Data Input/Output
SCL Serial Clock
CC
(typical 10K
Changes during SCL high are
for 100 kHz, 2 K
for
8.3
This pin must be connected to either V
If tied to V
(read/write the entire memory 000-7FF).
If tied to V
entire memory will be write-protected. Read opera-
tions are not affected.
This feature allows the user to use the 24AA164 as a
serial ROM when WP is enabled (tied to V
8.4
These pins are used to configure the proper chip
address in multiple-chip applications (more than one
24AA164 on the same bus). The levels on these pins
are compared to the corresponding bits in the slave
address. The chip is selected if the compare is true.
Up to eight 24AA164s may be connected to the same
bus. These pins must be connected to either V
V
CC
Note:
.
WP
A0, A1, A2
CC
The level on A1 is compared to the inverse
of the slave address.
SS
, normal memory operation is enabled
, WRITE operations are inhibited. The
1999 Microchip Technology Inc.
SS
or V
CC
).
CC
.
SS
or