3.
Block Diagram
V
CC
GND
WP
SCL
SDA
Start
Stop
Logic
Serial
Control
Logic
Enable
High Voltage
Pump & Timing
Device
Address
Comparator
Data Latches
COMP
Load
INC
Data Word
ADDR/Counter
Row Decoder
A
2
A
1
Read/Write
EEPROM
Array
Column
Decoder
Serial MUX
D
OUT
/ ACK
Logic
D
IN
D
OUT
4.
Pin Description
Serial Clock (SCL):
The SCL input is used to positive edge clock data into each EEPROM device and negative edge
clock data out of each device.
Serial Data (SDA):
The SDA pin is bidirectional for serial data transfer. This pin is open-drain driven and may be
wire-ORed with any number of other open-drain or open-collector devices.
Device/Page Addresses:
The AT24C16C does not use the device address pins, which limits the number of devices on
a single bus to one (see
Write Protect (WP):
AT24C16C has a Write Protect pin that provides hardware data protection. The Write Protect pin
allows normal Read/Write operations when connected to Ground (GND). When the Write Protect pin is connected to V
CC
,
the Write Protection feature is enabled and operates as shown in
Table 4-1.
Write Protect
Part of the Array Protected
WP Pin Status
At V
CC
At GND
Full Array
Normal Read/Write Operations
AT24C16C
Atmel AT24C16C [DATASHEET]
Atmel-8719B-SEEPROM-AT24C16C-Datasheet_042013
3
ATMEL [ ATMEL CORPORATION ]
