ST24E16, ST25E16
Figure 2A. DIP Pin Connections
Figure 2B. SO Pin Connections
ST24E16
ST25E16
ST24E16
ST25E16
E0
E1
E2
1
2
3
4
8
V
E0
E1
E2
1
2
3
4
8
V
CC
WC
CC
7
WC
7
6
5
SCL
SDA
6
5
SCL
SDA
V
V
SS
SS
AI01103B
AI01104C
Table 2. Absolute Maximum Ratings (1)
Symbol
TA
Parameter
Value
Unit
°C
Ambient Operating Temperature
Storage Temperature
–40 to 125
–65 to 150
TSTG
°C
TLEAD
Lead Temperature, Soldering
(SO8)
(PSDIP8)
40 sec
10 sec
215
260
°C
VIO
Input or Output Voltages
Supply Voltage
–0.6 to 6.5
–0.3 to 6.5
4000
V
V
V
V
VCC
Electrostatic Discharge Voltage (Human Body model) (2)
Electrostatic Discharge Voltage (Machine model) (3)
VESD
500
Notes: 1. Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum Ratings"
may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other
conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum
Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and
other relevant quality documents.
2. 100pF through 1500Ω; MIL-STD-883C, 3015.7
3. 200pF through 0Ω; EIAJ IC-121 (condition C)
DESCRIPTION (cont’d)
the I2C bus definition. The ST24/25E16 behave as
slave devices in the I2C protocol with all memory
operations synchronized by the serial clock. Read
and write operations are initiated by a START
condition generated by the bus master. The START
condition is followed by a stream of 4 bits (identifi-
cation code 1010), 3 bit Chip Enable input to form
a 7 bit Device Select, plus one read/write bit and
terminated by an acknowledge bit.
Both Plastic Dual-in-Line and Plastic Small Outline
packages are available.
Each memory is compatible with the I2C extended
addressing standard, two wire serial interface
which uses a bi-directional data bus and serial
clock. The ST24/25E16 carry a built-in 4 bit, unique
device identification code (1010) corresponding to
2/16
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