BYTE and MULTIBYTE WRITE (up to 4 BYTES)
PAGE WRITE (up to 8 BYTES)
BYTE, RANDOM and SEQUENTIAL READ MODES
SELF TIMED PROGRAMMING CYCLE
AUTOMATIC ADDRESS INCREMENTING
2. MIL-STD-883C, 3015.7 (100pF, 1500 Ω). 3. EIAJ IC-121 (Condition C) (200pF, 0 Ω).
DESCRIPTION (cont’d)
VCC
2 E1-E2
PRE SCL MODE/WC*
ST24x04 ST25x04
SDA
VSS
AI00851E
Note: WC signal is only available for ST24/25W04 products.
February 1999
1/16
ST24/25C04, ST24/25W04
SINGLE SUPPLY VOLTAGE:
– 3V to 5.5V for S Nhomakorabea24x04 versions
– 2.5V to 5.5V for ST25x04 versions
HARDWARE WRITE CONTROL VERSIONS: ST24W04 and ST25W04
PROGRAMMABLE WRITE PROTECTION TWO WIRE SERIAL INTERFACE, FULLY I2C BUS COMPATIBLE
–65 to 150
°C
TLEAD Lead Temperature, Soldering
(SO8 package)
40 sec
(PSDIP8 package) 10 sec
215 260
°C
VIO
Input or Output Voltages
–0.6 to 6.5
V
VCC VESD
Supply Voltage Electrostatic Discharge Voltage (Human Body model) (2) Electrostatic Discharge Voltage (Machine model) (3)
ST24C04, ST25C04 ST24W04, ST25W04
4 Kbit Serial I2C Bus EEPROM with User-Defined Block Write Protection
1 MILLION ERASE/WRITE CYCLES with 40 YEARS DATA RETENTION
ENHANCED ESD/LATCH UP PERFORMANCES
8
1
PSDIP8 (B) 0.25mm Frame
8
1
SO8 (M) 150mil Width
Figure 1. Logic Diagram
DESCRIPTION
This specification covers a range of 4 Kbits I2C bus EEPROM products, the ST24/25C04 and the ST24/25W04. In the text, products are referred to as ST24/25x04, where "x" is: "C" for Standard version and "W" for hardware Write Control version.
1
8
2
7
3
6
4
5
AI01107E
VCC MODE/WC SCL SDA
Table 2. Absolute Maximum Ratings (1)
Symbol
Parameter
Value
Unit
TA
Ambient Operating Temperature
–40 to 125
°C
TSTG Storage Temperature
–0.3 to 6.5
V
4000
V
500
V
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.
Figure 2A. DIP Pin Connections
ST24x04 ST25x04
PRE 1 E1 2
8 VCC 7 MODE/WC
E2 3
6 SCL
VSS 4
5 SDA
AI00852E
Figure 2B. SO Pin Connections
PRE E1 E2
VSS
ST24x04 ST25x04
Table 1. Signal Names
PRE E1-E2 SDA SCL
MODE
WC VCC VSS
Write Protect Enable Chip Enable Inputs Serial Data Address Input/Output Serial Clock Multibyte/Page Write Mode (C version) Write Control (W version) Supply Voltage Ground