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24C16的详细信息

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ST24C16, ST25C16  
ST24W16, ST25W16  
2
16 Kbit Serial I C Bus EEPROM  
with User-Defined Block Write Protection  
1 MILLION ERASE/WRITE CYCLES, with  
40 YEARS DATA RETENTION  
SINGLE SUPPLY VOLTAGE:  
– 4.5V to 5.5V for ST24x16 versions  
– 2.5V to 5.5V for ST25x16 versions  
HARDWARE WRITE CONTROL VERSIONS:  
ST24W16 and ST25W16  
TWO WIRE SERIAL INTERFACE, FULLY I2C  
BUS COMPATIBLE  
8
8
1
1
PSDIP8 (B)  
0.25mm Frame  
SO8 (M)  
150mil Width  
BYTE and MULTIBYTE WRITE (up to 8  
BYTES) for the ST24C16  
PAGE WRITE (up to 16 BYTES)  
BYTE, RANDOM and SEQUENTIAL READ  
MODES  
SELF TIMED PROGRAMING CYCLE  
Figure 1. Logic Diagram  
AUTOMATIC ADDRESS INCREMENTING  
ENHANCED ESD/LATCH UP  
PERFORMANCES  
DESCRIPTION  
This specification covers a range of 16 Kbit I2C bus  
EEPROM products, the ST24/25C16 and the  
ST24/25W16. In the text, products are referred to  
as ST24/25x16 where "x" is: "C" for Standard ver-  
sion and "W" for hardware Write Control version.  
The ST24/25x16 are 16 Kbit electrically erasable  
programmable memories (EEPROM), organized  
as 8 blocks of 256 x8 bits. These are manufactured  
in STMicroelectronics’s Hi-Endurance Advanced  
CMOS technology which guarantees an endur-  
V
CC  
2
PB0-PB1  
PRE  
SDA  
ST24x16  
ST25x16  
SCL  
MODE/WC*  
Table 1. Signal Names  
PRE  
Write Protect Enable  
Protect Block Select  
Serial Data Address Input/Output  
Serial Clock  
PB0, PB1  
SDA  
V
SS  
AI00866B  
SCL  
Multybyte/Page Write Mode  
(C version)  
MODE  
WC  
VCC  
VSS  
Write Control (W version)  
Supply Voltage  
Ground  
Note: WC signal is only available for ST24/25W16 products.  
February 1999  
1/17  

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