ST24 STMICROELECTRONICS [STMicroelectronics], ST24 Datasheet - Page 11

• Manufacturer Part Number: ST24
• Description: SERIAL 1K 128 x 8 EEPROM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 9. Write Modes Sequence with Write Control = 1 (ST24/25W01)
Sequential Read. This mode can be initiated with
either a Current Address Read or a Random Ad-
dress Read. However, in this case the master
DOES acknowledge the data byte output and the
memory continues to output the next byte in se-
quence. To terminate the stream of bytes, the
master must NOT acknowledge the last byte out-
put, but MUST generate a STOP condition. The
output data is from consecutive byte addresses,
with the internal byte address counter automat-
WC
BYTE WRITE
WC
PAGE WRITE
WC (cont'd)
PAGE WRITE
(cont'd)
NO ACK
DEV SEL
DEV SEL
DATA IN N
R/W
R/W
ACK
ACK
NO ACK
BYTE ADDR
BYTE ADDR
ically incremented after each byte output. After a
count of the last memory address, the address
counter will ’roll- over’ and the memory will continue
to output data.
Acknowledge in Read Mode. In all read modes
the ST24/25x01 wait for an acknowledge during the
9th bit time. If the master does not pull the SDA line
low during this time, the ST24/25x01 terminate the
data transfer and switches to a standby state.
ST24/25C01, ST24C01R, ST24/25W01
ACK
ACK
DATA IN 1
DATA IN
NO ACK
NO ACK
DATA IN 2
AI01161B
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