參數(shù)資料
型號(hào): AT24C164-W1.8-11
廠商: ATMEL CORP
元件分類(lèi): DRAM
英文描述: Two-Wire Serial EEPROM 16K (2048 x 8)
中文描述: 2K X 8 I2C/2-WIRE SERIAL EEPROM, UUC
封裝: DIE
文件頁(yè)數(shù): 6/17頁(yè)
文件大小: 440K
代理商: AT24C164-W1.8-11
6
AT24C164
0105J–SEEPR–12/06
Device Operation
CLOCK and DATA TRANSITIONS:
The SDA pin is normally pulled high with an exter-
nal device. Data on the SDA pin may change only during SCL low time periods (refer to
Data Validity timing diagram). Data changes during SCL high periods will indicate a start
or stop condition as defined below.
START CONDITION:
A high-to-low transition of SDA with SCL high is a start condition
which must precede any other command (see Figure 5 on page 8).
STOP CONDITION:
A low-to-high transition of SDA with SCL high is a stop condition.
After a read sequence, the stop command will place the EEPROM in a standby power
mode (see Figure 5 on page 8).
ACKNOWLEDGE:
All addresses and data words are serially transmitted to and from
the EEPROM in 8-bit words. The EEPROM sends a zero to acknowledge that it has
received each word. This happens during the ninth clock cycle.
STANDBY MODE:
The AT24C164 features a low power standby mode which is
enabled: a) upon power-up and b) after the receipt of the STOP bit and the completion
of any internal operations.
MEMORY RESET:
After an interruption in protocol, power loss or system reset, the
AT24C164 can be reset by following these steps:
(a) Clock up to 9 cycles, (b) look for SDA high in each cycle while SCL is high and then
(c) create a start condition as SDA is high.
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