參數(shù)資料
型號(hào)： 24LC32AX
廠商： Microchip Technology Inc.
英文描述： 32KIC Serial EEPROM
中文描述： 32KIC串行EEPROM
文件頁(yè)數(shù)： 14/16頁(yè)
文件大?。?/td> 474K
代理商： 24LC32AX
24LC32A MODULE
1997 Microchip Technology Inc.
DS21225A-page 7
6.0
WRITE OPERATIONS
6.1
Byte Write
Following the start condition from the master, the con-
trol code (four bits), the device select (three bits), and
the R/W bit which is a logic low are clocked onto the bus
by the master transmitter. This indicates to the
addressed slave receiver that a byte with a word
address will follow after it has generated an acknowl-
edge bit during the ninth clock cycle. Therefore the next
byte transmitted by the master is the high-order byte of
the word address and will be written into the address
pointer of the 24LC32A MODULE. The next byte is the
least signicant address byte. After receiving another
acknowledge signal from the 24LC32A the master
device will transmit the data word to be written into the
addressed memory location.
The 24LC32A acknowledges again and the master
generates a stop condition. This initiates the internal
write cycle, and during this time the 24LC32A will not
generate acknowledge signals (see Figure 6-1).
6.2
Page Write
The write control byte, word address and the rst data
byte are transmitted to the 24LC32A in the same way
as in a byte write. But instead of generating a stop con-
dition, the master transmits up to 32 bytes which are
temporarily stored in the on-chip page buffer and will be
written into memory after the master has transmitted a
stop condition. After receipt of each word, the ve lower
address pointer bits are internally incremented by one.
If the master should transmit more than 32 bytes prior
to generating the stop condition, the address counter
will roll over and the previously received data will be
overwritten. As with the byte write operation, once the
stop condition is received, an internal write cycle will
begin. (see Figure 6-2).
FIGURE 6-1:
BYTE WRITE
FIGURE 6-2:
PAGE WRITE
S
T
A
R
T
S
T
O
P
ADDRESS
HIGH BYTE
DATA
CONTROL
BYTE
A
C
K
A
C
K
A
C
K
BUS ACTIVITY
MASTER
SDA LINE
BUS ACTIVITY
A
C
K
ADDRESS
LOW BYTE
0 0 0 0
0
1
S
T
A
R
T
S
T
O
P
ADDRESS
HIGH BYTE
CONTROL
BYTE
A
C
K
A
C
K
A
C
K
BUS ACTIVITY
MASTER
SDA LINE
BUS ACTIVITY
A
C
K
ADDRESS
LOW BYTE
0 0 0 0
DATA BYTE 0
A
C
K
DATA BYTE 31
0 0 0 0
0
1
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24LC32AX/ST 功能描述:電可擦除可編程只讀存儲(chǔ)器 4kx8 - 5/2.5V RotPin RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
24LC32AX-E/ST 功能描述:電可擦除可編程只讀存儲(chǔ)器 4kx8 - 5/2.5V RotPin RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
24LC32AX-I/ST 功能描述:電可擦除可編程只讀存儲(chǔ)器 4kx8 - 5/2.5V RotPin RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
24LC32AXT/ST 功能描述:電可擦除可編程只讀存儲(chǔ)器 4kx8 - 5/2.5V RotPin RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
24LC32AXT-E/ST 功能描述:電可擦除可編程只讀存儲(chǔ)器 4kx8 - 5/2.5V RotPin RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
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