參數(shù)資料
型號: AT24C04N-10SI-1.8
廠商: ATMEL CORP
元件分類: DRAM
英文描述: Circular Connector; No. of Contacts:32; Series:; Body Material:Aluminum; Connecting Termination:Solder; Connector Shell Size:18; Circular Contact Gender:Socket; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:18-32
中文描述: 512 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8
封裝: 0.150 INCH, PLASTIC, MS-012AA, SOIC-8
文件頁數(shù): 9/14頁
文件大?。?/td> 261K
代理商: AT24C04N-10SI-1.8
9
AT24C01ASC/02SC/04SC/08SC/16SC
1610B
SEEPR
04/04
will the EEPROM respond with a
0
(ACK), allowing the read or write sequence to
continue.
Read Operations
Read operations are initiated the same way as write operations, with the exception that
the read/write select bit in the device address word is set to
1
. There are three read
operations: current address read, random address read, and sequential read.
CURRENT ADDRESS READ:
The internal data word address counter maintains the
last address accessed during the last read or write operation, incremented by one. This
address stays valid between operations as long as the chip power is maintained. The
address
rollover
during read is from the last byte of the last memory page to the first
byte of the first page. The address
rollover
during write is from the last byte of the cur-
rent page to the first byte of the same page.
Once the device address with the read/write select bit set to
1
is clocked in and
acknowledged by the EEPROM, the current address data word is serially clocked out.
The microcontroller does not respond with an input
0
but does generate a following
stop condition (refer to Figure 9)
Figure 9.
Current Address Read.
RANDOM READ:
A random read requires a
dummy
byte write sequence to load in the
data word address. Once the device address word and data word address are clocked
in and acknowledged by the EEPROM, the microcontroller must generate another start
condition. The microcontroller now initiates a current address read by sending a device
address with the read/write select bit high. The EEPROM acknowledges the device
address and serially clocks out the data word. The microcontroller does not respond
with a
0
(NO ACK) but does generate a following stop condition (refer to Figure 10).
Figure 10.
Random Read
Note:
* = DON
T CARE bit for 1K)
S
T
A
R
T
SDA LINE
M
S
B
L
S
B
R
/
W
A
C
K
DATA
N
O
A
C
K
DEVICE
ADDRESS
R
E
A
D
WORD
ADDRESS n
L
S
B
A
C
K
M
S
B
L
S
B
相關(guān)PDF資料
PDF描述
AT24C04N-10SI-2.5 2-Wire Serial EEPROM
AT24C04N-10SI-2.7 RECEPT
AT24C04N-10SU-1.8 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT02; Number of Contacts:21; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Box Mount Receptacle
AT24C04N-10SU-2.7 PT 55C 55#20 PIN RECP
AT24C04Y1-10YU-1.8 PT 39C 2#16,37#20 SKT PLUG
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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AT24C04N10SI27 制造商:Atmel Corporation 功能描述: