參數(shù)資料
型號(hào)： AT24C08A-10PC-2.7
廠商： ATMEL CORP
元件分類： DRAM
英文描述： 2-Wire Serial EEPROM
中文描述： 1K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8
封裝： 0.300 INCH, PLASTIC, DIP-8
文件頁(yè)數(shù)： 4/13頁(yè)
文件大?。?/td> 182K
代理商： AT24C08A-10PC-2.7
AT24C02A/04A/08A
4
Note:
1. This parameter is characterized and is not 100% tested.
Device Operation
CLOCK and DATA TRANSITIONS:
The SDA pin is nor-
mally pulled high with an external 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 (refer to Start and Stop Definition timing dia-
gram).
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 (refer to Start and Stop Definition timing diagram).
ACKNOWLEDGE:
All addresses and data words are seri-
ally 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 AT24C02A/04A/08A 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, any 2-wire part can be reset by follow-
ing 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.
AC Characteristics
Applicable over recommended operating range from T
A
= -40
°
C to +85
°
C, V
CC
= +1.8V to +5.5V, CL = 1 TTL Gate and
100 pF (unless otherwise noted).
Symbol
Parameter
2.7-, 2.5-, 1.8-volt
5.0-volt
Units
Min
Max
Min
Max
f
SCL
Clock Frequency, SCL
100
400
kHz
t
LOW
Clock Pulse Width Low
4.7
1.2
μ
s
t
HIGH
Clock Pulse Width High
4.0
0.6
μ
s
t
I
Noise Suppression Time
(1)
100
50
ns
t
AA
Clock Low to Data Out Valid
0.1
4.5
0.1
0.9
μ
s
t
BUF
Time the bus must be free before
a new transmission can start
(1)
4.7
1.2
μ
s
t
HD.STA
Start Hold Time
4.0
0.6
μ
s
t
SU.STA
Start Set-up Time
4.7
0.6
μ
s
t
HD.DAT
Data In Hold Time
0
0
μ
s
t
SU.DAT
Data In Set-up Time
200
100
ns
t
R
Inputs Rise Time
(1)
1.0
0.3
μ
s
t
F
Inputs Fall Time
(1)
300
300
ns
t
SU.STO
Stop Set-up Time
4.7
0.6
μ
s
t
DH
Data Out Hold Time
100
50
ns
t
WR
Write Cycle Time
10
10
ms
Endurance
(1)
5.0V, 25
°
C, Page Mode
1M
1M
Write
Cycles
相關(guān)PDF資料
PDF描述
AT24C08A-10PI 2-Wire Serial EEPROM
AT24C08A-10PC-1.8 2-Wire Serial EEPROM
AT24C08AN-10SC 2-Wire Serial EEPROM
AT24C1024-10CI-2.7 2-wire Serial EEPROM 1M (131,072 x 8)
AT24C1024C1-10CI-2.7 2-wire Serial EEPROM 1M (131,072 x 8)
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