參數(shù)資料
型號: AT24C01B
廠商: Atmel Corp.
英文描述: Two-wire Serial EEPROM
中文描述: 兩線串行EEPROM
文件頁數(shù): 10/21頁
文件大?。?/td> 458K
代理商: AT24C01B
10
AT24C01B [Preliminary]
5156B–
S
EEPR–5/06
b
yte of the first p
a
ge. The
a
ddress “roll over” during write is from the l
a
st
b
yte of the current
p
a
ge to the first
b
yte of the s
a
me p
a
ge.
Once the device
a
ddress with the re
a
d/write select
b
it set to one is clocked in
a
nd
a
cknowl-
edged
b
y the EEPROM, the current
a
ddress d
a
t
a
word is seri
a
lly clocked out. The
microcontroller does not respond with
a
n input zero
b
ut does gener
a
te
a
following stop condi-
tion (see Figure 10 on p
a
ge 11).
RANDOM READ:
A r
a
ndom re
a
d requires
a
“dummy”
b
yte write sequence to lo
a
d in the d
a
t
a
word
a
ddress. Once the device
a
ddress word
a
nd d
a
t
a
word
a
ddress
a
re clocked in
a
nd
a
cknowledged
b
y the EEPROM, the microcontroller must gener
a
te
a
nother st
a
rt condition.
The microcontroller now initi
a
tes
a
current
a
ddress re
a
d
b
y sending
a
device
a
ddress with the
re
a
d/write select
b
it high. The EEPROM
a
cknowledges the device
a
ddress
a
nd seri
a
lly clocks
out the d
a
t
a
word. The microcontroller does not respond with
a
zero
b
ut does gener
a
te
a
fol-
lowing stop condition (see Figure 11 on p
a
ge 12).
SEQUENTIAL READ:
S
equenti
a
l re
a
ds
a
re initi
a
ted
b
y either
a
current
a
ddress re
a
d or
a
r
a
n-
dom
a
ddress re
a
d. After the microcontroller receives
a
d
a
t
a
word, it responds with
a
n
a
cknowledge. As long
a
s the EEPROM receives
a
n
a
cknowledge, it will continue to increment
the d
a
t
a
word
a
ddress
a
nd seri
a
lly clock out sequenti
a
l d
a
t
a
words. When the memory
a
ddress limit is re
a
ched, the d
a
t
a
word
a
ddress will “roll over”
a
nd the sequenti
a
l re
a
d will con-
tinue. The sequenti
a
l re
a
d oper
a
tion is termin
a
ted when the microcontroller does not respond
with
a
zero
b
ut does gener
a
te
a
following stop condition (see Figure 12 on p
a
ge 12).
相關(guān)PDF資料
PDF描述
AT24C02AN-10SQ-2.7 The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
AT24C04A The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
AT24C04A-10PE-2.7 The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
AT24C04A-10PQ-2.7 The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
AT24C04A-10TE-2.7 The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
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