24lcs21 Microchip Technology Inc., 24lcs21 Datasheet - Page 12

• Manufacturer Part Number: 24lcs21
• Description: 1k 2.5v Dual Mode I 2 C? Serial Eeprom
• Manufacturer: Microchip Technology Inc.

24LCS21
FIGURE 7-2:
7.3
Sequential reads are initiated in the same way as a
random read except that after the 24LCS21 transmits
the first data byte, the master issues an acknowledge
as opposed to a Stop condition in a random read. This
directs the 24LCS21 to transmit the next sequentially
addressed 8-bit word (Figure 8-1).
To provide sequential reads, the 24LCS21 contains an
internal Address Pointer which is incremented by one
at the completion of each operation. This Address
Pointer allows the entire memory contents to be serially
read during one operation.
7.4
The 24LCS21 employs a V
which disables the internal erase/write logic if the V
is below 1.5 volts at nominal conditions.
The SDA, SCL and V
and filter circuits which suppress noise spikes to assure
proper device operation, even on a noisy bus.
DS21127F-page 12
Sequential Read
Noise Protection
Bus Activity
Master
SDA Line
Bus Activity
CLK
RANDOM READ
S
T
A
R
T
S
inputs have Schmitt Trigger
CC
1 0 1 0 0 0 0 0
threshold detector circuit
Control
Byte
A
C
K
CC
Address
Word
A
C
K
S
T
A
R
T
S
1
0
1
Control
Byte
0
0
0
0
1
© 2005 Microchip Technology Inc.
A
C
K
Data n
N
O
A
C
K
S
T
O
P
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