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AT21CS01 датащи(PDF) 15 Page - Microchip Technology

номер детали AT21CS01
подробное описание детали  Single-Wire, I/O Powered 1-Kbit (128 x 8) Serial EEPROM with a Unique, Factory-Programmed 64-Bit Serial Number
PDF  47 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

AT21CS01 датащи(HTML) 15 Page - Microchip Technology

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Figure 3-3. Logic 1 Input Condition Waveform
SI/O
tLOW1
VIL
VIH
tBIT
MASTER
PULL-UP RESISTOR
3.1.3.2
Start/Stop Condition
All transactions to the AT21CS01/11 begin with a Start condition; therefore, a Start can only be
transmitted by the master to the slave. Likewise, all transactions are terminated with a Stop condition and
thus a Stop condition can only be transmitted by the master to the slave.
The Start and Stop conditions require identical biasing of the SI/O line. The Start/Stop condition is
created by holding the SI/O line at a voltage of VPUP for a duration of tHTSS. Refer to AT21CS01/11 AC
Characteristics for timing minimums and maximums.
Figure 3-4 and Figure 3-5 depict the Start and Stop conditions.
Figure 3-4. Start Condition Waveform
SI/O
VIL
VIH
tHTSS
MASTER
PULL-UP RESISTOR
Figure 3-5. Stop Condition Waveform
SI/O
VIL
VIH
tHTSS
MASTER
PULL-UP RESISTOR
Previous
Bit Frame
tRCV
3.1.3.3
Communication Interruptions
In the event that a protocol sequence is interrupted midstream, this sequence can be resumed at the
point of interruption if the elapsed time of inactivity (where SI/O is idle) is less that the maximum tBIT time.
The maximum allowed value will differ if the device is High-Speed mode or Low-Speed mode (see Setting
the Device Speed).
AT21CS01/AT21CS11
© 2017 Microchip Technology Inc.
Datasheet
DS20005857A-page 15



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