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AT21CS01 数据表(PDF) 9 Page - Microchip Technology

部件名 AT21CS01
功能描述  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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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

AT21CS01 数据表(HTML) 9 Page - Microchip Technology

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1.5.2
Data Communication Timing
Parameter and Condition(1)(2)
Symbol Frame Type
Standard
Speed(3)
High Speed
Units
Min.
Max.
Min.
Max.
Bit Frame Duration
tBIT
Input and
Output Bit
Frame
40
100
tLOW0 +
tPUP(4) +
tRCV
25
µs
SI/O High Time for Start/Stop
Condition
tHTSS
Input Bit
Frame
600
—
150
—
µs
SI/O Low Time, Logic ‘0’
Condition
tLOW0
Input Bit
Frame
24
64
6
16
µs
SI/O Low Time, Logic ‘1’
Condition
tLOW1
Input Bit
Frame
4
8
1
2
µs
Master SI/O Low Time During
Read
tRD
Output Bit
Frame
4
8 -
tPUP(4)
1
2 -
tPUP(4)
µs
Master Read Strobe Time
tMRS
Output Bit
Frame
tRD +
tPUP(4)
8
tRD +
tPUP(4)
2
µs
Data Output Hold Time (Logic
‘0’)
tHLD0
Output Bit
Frame
8
24
2
6
µs
Slave Recovery Time
tRCV
Input and
Output Bit
Frame
8
—
2(5)
—
µs
Noise Filtering Capability on
SI/O
tNOISE
Input Bit
Frame
0.5
—
—
—
µs
Note: 
1.
Parameters applicable over operating range in AT21CS01/11 DC and AC Operating Range, unless
otherwise noted.
2.
AC measurement conditions for the table above:
–
Loading capacitance on SI/O: 100 pF
–
RPUP (bus line pull-up resistor to VPUP): 1 kΩ; VPUP: 2.7V
3.
Standard Speed is not available on the AT21CS11.
4.
tPUP is the time required once the SI/O line is released to be pulled up from VIL to VIH. This value is
application specific and is a function of the loading capacitance on the SI/O line as well as the RPUP
chosen. Limits for these values are provided in AT21CS01 DC Characteristics(1).
5.
The system designer must select an combination of RPUP, CBUS, and tBIT such that the minimum
tRCV is satisfied. The relationship of tRCV within the bit frame can be expressed by the following
formula: tBIT = tLOW0 + tPUP + tRCV.
AT21CS01/AT21CS11
© 2017 Microchip Technology Inc.
Datasheet
DS20005857A-page 9



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