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BR24T04FVWGTR Datasheet(PDF) 3 Page - Rohm

Part # BR24T04FVWGTR
Description  High Reliability Serial EEPROMs
Download  22 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BR24T04FVWGTR Datasheet(HTML) 3 Page - Rohm

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Technical Note
3/21
BR24T□□□□Series
www.rohm.com
2011.03 - Rev.A
© 2011 ROHM Co., Ltd. All rights reserved.
●Action timing characteristics (Unless otherwise specified, Ta=-40~+85℃, VCC=1.7~5.5V)
Parameter
Symbol
Limits
Unit
Min.
Typ.
Max.
SCL frequency
fSCL
400
kHz
Data clock “HIGH“ time
tHIGH
0.6
µs
Data clock “LOW“ time
tLOW
1.2
µs
SDA, SCL rise time
*1
tR
1.0
µs
SDA, SCL fall time
*1
tF
1.0
µs
Start condition hold time
tHD:STA
0.6
µs
Start condition setup time
tSU:STA
0.6
µs
Input data hold time
tHD:DAT
0
ns
Input data setup time
tSU:DAT
100
ns
Output data delay time
tPD
0.1
0.9
µs
Output data hold time
tDH
0.1
µs
Stop condition setup time
tSU:STO
0.6
µs
Bus release time before transfer start
tBUF
1.2
µs
Internal write cycle time
tWR
5
ms
Noise removal valid period (SDA, SCL terminal)
tI
0.1
µs
WP hold time
tHD:WP
1.0
µs
WP setup time
tSU:WP
0.1
µs
WP valid time
tHIGH:WP
1.0
µs
*1
Not 100% TESTED.
Condition Input data level:VIL=0.2×Vcc VIH=0.8×Vcc
Input data timing refarence level: 0.3×Vcc/0.7×Vcc
Output data timing refarence level: 0.3×Vcc/0.7×Vcc
Rise/Fall time : ≦20ns
●Sync data input / output timing
Input read at the rise edge of SCL
Data output in sync with the fall of SCL
Fig.1-(a) Sync data input / output timing
Fig.1-(b) Start-stop bit timing
Fig.1-(c) Write cycle timing
Fig.1-(d) WP timing at write execution
Fig.1-(e) WP timing at write cancel
SCL
SDA
(input)
SDA
(output)
tR
tF
tHIGH
tSU:DAT
tLOW
tHD:DAT
tDH
tPD
tBUF
70%
70%
30%
70% 70%
30%
30%
70%
70%
30%
70%
70%
70%
70%
30%
30%
30%
70%
70%
tSU:STA
tHD:STA
START CONDITION
tSU:STO
STOP CONDITION
30%
30%
70%
70%
D0
ACK
tWR
write data
(n-th address)
START CONDITION
STOP CONDITION
70%
70%
DATA(1)
D0
ACK
D1
DATA(n)
ACK
tWR
30%
70%
STOP CONDITION
tHD:WP
tSU:WP
30%
70%
DATA(1)
D0
D1
ACK
DATA(n)
ACK
tHIGH:WP
70%
70%
tWR
70%


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