DS1388 데이터 시트보기 (PDF) - Maxim Integrated
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DS1388 Datasheet PDF : 19 Pages
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I2C RTC/Supervisor with Trickle Charger
and 512 Bytes EEPROM
AC ELECTRICAL CHARACTERISTICS
(VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SCL Clock Frequency
Bus Free Time Between a STOP
and START Condition
Hold Time (Repeated) START
Condition (Note 11)
LOW Period of SCL Clock
HIGH Period of SCL Clock
Setup Time for a Repeated
START Condition
Data Hold Time (Notes 12, 13)
Data Setup Time (Note 14)
Rise Time of Both SDA and SCL
Signals (Note 15)
Fall Time of Both SDA and SCL
Signals (Note 15)
Setup Time for STOP Condition
SYMBOL
fSCL
tBUF
tHD:STA
tLOW
tHIGH
tSU:STA
tHD:DAT
tSU:DAT
tR
tF
tSU:STO
CONDITION
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Capacitive Load for Each Bus
Line (Note 15)
CB
I/O Capacitance (SDA, SCL, RST)
Pushbutton Debounce
Reset Active Time
EEPROM Write Cycle Time
Oscillator Stop Flag (OSF) Delay
(Note 16)
CI/O
PBDB
tRST
tWEE
tOSF
+25°C
MIN TYP
100
0
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0.6
4.7
0
0
100
250
20 +
0.1CB
20 +
0.1CB
0.6
4.0
160
160
8
20
MAX
400
100
UNITS
kHz
µs
µs
µs
µs
µs
0.9
µs
ns
300
ns
1000
300
ns
300
µs
400
pF
10
pF
180
ms
180
ms
10
ms
ms
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