參數(shù)資料
型號： MAX6917EO50
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述： REAL TIME CLOCK, PDSO20
封裝： 0.150 INCH, 0.025 INCH PITCH, MO-137AD, QSOP-20
文件頁數(shù)： 28/31頁
文件大?。?/td> 349K
代理商： MAX6917EO50
MAX6917
I2C-Compatible RTC with Microprocessor
Supervisor, Alarm, and NV RAM Controller
6
_______________________________________________________________________________________
Note 1: VRST is the reset threshold for VCC. See the Selector Guide section.
Note 2: All parameters are 100% tested at TA = +85
°C. Limits overtemperature are guaranteed by design and are not
production tested.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
FAST I2C-BUS TIMING (Figure 2 (Note 9))
SCL Clock Frequency
fSCL
(Note 10)
800
400,000
Hz
Bus Timeout
tTIMEOUT
12
s
Bus Free Time Between STOP
and START Conditions
tBUF
1.3
s
Hold Time After (Repeated)
START Conditions
tHD:STA
After this period, the first clock is generated
0.6
s
Repeated START Condition
Setup Time
tHD:STA
0.6
s
STOP Condition Setup Time
tSU:STO
0.6
s
Data Hold Time
tHD:DAT
(Notes 11, 14)
0
0.9
s
Data Setup Time
tSU:DAT
100
ns
SCL Low Period
tLOW
1.3
s
SCL High Period
tHIGH
0.6
s
SCL/SDA Rise Time (Receiving)
tR
(Note 12)
20 +
0.1
× Cb
300
ns
SCL/SDA Fall Time (Receiving)
tF
(Notes 12, 13)
20 +
0.1
× Cb
300
ns
SCL/SDA Fall Time (Transmitting)
tF
(Notes 12, 13)
20 +
0.1
× Cb
250
ns
Pulse Width of Spike Suppressed
tSP
050
ns
Capacitive Load for Each Bus
Line
Cb
400
pF
BATTERY-TEST TIMING (Figure 18)
Battery Test to BATT_LO Active
tBL
(Note 8)
1
s
Battery-Test Cycle—Normal
tBTCN
(Note 8)
24
hr
Battery-Test Pulse Width
tBTPW
(Note 8)
1
s
AC ELECTRICAL CHARACTERISTICS
(VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VCC = 0, VBATT = 2V,
IOH = -100A
VOUT -
0.1V
VCC = 2.7V, VBATT = 0,
IOH = -1mA
VOUT -
0.3V
32kHz and 1Hz
OUT High Voltage
VOH
VCC = 4.5V, VBATT = 0,
IOH = -2mA
VOUT -
0.4V
V
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2)
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