參數(shù)資料
型號(hào): MAX6917EO50
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)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(yè)數(shù): 26/31頁(yè)
文件大?。?/td> 349K
代理商: MAX6917EO50
MAX6917
I2C-Compatible RTC with Microprocessor
Supervisor, Alarm, and NV RAM Controller
4
_______________________________________________________________________________________
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)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CE_OUT Active-Low Delay After
VCC > VRST
tRP
140
200
280
ms
CE_OUT High Voltage
VOH
IOH = -100A, VBATT = 2V, VCC = 0,
RESET = low
0.8 x
VBATT
V
MR INPUT (Figure 10)
VIL
0.8
MR Input Voltage
VIH
2.0
V
MR Pullup Resistance
Internal pullup resistor
50
k
MR Minimum Pulse Width
1s
MR Glitch Immunity
tGW
35
ns
MR to RESET Delay
tRD
VCC = VCC(MIN), VBATT = 0
450
600
ns
WDI INPUT (Figure 12)
WDI Initial Timeout Period
VCC > VRST from rising edge of RESET
1.00
1.6
2.25
s
tWDL
Long watchdog timeout period
1.00
1.6
2.25
s
Watchdog Timeout Period
tWDS
Short watchdog timeout period
140
200
280
ms
Minimum WDI Input Pulse Width
tWDI
100
ns
VIL
0.8
WDI Input Threshold
VIH
2.0
V
WDI Input-Leakage Current
VWDI = VCC or GND
-100
+100
nA
VCC Standby Current with WDI
Max Frequency
ICCSW
Watchdog frequency = 1MHz,
VCC = VCC(MAX), 1Hz, 32kHz outputs
disabled (Note 5)
450
A
BATTERY TEST AND TRIP (Figures 17, 18, and 19)
VBATT Trip Point
VBTP
Internal mode
2.45
2.6
2.70
V
TRIP Input Threshold
VTRIP
VCC = VCC(MAX), VBATT = 2V,
external mode
1.14
1.24
1.31
V
TRIP Input Comparator
Hysteresis
VTRIP_HYST
10
mV
TRIP Input Current
ITRIP_LKG
External mode
-100
+100
nA
Battery Test Load
RLOAD_INT
Internal
0.65
0.91
1.30
M
TEST Output-High Voltage
VTEST_HIGH ITEST = -5mA
VOUT -
0.3V
V
TEST Output-Low Voltage
VTEST_LOW
ITEST = 5mA
0.3
V
BATT_LO, ALM OUTPUT
VBATT = 2V, VCC = 0, IOL = 5mA
0.5
VCC = 2.7V, VBATT = 0, IOL = 10mA
0.5
Output Low Voltage
VOL
VCC = 4.5V, VBATT = 0, IOL = 20mA
0.5
V
Off-Leakage
ILKG
-100
+100
nA
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