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)： 29/31頁(yè)
文件大小： 349K
代理商： MAX6917EO50
MAX6917
I2C-Compatible RTC with Microprocessor
Supervisor, Alarm, and NV RAM Controller
_______________________________________________________________________________________
7
VCC-TO-OUT VOLTAGE vs. TEMPERATURE
MAX6917
toc01
TEMPERATURE (
°C)
V
CC
-TO-OUT
VOLTAGE
(mV)
60
35
10
15
20
25
30
35
40
10
-40
85
VCC = 3V
VBATT = 0V
IOUT = 35mA
VCC = 3.3V
VBATT = 0V
IOUT = 35mA
BATT-TO-OUT VOLTAGE vs. TEMPERATURE
BATT-TO-OUT
VOLTAGE
(mV)
1
2
3
4
5
6
7
8
9
10
0
MAX6917
toc02
TEMPERATURE (
°C)
60
35
10
15
-40
85
VCC = 0V
VBATT = 3V
IOUT = 800
A
VCC = 0V
VBATT = 2V
IOUT = 400
A
TIMEKEEPING CURRENT
vs. TEMPERATURE
I BATT
(
A)
1.0
1.2
1.4
1.6
0.4
0.6
0.8
MAX6917
toc03a
TEMPERATURE (
°C)
60
35
10
15
-40
85
SCL = SDA = VCC = 0V
1Hz, 32kHz OUTPUTS DISABLED
XTAL FAIL DISABLED
VBATT = 3V
TIMEKEEPING CURRENT
vs. TEMPERATURE
I BATT
(
A)
1.0
1.2
1.4
1.6
0.4
0.6
0.8
MAX6917
toc03b
TEMPERATURE (
°C)
60
35
10
15
-40
85
VBATT = 3V
SCL = SDA = VCC = 0V
1Hz, 32kHz OUTPUTS DISABLED
XTAL FAIL ENABLED
Typical Operating Characteristics
(VCC = 3V, VBATT = 3V, TA = +25°C, unless otherwise noted.)
AC 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.) (Note 2)
Note 3:
I2C serial interface is operational for VCC > VRST.
Note 4:
See the Detailed Description section (VOUT function).
Note 5:
IBATT is specified with SDA = SCL = VCC, CE_IN = WDI = GND, VOUT , CE_OUT, and MR floating. ICCS is specified with SDA =
SCL = VCC, CE_IN = WDI = GND, VOUT, CE_OUT, and MR floating.
Note 6:
I2C serial interface operating at 400kHz, SDA pulled high, and WDI = VCC or GND, VOUT and CE_OUT floating.
Note 7:
For OUT switchover to BATT, VCC must fall below VRST and VBATT. For OUT switchover to VCC, VCC must be above VRST or
above VBATT.
Note 8:
Guaranteed by design. Not subject to production testing.
Note 9:
All values are referred to VIH (MIN) and VIL(MAX) levels.
Note 10: Minimum SCL clock frequency is limited by the MAX6917 bus timeout feature, which resets the serial bus interface if either
SDA or SCL is held low for 1s to 2s. When using the burst read or write command, all 96 bytes of RAM must be read/written
within the timeout period. See the Timeout Feature section.
Note 11: A device must internally provide a hold time of at least 300ns for the SDA signal (referred to the VIH(MIN) of the SCL signal) to
bridge the undefined region of the falling edge of SCL.
Note 12: Cb is the total capacitance of one bus line in pF.
Note 13: The maximum tF for the SDA and SCL bus lines is specified at 300ns. The maximum fall time for the SDA output stage tF is
specified at 250ns. This allows series-protection resistors to be connected between the SDA/SCL pins and the SDA/SCL bus
lines without exceeding the maximum specified tF.
Note 14: The maximum tHD:DAT only has to be met if the device does not stretch the LOW period (tLOW) of the SCL signal.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6917EO50+ 功能描述:實(shí)時(shí)時(shí)鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
MAX6917EO50+T 功能描述:實(shí)時(shí)時(shí)鐘 Integrated Circuits (ICs) RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
MAX691AC/D 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX691ACPE 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX691ACPE+ 功能描述:監(jiān)控電路 MPU Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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