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| 型號(hào)： | DS1374U-33+ |
| 廠(chǎng)商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 14/18頁(yè) |
| 文件大小： | 0K |
| 描述： | IC RTC I2C W/CHARGER 10-USOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 類(lèi)型： | 二進(jìn)制計(jì)數(shù)器 |
| 特點(diǎn)： | 警報(bào)器，方波輸出，涓流充電器，監(jiān)視計(jì)時(shí)器 |
| 時(shí)間格式： | 二進(jìn)制 |
| 數(shù)據(jù)格式： | 二進(jìn)制 |
| 接口： | I²C，2 線(xiàn)串口 |
| 電源電壓： | 2.97 V ~ 5.5 V |
| 電壓 - 電源，電池： | 1.3 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 10-µMAX |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁(yè)面： | 1434 (CN2011-ZH PDF) |
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DS1374
I2C, 32-Bit Binary Counter Watchdog RTC with
Trickle Charger and Reset Input/Output
_____________________________________________________________________
5
POWER-UP/POWER-DOWN CHARACTERISTICS
(TA = -40°C to +85°C) (Figure 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VCC Detect to Recognize Inputs
(VCC Rising)
tRPU
(Note 24)
250
ms
VCC Fall Time; VPF(MAX) to
VPF(MIN)
tF
300
μs
VCC Rise Time; VPF(MIN) to
VPF(MAX)
tR
0
μs
WARNING: Under no circumstances are negative undershoots, of any amplitude, allowed when the device is in write protection.
Note 2:
Limits at -40°C are guaranteed by design and not production tested.
Note 3:
All voltages are referenced to ground.
Note 4:
VBACKUP should not exceed VCC MAX or 3.7V, whichever is greater.
Note 5:
The use of the 250
Ω trickle-charge resistor is not allowed at VCC > 3.63V and should not be enabled.
Note 6:
Measured at VCC = typ, VBACKUP = 0V, register 09h = A5h.
Note 7:
Measured at VCC = typ, VBACKUP = 0V, register 09h = A6h.
Note 8:
Measured at VCC = typ, VBACKUP = 0V, register 09h = A7h.
Note 9:
SCL only.
Note 10: SDA and SQW and INT.
Note 11: The RST pin has an internal 50k
Ω pullup resistor to VCC.
Note 12: Trickle charger disabled.
Note 13: ICCA—SCL clocking at max frequency = 400kHz.
Note 14: Specified with I2C bus inactive.
Note 15: Measured with a 32.768kHz crystal attached to the X1 and X2 pins.
Note 16: WDSTR = 1. BBSQW = 1 is required for operation when VCC is below the power-fail trip point (or absent).
Note 17: CB—total capacitance of one bus line in pF.
Note 18: After this period, the first clock pulse is generated.
Note 19: The maximum tHD:DAT only has to be met if the device does not stretch the low period (tLOW) of the SCL signal.
Note 20: A device must internally provide a hold time of at least 300ns for the SDA signal (referred to as the VIHMIN of the SCL sig-
nal) to bridge the undefined region of the falling edge of SCL.
Note 21: A fast-mode device can be used in a standard-mode system, but the requirement tSU:DAT
≥ to 250ns must be met. This is
automatically the case if the device does not stretch the low period of the SCL signal. If such a device does stretch the low
period of the SCL signal, it must output the next data bit to the SDA line tR max + tSU:DAT = 1000 + 250 = 1250ns before
the SCL line is released.
Note 22: Guaranteed by design. Not production tested.
Note 23: The parameter tOSF is the period of time the oscillator must be stopped for the OSF flag to be set over the voltage range of
0V
≤ VCC ≤ VCC MAX and 1.3V ≤ VBACKUP ≤ 3.7V.
Note 24: This delay applies only if the oscillator is enabled and running. If the EOSC bit is 1, the startup time of the oscillator is
added to this delay.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1374U-33/T&R | 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(xiàn)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 |
| DS1374U-33+ | 功能描述:實(shí)時(shí)時(shí)鐘 I2C 32-Bit Binary Counter Watchdog RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線(xiàn)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 |
| DS1374U-33+T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 10USOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:ELAPSED TIME COUNTER 3.3V TR LFREE 制造商:Maxim Integrated Products 功能描述:IC RTC I2C W/CHARGER 10-USOP 制造商:Maxim Integrated Products 功能描述:Real Time Clock I2C 32-Bit Binary Counter Watchdog |
| DS1374U-33+T&R | 功能描述:實(shí)時(shí)時(shí)鐘 I2C 32-Bit Binary Counter Watchdog RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線(xiàn)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 |
| DS1375 | 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:2-Wire Digital Input RTC with Alarm |
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