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參數(shù)資料
| 型號： | DS12CR887-5+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 21/23頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RTC W/RAM 128 BYTE 24-EDIP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 14 |
| 類型： | 時鐘/日歷 |
| 特點： | 警報器，閏年，NVSRAM，方波輸出，涓流充電器 |
| 存儲容量： | 114B |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | 并聯(lián) |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 24-DIP 模塊（0.600"，15.24mm） |
| 供應(yīng)商設(shè)備封裝： | 24-EDIP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1433 (CN2011-ZH PDF) |
DS12R885/DS12CR887/DS12R887
RTCs with Constant-Voltage Trickle Charger
7
Maxim Integrated
POWER-UP/POWER-DOWN CHARACTERISTICS
(TA = -40°C to +85°C) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Recovery at Power-Up
tRPU
20
200
ms
VCC Fall Time; VPF(MAX) to
VPF(MIN)
tF
300
s
VCC Rise Time; VPF(MIN) to
VPF(MAX)
tR
0s
CAPACITANCE
(TA = +25°C)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Capacitance on All Input Pins
Except X1 and X2
CIN
(Note 9)
10
pF
Capacitance on IRQ, SQW, and
DQ Pins
CIO
(Note 9)
10
pF
DATA RETENTION (DS12CR887)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Expected Data Retention
tDR
TA = +25°C
5
Years
AC TEST CONDITIONS
PARAMETER
TEST CONDITIONS
Input Pulse Levels (-5)
0 to 3.0V
Input Pulse Levels (-33)
0 to 2.7V
Output Load Including Scope and Jig (-5)
50pF + 1TTL Gate
Output Load Including Scope and Jig (-33)
25pF + 1TTL Gate
Input and Output Timing Measurement Reference Levels
Input/Output: VIL maximum and VIH minimum
Input-Pulse Rise and Fall Times
5ns
WARNING: Negative undershoots below -0.3V while the part is in battery-backed mode may cause loss of data.
Note 1:
Limits at -40°C are guaranteed by design and not production tested.
Note 2:
All voltages are referenced to ground.
Note 3:
All outputs are open.
Note 4:
Specified with CS = DS = R/W = RESET = VCC; MOT, AS, AD0–AD7 = 0; VBACKUP open.
Note 5:
Applies to the AD0 to AD7 pins, the IRQ pin, and the SQW pin when each is in a high-impedance state.
Note 6:
The MOT pin has an internal 20k
Ω pulldown.
Note 7:
Measured with a 32.768kHz crystal attached to X1 and X2.
Note 8:
Measured with a 50pF capacitance load.
Note 9:
Guaranteed by design. Not production tested.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS12CR887-5+ | 功能描述:實時時鐘 RTC w/Constant V Trickle Charger 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 時間格式:HH:MM:SS RTC 存儲容量: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 |
| DS12R885-33 | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK MULTIPLEXED 114BYTE - Bulk |
| DS12R885-5 | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK MULTIPLEXED 114BYTE - Bulk |
| DS12R885S-33 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS12R885S-33/T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK MULTIPLEXED 114BYTE 24SOIC W - Tape and Reel |
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