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參數(shù)資料
| 型號(hào)： | DS1386 |
| 英文描述： | RAMified Watchdog Timekeeper |
| 中文描述： | RAMified看門狗計(jì)時(shí)器 |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 263K |
| 代理商： | DS1386 |
DS1386/DS1386P
2 of 20
ORDERING INFORMATION
DS1386
XX-120
32-pin DIP Module
08
8k x 8 NV SRAM
32
32k x 8 NV SRAM
*DS1386P
XX-120
34-pin PowerCap Module Board
08
8k x 8 NV SRAM
32
32k x 8 NV SRAM
*DS9034PCX
PowerCap required
(must be ordered separately)
PIN DESCRIPTION
INTA
- Interrupt Output A (open drain)
INTB
(INTB)
- Interrupt Output B (open drain)
A0-A14
- Address Inputs
DQ0-DQ7
- Data Input/Output
CE
- Chip Enable
OE
- Output Enable
WE
- Write Enable
VCC
- +5V
GND
- Ground
SQW
- Square Wave Output
NC
- No Connection
X1, X2
- Crystal Connection
VBAT
- Battery Connection
DESCRIPTION
The DS1386 is a nonvolatile static RAM with a full-function Real Time Clock (RTC), alarm, watchdog
timer, and interval timer which are all accessible in a byte-wide format. The DS1386 contains a lithium
energy source and a quartz crystal, which eliminates the need for any external circuitry. Data contained
within 8k or 32k by 8-bit memory and the timekeeping registers can be read or written in the same
manner as bytewide static RAM. The timekeeping registers are located in the first 14 bytes of memory
space. Data is maintained in the RAMified Timekeeper by intelligent control circuitry, which detects the
status of VCC and write protects memory when VCC is out of tolerance. The lithium energy source can
maintain data and real time for over ten years in the absence of VCC. Timekeeper information includes
hundredths of seconds, seconds, minutes, hours, day, date, month, and year. The date at the end of the
month is automatically adjusted for months with less than 31 days, including correction for leap year.
The RAMified Timekeeper operates in either 24-hour or 12-hour format with an AM/PM indicator. The
watchdog timer provides alarm interrupts and interval timing between 0.01seconds and 99.99 seconds.
The real time alarm provides for preset times of up to one week. Interrupts for both watchdog and RTC
will operate when system is powered down. Either can provide system “wake-up” signals.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1386P | RAMified Watchdog Timekeeper |
| DS1855 | Dual Nonvolatile Digital Potentiometer and Secure Memory |
| DS1867 | Dual Digital Potentiometer with EEPROM |
| DS1869 | 3V Dallastat Electronic Digital Rheostat |
| DS1231 | Low-Noise, High-Speed, 16-Bit Accurate CMOS Operational Amplifier 8-SOIC -40 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS138608-120 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:RAMified Watchdog Timekeeper |
| DS1386-08-150 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock |
| DS1386-32-120 | 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 |
| DS138632-120 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:RAMified Watchdog Timekeeper |
| DS1386-32-120+ | 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 |
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