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參數(shù)資料
| 型號： | DS17487N-5 |
| 英文描述： | 49.9 1% 1/4W 1206 |
| 中文描述： | 3V/5V實(shí)時時鐘 |
| 文件頁數(shù)： | 2/38頁 |
| 文件大?。?/td> | 427K |
| 代理商： | DS17487N-5 |
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DS17485/DS17487
2 of 38
ORDERING INFORMATION
PART #
DESCRIPTION
DS17485XX-X RTC Chip
DS17487X-X RTC Module; 24-pin DIP
PIN DESCRIPTION
X1
- Crystal Input
X2
- Crystal Output
RCLR
- RAM Clear Input
AD0–AD7 - Multiplexed Address/Data Bus
PWR
- Power-On Interrupt Output (Open Drain)
KS
- Kickstart Input
CS
- RTC Chip-Select Input
ALE
- RTC Address Strobe
WR
- RTC Write Data Strobe
RD
- RTC Read Data Strobe
IRQ
- Interrupt Request Output (Open Drain)
SQW
- Square-Wave Output
VCC
- +3V or +5V Main Supply
GND
- Ground
VBAT
- Battery + Supply
VBAUX
- Auxiliary Battery Supply
NC
- No Connect
DESCRIPTION
The DS17485/DS17487 are real-time clocks (RTC) designed as successors to the industry standard
DS1285, DS1385, DS1485, DS1585, and DS1685 PC real-time clocks. These devices provide the
industry standard DS1285 clock function with either +3V or +5V operation. The DS17485 also
incorporates a number of enhanced features including a silicon serial number, power-on/off control
circuitry, 114 bytes of user NV SRAM plus 4kB of additional NV RAM, and 32.768kHz output for
sustaining power management activities.
3 +3V operating rang
5
+5V operating range
blank commercial temp range
N industrial
3 +3V operating range
5 +5V operating range
blank commercial temp range
N
industrial temp range
blank 24-pin DIP
E
28- pin TSOP
S
24- pin SO
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS17486 | 3V/5V Real-Time Clock |
| DS17488 | 3V/5V Real-Time Clock |
| DS1775 | SOT23-5 Digital Thermometer and Thermostat |
| DS17885 | 3V/5V Real-Time Clock |
| DS17885N-3 | 3V/5V Real-Time Clock |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS17488 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Real-Time Clock |
| DS1750Y-150 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
| DS1750Y-150-IND | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
| DS1750Y-200 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
| DS1750Y-200-IND | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
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