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参数资料
| 型号： | DS1393U-33 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | XO, clock |
| 英文描述： | Low-Voltage SPI/3-Wire RTCs with Trickle Charger |
| 中文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO10 |
| 封装： | MO-187CBA, MICRO, SOP-10 |
| 文件页数： | 15/24页 |
| 文件大小： | 742K |
| 代理商： | DS1393U-33 |
The DY/
DT
bits (bit 6 of the alarm day/date registers)
control whether the alarm value stored in bits 0 to 5 of
that register reflects the day of the week or the date of
the month. If DY/
DT
is written to logic 0, the alarm is the
result of a match with date of the month. If DY/
DT
is
written to a logic 1, the alarm is the result of a match
with day of the week.
When the RTC register values match alarm register set-
tings, the alarm-flag (AF) bit is set to logic 1. If the
alarm-interrupt enable (AIE) is also set to logic 1 and
the INTCN bit is set to logic 1, the alarm condition acti-
vates the SQW/
INT
signal.
Since the contents of register 08h are expected to nor-
mally contain a match value of 00–99 decimal, the
codes F[0–9], and FF have been used to tell the part to
mask the tenths or hundredths of seconds accordingly.
Power-Up/Down, Reset, and
Pushbutton Reset Functions
A precision temperature-compensated reference and
comparator circuit monitors the status of V
CC
. When an
out-of-tolerance condition occurs, an internal power-fail
signal is generated that blocks read/write access to the
device and forces the
RST
pin (DS1391/DS1393 only)
low. When V
CC
returns to an in-tolerance condition, the
internal power-fail signal is held active for t
RST
to allow
the power supply to stabilize, and the
RST
(DS1391/
DS1393 only) pin is held low. If the
EOSC
bit is set to
logic 1 (to disable the oscillator in battery-backup
mode), the internal power-fail signal and the
RST
pin is
kept active for t
RST
plus the startup time of the oscillator.
The DS1391/DS1393 provide for a pushbutton switch to
be connected to the
RST
output pin. When the
DS1391/DS1393 are not in a reset cycle, it continuously
monitors the
RST
signal for a low-going edge. If an
edge is detected, the part debounces the switch by
pulling the
RST
pin low and inhibits read/write access.
After PB
DB
has expired, the part continues to monitor
the
RST
line. If the line is still low, it continues to monitor
the line looking for a rising edge. Upon detecting
release, the part forces the
RST
pin low and holds it low
for an additional PB
DB
.
D
Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
____________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1393U-33+ | 功能描述:实时时钟 Low-V SPI/3-Wire With Trickle Charger RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1394 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Voltage SPI/3-Wire RTCs with Trickle Charger |
| DS1394U-33+ | 功能描述:实时时钟 Low-V SPI/3-Wire With Trickle Charger RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1394U-33+T&R | 制造商:Maxim Integrated Products 功能描述:SERIAL SPI RTC 3.3V USOP PB-FREE TR - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC SPI 3WIRE W/CHRGR 10-MSOP |
| DS1394U-33+T&R | 功能描述:实时时钟 Low-V SPI/3-Wire With Trickle Charger RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
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