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參數(shù)資料
| 型號： | DS1372U+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 9/12頁 |
| 文件大小： | 0K |
| 描述： | IC BINARY COUNTER 32-BIT 8-USOP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 3,000 |
| 類型： | 二進制計數(shù)器 |
| 特點： | 警報器，方波輸出，監(jiān)視計時器 |
| 時間格式： | 二進制 |
| 數(shù)據(jù)格式： | 二進制 |
| 接口： | I²C，2 線串口 |
| 電源電壓： | 2.4 V ~ 5.5 V |
| 電壓 - 電源，電池： | 1.3 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-uMAX |
| 包裝： | 帶卷 (TR) |
DS1372
Alarm Operation
The alarm counter is a 24-bit counter in the address
range 04h–06h. When the alarm counter is written, a
seed register is written with the alarm counter value.
When the alarm counter enable (ACE) bit in the Control
Register is set to 1, the counter begins counting down
from the seed value. When the counter reaches zero, it
sets the AF bit in the Status Register, if the AF bit is not
already set. If the AIE and INTCN bits are both set to a
logic 1, the SQW/INT pin goes low and remains low
until AF is written to logic 0. The counter is then
reloaded with the seed value and the countdown
restarts. When the counter is read, the current counter
value is latched into a register, which is output on the
serial data line while the counter continues to decre-
ment. The counter is disabled if the seed value is zero
or if ACE = 0. Whenever the ACE is set from 0 to 1, the
counter is reloaded with the current seed value and the
counter begins to count down. Note: When initializing
or changing the alarm value, the ACE bit should be
enabled after writing the alarm counter bytes.
6
_______________________________________________________________________________________
ADDRESS
REGISTER
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
00h
Clock
—
Seconds Counter Byte 0
LSB
01h
Clock
—
Seconds Counter Byte 1
—
02h
Clock
—
Seconds Counter Byte 2
—
03h
Clock
MSB
Seconds Counter Byte 3
—
04h
Alarm
—
Alarm Counter Byte 0
LSB
05h
Alarm
—
Alarm Counter Byte 1
—
06h
Alarm
MSB
Alarm Counter Byte 2
—
07h
Control
EOSC
ACE
0
INTCN
RS2
RS1
AIE
08h
Status
OSF
0
AF
09h
ID
Model Number
0Ah
ID
Serial Number Byte 0
0Bh
ID
Serial Number Byte 1
0Ch
ID
Serial Number Byte 2
0Dh
ID
Serial Number Byte 3
0Eh
ID
Serial Number Byte 4
0Fh
ID
Serial Number Byte 5
10h
ID
CRC
Table 1. DS1372 Address Map
Note: Unless otherwise specified, the states of the registers are undefined when power is first applied. Bits shown as 0 always read
back as 0.
I2C, 32-Bit, Binary Counter Clock with 64-Bit ID
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| DS1374 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output |
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| DS1374C-18- | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output |
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