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參數(shù)資料
| 型號(hào)： | HT1380 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Serial Timekeeper Chip(串行時(shí)鐘芯片) |
| 中文描述： | 串行時(shí)鐘芯片（串行時(shí)鐘芯片） |
| 文件頁(yè)數(shù)： | 7/10頁(yè) |
| 文件大?。?/td> | 110K |
| 代理商： | HT1380 |
The following diagram shows the single and burst mode transfer:
The table illustrates the values suggested for capacities C1, C2
Part No.
Crystal Error
Capacity Value
HT1380/HT1381
10ppm
5pF
10~20ppm
8pF
Operating flowchart
Toinitiateanytransferofdata,RESTistakenhighandan8-bitcommandbyteisfirstloadedintothe
control logic to provide the register address and command information. Following the command
word, the clock/calendar data is serially transferred to or from the corresponding register. The REST
pin must be taken low again after the transfer operation is completed. All data enter on the rising
edge of SCLK and outputs on the falling edge of SCLK. In total, 16 clock pulses are needed for a sin-
gle byte mode and 72 for burst mode. Both input and output data starts with bit 0.
In using the HT1380/HT1381, set first the WP and CH to 0 and wait for about 3 seconds, the oscilla-
tor will generate the clocks for internal use. Then, choose either single mode or burst mode to input
the data. The read or write operating flowcharts are shown on the next page.
HT1380/HT1381
7
September 18, 2000
0
1 +
1
1
+
+
+
+
2 2 1 3 4
1
1
# % 6
3 ) " ! $ #
+
2 2 1 3 4
1 1 3 4
1 1 3 4 +
0
+
+
+
+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT1381 | Serial Timekeeper Chip(串行時(shí)鐘芯片) |
| HT1602L | 40 Dot Matrix LCD Segment Driver |
| HT1602 | 40 Dot Matrix LCD Segment Driver(LCD Duty From 1/8 to 1/64)(40點(diǎn)陣LCD段驅(qū)動(dòng)器(LCD占空率: 1/8 至 1/64)) |
| HT1608L | 2 x 20 Channel LCD Driver(40個(gè)輸出通道的LCD驅(qū)動(dòng)器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT1380A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Serial Timekeeper Chip |
| HT1381 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Serial Timekeeper Chip |
| HT1381-8DIPLF | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Serial Timekeeper Chip |
| HT1381-8SOPLF | 制造商:Holtek Semiconductor Inc 功能描述:IC TIMEKEEPER SERIAL SMD SOP8 制造商:HOLTEK 功能描述:IC, TIMEKEEPER, SERIAL, SMD, SOP8 制造商:Holtek Semiconductor Inc 功能描述:IC, TIMEKEEPER, SERIAL, SMD, SOP8; Date Format:DD:MM:YYYY; Clock Format:HH:MM:SS; Clock IC Type:Timekeeper; Supply Voltage Min:2V; Supply Voltage Max:5.5V; Digital IC Case Style:SOP; No. of Pins:8; Operating Temperature Min:0C; ;RoHS Compliant: Yes |
| HT1381A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Serial Timekeeper Chip |
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