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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)： | 5/10頁(yè) |
| 文件大?。?/td> | 110K |
| 代理商： | HT1380 |
HT1380/HT1381
5
September 18, 2000
The following table shows the register address and its data format:
Register
Name
Range
Data
Register Definition
Address
A2~A0
Bit
R/W
Command
Byte
D7
D6
D5
D4
D3
D2
D1
D0
Seconds
00~59
CH
10 SEC
SEC
000
W
R
10000000
10000001
Minutes
00~59
0
10 MIN
MIN
001
W
R
10000010
10000011
Hours
01~12
00~23
12\
24
0
0
AP
10
HR
HR
HOUR
010
W
R
10000100
10000101
Date
01~31
0
0
10 DATE
DATE
011
W
R
10000110
10000111
Month
01~12
0
0
0
10M
MONTH
100
W
R
10001000
10001001
Day
01~07
0
0
0
0
DAY
101
W
R
10001010
10001011
Year
00~99
10 YEAR
YEAR
110
W
R
10001100
10001101
Write
Protect
00~80
WP
ALWAYS ZERO
111
W
R
10001110
10001111
CH:
WP:
Clock Halt bit
CH=0 oscillator enabled
CH=1 oscillator disabled
Write protect bit
WP=0 register data can be written in
WP=1registerdatacannotbewrittenin
Bit 7 of Reg2:
Bit 5 of Reg2:
12/24 mode flag
bit 7=1, 12-hour mode
bit 7=0, 24-hour mode
AM/PM mode defined
AP=1 PM mode
AP=0 AM mode
R/W signal
The LSB of the Command Byte determines
whether the data in the register be read or be
written to.
When it is set as 0 means that a write cycle is
to take place otherwise this chip will be set into
the read mode.
A0~A2
A0toA2oftheCommandByteisusedtospecify
which registers are to be accessed. There are
eight registers used to control the month data,
etc.,andeachoftheseregistershavetobesetas
a write cycle in the initial time.
Burst mode
When the Command Byte is 10111110 (or
10111111), the HT1380/HT1381 is configured in
burst mode. In this mode the eight clock/calen-
dar registers can be written (or read) in series,
starting with bit 0 of register address 0 (see the
timing on the next page).
Test mode
When the Command Byte is set as 1001xxx1,
HT1380/HT1381 is configured in test mode.
The test mode is used by Holtek only for testing
purposes. If used generally, unpredictable con-
ditions may occur.
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| HT1381 | Serial Timekeeper Chip(串行時(shí)鐘芯片) |
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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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