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參數(shù)資料
| 型號(hào)： | M48T35Y-70PC6TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | LED INDICATOR, PROM RED 24VDC |
| 中文描述： | 256千位的32KB的SRAM x8計(jì)時(shí)器 |
| 文件頁數(shù)： | 12/19頁 |
| 文件大?。?/td> | 148K |
| 代理商： | M48T35Y-70PC6TR |
M48T35AY, M48T35AV
12/19
Table 11. Register Map
Address
Data
Function/Range
BCD Format
D7
D6
D5
D4
D3
D2
D1
D0
7FFFh
10 Years
Year
Year
00-99
7FFEh
0
0
0
10 M.
Month
Month
01-12
7FFDh
0
0
10 Date
Date
Date
01-31
7FFCh
0
FT
CEB
CB
0
Day
Century/Day
00-01/01-07
7FFBh
0
0
10 Hours
Hours
Hour
00-23
7FFAh
0
10 Minutes
Minutes
Minutes
00-59
7FF9h
ST
10 Seconds
Seconds
Seconds
00-59
7FF8h
W
R
S
Calibration
Control
Keys:
S = SIGN Bit
FT = FREQUENCY TEST Bit (Must be set to ‘0’ upon power for normal operation)
R = READ Bit
W = WRITE Bit
ST = STOP Bit
0 = Must be set to ‘0’
CEB = Century Enable Bit
CB = Century Bit
Note: When CEB is set to ‘1’, CB will toggle from ‘0’ to ‘1’ or from ‘1’ to ‘0’ at the turn of the century (dependent upon the initial value set).
When CEB is set to ‘0’, CB will not toggle.
The WRITE Bit does not need to be set to write to CEB and CB.
Figure 10. Clock Calibration
AI00594B
NORMAL
POSITIVE
CALIBRATION
NEGATIVE
CALIBRATION
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| M48T35Y-70PM1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V, 256 Kbit (32 Kb x 8) TIMEKEEPER SRAM |
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