参数资料
型号: M41ST85YMH6
厂商: STMICROELECTRONICS
元件分类: 时钟/数据恢复及定时提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO28
封装: 0.330 INCH, SNAPHAT, PLASTIC, SOH-28
文件页数: 15/34页
文件大小: 532K
代理商: M41ST85YMH6
M41ST85Y, M41ST85W
22/34
trec Bit
Bit D7 of Clock Register 04h contains the trec Bit
(TR). trec refers to the automatic continuation of
the deselect time after VCC reaches VPFD. This al-
lows for a voltage settling time before WRITEs
may again be performed to the device after a pow-
er-down condition. The trec Bit will allow the user to
set the length of this deselect time as defined by
Initial Power-on Defaults
Upon initial application of power to the device, the
following register bits are set to a '0' state: Watch-
dog Register, FT, AFE, ABE, SQWE, and TR. The
following bits are set to a '1' state: ST, OUT, and
Table 6. trec Definitions
Note: 1. Default Setting
Table 7. Default Values
Note: 1. WDS, BMB0-BMB4, RB0, RB1.
2. State of other control bits undefined.
3. UC = Unchanged
trec Bit (TR)
STOP Bit (ST)
trec Time
Units
Min
Max
0
96
98
ms
01
40
200(1)
ms
1
X
50
2000
s
Condition
TR
ST
HT
Out
FT
AFE
ABE
SQWE
WATCHDOG
Register(1)
Initial Power-up(2)
01
1100
0
Subsequent Power-up (with
battery back-up)(3)
UC
1
UC
0
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M41ST85YMX6TR 1 TIMER(S), REAL TIME CLOCK, PDSO28
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