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参数资料
| 型号： | M41ST84W-85MH6TR |
| 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： | 17/32页 |
| 文件大小： | 168K |
| 代理商： | M41ST84W-85MH6TR |
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M41ST84Y, M41ST84W
24/32
Table 10. DC Characteristics
Note: 1. Outputs deselected.
2. RSTIN internally pulled-up to VCC through 100K resistor. WDI internally pulled-down to VSS through 100K resistor.
3. For IRQ/FT/OU T, RST pins (Open Drain).
Table 11. Crystal Electrical Characteristics (Externally Supplied)
Note: 1. Load capacitors are integrated within the M41ST84Y/W. Circuit board layout considerations for the 32.768 kHz crystal of minimum
trace lengths and isolation from RF generating signals should be taken into account.
STMicroelectronics recommends the KDS DT-38 Tuning Fork Type (thru-hole) or DMX-26 (SMD) quartz crystal for industrial tem-
perature operations.
KDS can be contacted at kouhou@kdsj.co.jp or http://www.kdsj.co.jp for further information on this crystal type.
Symbol
Parameter
Test Condition
Min
Typ
Max
Unit
IBAT
Battery Current OSC ON
TA =25°C, VCC =0V, VBAT
=3V
400
500
nA
Battery Current OSC OFF
50
nA
ICC1
Supply Current
M41ST84Y
f = 400kHz
1.4
mA
M41ST84W
750
A
ICC2
Supply Current
(Standby)
M41ST84Y
SCL, SDA = VCC – 0.3V
1mA
M41ST84W
500
A
ILI
(1,2)
Input Leakage Current
0V
≤ VIN ≤ VCC
±1
A
Input Leakage Current (PFI)
0V
≤ VIN ≤ VCC
–25
2
25
nA
ILO
(1)
Output Leakage Current
0V
≤ VOUT ≤ VCC
±1
A
VIH
Input High Voltage
0.7VCC
VCC + 0.3
V
VIL
Input Low Voltage
–0.3
0.3VCC
V
VBAT
Battery Voltage
3.0
V
VOH
Output High Voltage
IOH = –1.0mA
2.4
V
VOL
Output Low Voltage
IOL = 3.0mA
0.4
V
Output Low Voltage (Open Drain)(3)
IOL = 10mA
0.4
V
VPFD
Power Fail Deselect
M41ST84Y
4.30
4.40
4.50
V
M41ST84W
2.70
2.75
2.80
V
VPFI
PFI Input Threshold
1.225
1.250
1.275
V
VSO
Battery Back-up Switchover
2.5
V
Symbol
Parameter
Typ
Min
Max
Unit
f0
Resonant Frequency
32.768
kHz
RS
Series Resistance
60
k
CL
Load Capacitance
12.5
pF
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