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參數(shù)資料
| 型號(hào)： | M41ST87YMX6TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| 封裝： | 0.300 INCH, ROHS COMPLIANT, PLASTIC, SOX-28 |
| 文件頁數(shù)： | 37/48頁 |
| 文件大?。?/td> | 457K |
| 代理商： | M41ST87YMX6TR |
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DC and AC parameters
M41ST87Y, M41ST87W
Table 17.
DC characteristics
Sym
Parameter
Test condition(1)
1.
Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 4.5 to 5.5 V or 2.7 to 3.6 V (except where noted).
M41ST87Y
M41ST87W
Unit
Min
Typ
Max
Min
Typ
Max
IBAT
(2)
2.
Battery current
OSC ON
TA = 25°C, VCC = 0 V,
VBAT = 3 V
500
700
500
700
nA
Battery current
OSC OFF
50
nA
ICC1
Supply current
f = 400 kHz
1.4
0.75
mA
ICC2
Supply current
(standby)
SCL, SDA = VCC – 0.3 V
1
0.50
mA
ILI
(3)
3.
RSTIN1 and RSTIN2 internally pulled-up to VCC through 100 KΩ resistor. WDI internally pulled-down to VSS through
100 K
Ω resistor.
Input leakage
current
0V
≤ VIN ≤ VCC
±1
A
Input leakage
current (PFI)
–25
2
25
–25
2
25
nA
ILO
(4)
Output leakage
current
0V
≤ VIN ≤ VCC
±1
A
IOUT1
(5) VOUT current
(active)
VOUT1 > VCC – 0.3 V
175
100
mA
IOUT2
VOUT current
(battery backup)
VOUT2 > VBAT – 0.3 V
100
A
VIH
Input high
voltage
0.7V
CC
VCC + 0.3 0.7VCC
VCC + 0.3
V
VIL
Input low voltage
–0.3
0.3VCC
–0.3
0.3VCC
V
VBAT
Battery voltage
2.5
3.0
3.5(6)
2.5
3.0
3.5(6)
V
VOH
(7)
Output high
voltage
IOH = –1.0 mA
V
Pull-up supply
voltage
(open drain)
IRQ/OUT, RST, F32k
5.5
3.6
V
VOHB
(8) VOH (battery
backup)
IOUT2 = –1.0 A
(9)
2.9
V
VOL
Output low
voltage
IOL = 3.0 mA
0.4
V
Output low
voltage
(open drain)(10)
IOL = 10 mA
0.4
V
VPFD
Power fail
deselect
THS bit = 0
4.20
4.35
4.50
2.55
2.62
2.70
V
THS bit = 1
4.50
4.60
4.75
2.80
2.88
3.00
V
VPFI1
PFI input
threshold
VCC = 5 V(Y)
VCC = 3 V(W)
1.225
1.250
1.275
1.225
1.250
1.275
V
PFI hysteresis
PFI rising
20
70
20
70
mV
VPFI2
PFI input
threshold
VCC = 5 V(Y)
VCC = 3 V(W)
1.225
1.250
1.275
1.225
1.250
1.275
V
PFI hysteresis
PFI rising
20
70
20
70
mV
VSO
Battery backup
switchover
2.5
V
RSW
Switch
resistance on
tamper pin
500
W
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