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M41T315Y Datasheet(PDF) 20 Page - STMicroelectronics

Part # M41T315Y
Description  Serial access phantom RTC supervisor
PDF  30 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T315Y Datasheet(HTML) 20 Page - STMicroelectronics

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DC and AC parameters
M41T315Y, M41T315V, M41T315W
20/30
Table 9.
DC characteristics
Sym
Parameter
Test condition(1)
M41T315Y
M41T315V/W
Unit
–65
–85
Min
Typ
Max
Min
Typ
Max
IIL
(2)
Input leakage
current
0V
≤ VIN ≤ VCC
±1
±1µA
IOL
Output leakage
current
0V
≤ VOUT ≤ VCC
±1
±1µA
ICC1
(3)
Supply current
10
6
mA
ICCO1
(4) VCC power supply
current
VCC0 = VCC1 – 0.3
150
100
mA
ICC2
(3)
Supply current
(TTL standby)
CEI = VIH
32
mA
ICC3
(3)
VCC power supply
current
CEI = VCC1 – 0.2
1
1
mA
VIL
(5)
Input low voltage
–0.3
0.8
–0.3
0.6
V
VIH
(5)
Input high voltage
2.2
VCC1 + 0.3
2.0
VCC +
0.3
V
VOL
(6)
Output low voltage
IOL = 4.0 mA
0.4
0.4
V
VOH
(6)
Output high
voltage
IOH = –1.0 mA
2.4
2.4
V
VPFD
Power fail
deselect
4.25
4.50
2.80 (V)
2.60 (W)
2.97 (V)
2.70 (W)
V
VSO
Battery back-up
switchover
VBAT
2.5
V
VBAT
Battery voltage
2.5
3.7
2.5
3.7
V
VCEO
CEO output
voltage
VCC1 – 0.2
or
VBAT – 0.2
VCC1 – 0.2
or
VBAT – 0.2
V
IBAT
(3)
Battery current
VBAT = 3.0V
TA = 25°C
VCC = 0V
0.5
0.5
µA
ICCO2
(7) Battery backup
current
VCC0 = VBAT – 0.2V
100
100
µA
1.
Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 4.5 to 5.5V or 2.7 to 3.6V (except where noted).
2.
Applies to all input pins except RST, which is pulled internally to VCCI.
3.
Measured without RAM connected.
4.
ICCO1 is the maximum average load current the device can supply to external memory.
5.
Voltages are referenced to Ground.
6.
Measured with load shown in Figure 10 on page 19.
7.
ICCO2 is the maximum average load current that the device can supply to memory in the battery backup mode.



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