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M48T212Y датащи(PDF) 25 Page - STMicroelectronics

номер детали M48T212Y
подробное описание детали  5V/3.3V TIMEKEEPER CONTROLLER Supervisor
PDF  32 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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M48T212Y датащи(HTML) 25 Page - STMicroelectronics

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M48T212Y, M48T212V
Table 14. DC Characteristics
Note: 1. Valid for Ambient Operating Temperature: TA = 0 to 70°C or –40 to 85°C; VCC = 4.5 to 5.5V or 3.0 to 3.6V (except where noted).
2. RSTIN1 and RSTIN2 internally pulled-up to VCC through 100KΩ resistor. WDI internally pulled-down to VSS through 100KΩ resistor.
3. Outputs deselected.
4. IBAT (OSC ON) = Industrial Temperature Range - Grade 6 device.
5. For IRQ/FT & RST pins (Open Drain).
6. Conditioned outputs (E1CON - E2CON) can only sustain CMOS leakage currents in the battery back-up mode. Higher leakage cur-
rents will reduce battery life.
7. External SRAM must match TIMEKEEPER® SUPERVISOR chip VCC specification.
Sym
Parameter
Test Condition(1)
M48T212Y
M48T212V
Unit
–70
–85
Min
Typ
Max
Min
Typ
Max
ILI
(2)
Input Leakage Current
0V
≤ VIN ≤ VCC
±1
±1
µA
ILO
(3)
Output Leakage Current
0V
≤ VOUT ≤ VCC
±1
±1
µA
ICC
Supply Current
Outputs open
8
15
4
10
mA
ICC1
Supply Current (Standby)
TTL
E = VIH
53
mA
ICC2
Supply Current (Standby)
CMOS
E = VCC –0.2
32
mA
IBAT
Battery Current OSC ON
VCC = 0V
575
800
575
800
nA
Battery Current OSC
ON(4)
950
1250
950
1250
nA
Battery Current OSC
OFF
100
100
nA
VIL
Input Low Voltage
–0.3
0.8
–0.3
0.8
V
VIH
Input High Voltage
2.2
VCC +
0.3
2.0
VCC +
0.3
V
VOL
Output Low Voltage
IOL = 2.1mA
0.4
0.4
V
Output Low Voltage
(open drain) (5)
IOL = 10mA
0.4
0.4
V
VOH
Output High Voltage
IOH = –1.0mA
2.4
2.4
V
VOHB
(6)
VOH Battery Back-up
IOUT2 = –1.0µA
2.0
3.6
2.0
3.6
V
IOUT1
(7)
VOUT Current (Active)
VOUT1 > VCC –0.3
100
70
mA
IOUT2
VOUT Current (Battery
Back-up)
VOUT2 > VBAT –0.3
100
100
µA
VPFD
Power-fail Deselect
Voltage
4.2
4.35
4.5
2.7
2.9
3.0
V
VSO
Battery Back-up
Switchover Voltage
3.0
VPFD –
100mV
V
VBAT
Battery Voltage
3.0
3.0
V



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