M4T32-BR12SH STMICROELECTRONICS [STMicroelectronics], M4T32-BR12SH Datasheet - Page 25

• Manufacturer Part Number: M4T32-BR12SH
• Description: 5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Table 11. DC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
I
V
OUT1
I
I
I
V
Sym
BAT
V
OHB
I
I
I
OUT2
V
LO
V
V
V
V
LI
CC1
CC2
V
PFD
BAT
OH
PFI
OL
SO
(3)
IH
IL
(4)
(2)
2. Measured with V
3. RSTIN1 and RSTIN2 internally pulled-up to V
4. Outputs Deselected.
5. External SRAM must match RTC SUPERVISOR chip V
6. For PFO and SQW pins (CMOS).
7. Conditioned output (E
8. For IRQ/FT/OUT, RST pins (Open Drain): if pulled-up to supply other than V
9. For rechargeable back-up, V
(7)
(5)
duce battery life.
V
CC
Battery Current OSC
ON
Battery Current OSC
OFF
Supply Current
Supply Current
(Standby)
Input Leakage Current
Input Leakage Current
(PFI)
Output Leakage
Current
V
V
Back-up)
Input High Voltage
Input Low Voltage
Battery Voltage
Output High Voltage
Pull-up Supply Voltage
(Open Drain)
V
Output Low Voltage
Output Low Voltage
(Open Drain)
Power Fail Deselect
PFI Input Threshold
PFI Hysteresis
Battery Back-up
Switchover
OUT
OUT
OH
= 0V (during battery back-up mode).
(Battery Back-up)
Parameter
Current (Active)
Current (Battery
OUT
(8)
and E
CON
) can only sustain CMOS leakage current in the battery back-up mode. Higher leakage currents will re-
(6)
CON
BAT
open.
I
(max) may be considered V
Condition
IRQ/FT/OUT
OH
V
V
SCL, SDA =
I
V
V
V
I
f = 400kHz
OL
T
V
0V
0V
OL
PFI Rising
V
CC
CC
BAT
CC
CC
A
V
V
I
CC
BAT
–1.0µA
OUT2
= –1.0mA
OUT1
OUT2
RST,
= 3.0mA
Test
= 25°C,
V
V
= 10mA
= 5V(Y)
= 3V(V)
– 0.3V
CC
CC
– 0.3V
– 0.3V
= 0V,
V
V
= 3V
IN
IN
=
>
>
A
CC
(1)
= –40 to 85°C; V
through 100K resistor. WDI internally pulled-down to V
0.7V
1.225
–0.3
4.20
Min
–25
2.5
2.4
2.5
CC
CC
specification.
CC
M41ST85Y
CC
.
1.250
4.40
Typ
400
3.0
2.9
2.5
50
20
= 4.5 to 5.5V or 2.7 to 3.6V (except where noted).
2
V
0.3V
CC
CC
1.275
3.5
Max
4.50
500
175
100
1.4
5.5
3.5
0.4
0.4
±1
±1
, this supply must be equal to, or less than 3.0V when
25
70
1
+ 0.3
(9)
CC
0.7V
1.225
–0.3
2.55
Min
–25
2.5
2.4
2.5
M41ST85Y, M41ST85W
CC
M41ST85W
1.250
2.60
Typ
400
3.0
2.9
2.5
50
20
2
SS
through 100K resistor.
V
0.3V
CC
1.275
3.5
Max
0.75
0.50
2.70
500
100
100
3.6
3.5
0.4
0.4
±1
25
±1
70
+ 0.3
(9)
CC
Unit
25/34
mA
mA
mA
mV
nA
nA
µA
nA
µA
µA
V
V
V
V
V
V
V
V
V
V
V