参数资料
型号: M41ST85YMX6TR
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: 0.300 INCH, PLASTIC, SOIC-28
文件页数: 18/34页
文件大小: 532K
代理商: M41ST85YMX6TR
25/34
M41ST85Y, M41ST85W
Table 11. DC Characteristics
Note: 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. Measured with VOUT and ECON open.
3. RSTIN1 and RSTIN2 internally pulled-up to VCC through 100K resistor. WDI internally pulled-down to VSS through 100K resistor.
4. Outputs Deselected.
5. External SRAM must match RTC SUPERVISOR chip VCC specification.
6. For PFO and SQW pins (CMOS).
7. Conditioned output (ECON) can only sustain CMOS leakage current in the battery back-up mode. Higher leakage currents will re-
duce battery life.
8. For IRQ/FT/OUT, RST pins (Open Drain): if pulled-up to supply other than VCC, this supply must be equal to, or less than 3.0V when
VCC = 0V (during battery back-up mode).
9. For rechargeable back-up, VBAT (max) may be considered VCC.
Sym
Parameter
Test
Condition(1)
M41ST85Y
M41ST85W
Unit
Min
Typ
Max
Min
Typ
Max
IBAT
(2)
Battery Current OSC
ON
TA = 25°C,
VCC = 0V,
VBAT = 3V
400
500
400
500
nA
Battery Current OSC
OFF
50
nA
ICC1
Supply Current
f = 400kHz
1.4
0.75
mA
ICC2
Supply Current
(Standby)
SCL, SDA =
VCC – 0.3V
10.50
mA
ILI
(3)
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 – 0.3V
175
100
mA
IOUT2
VOUT Current (Battery
Back-up)
VOUT2 >
VBAT – 0.3V
100
A
VIH
Input High Voltage
0.7VCC
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(9)
2.5
3.0
3.5(9)
V
VOH
Output High Voltage(6)
IOH = –1.0mA
2.4
V
Pull-up Supply Voltage
(Open Drain)
RST,
IRQ/FT/OUT
5.5
3.6
V
VOHB
(7)
VOH (Battery Back-up)
IOUT2 =
–1.0A
2.5
2.9
3.5
2.5
2.9
3.5
V
VOL
Output Low Voltage
IOL = 3.0mA
0.4
V
Output Low Voltage
(Open Drain)(8)
IOL = 10mA
0.4
V
VPFD
Power Fail Deselect
4.20
4.40
4.50
2.55
2.60
2.70
V
VPFI
PFI Input Threshold
VCC = 5V(Y)
VCC = 3V(V)
1.225
1.250
1.275
1.225
1.250
1.275
V
PFI Hysteresis
PFI Rising
20
70
20
70
mV
VSO
Battery Back-up
Switchover
2.5
V
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