FM31T372/374/376/378-G
Electrical Specifications
Absolute Maximum Ratings
Symbol
Description
Ratings
VDD
VIN
Power Supply Voltage with respect to VSS
Voltage on any signal pin with respect to VSS
-1.0V to +7.0V
-1.0V to +7.0V and
VIN ≤ VDD+1.0V *
-1.0V to +4.5V
-55C to + 125C
260 C
VBAK
TSTG
TLEAD
VESD
Backup Supply Voltage
Storage Temperature
Lead Temperature (Soldering, 10 seconds)
Electrostatic Discharge Voltage
2kV
1.25kV
100V
- Human Body Model (AEC-Q100-002 Rev. E)
- Charged Device Model (AEC-Q100-011 Rev. B)
- Machine Model (AEC-Q100-003 Rev. E)
Package Moisture Sensitivity Level
MSL-1
* The “VIN < VDD+1.0V” restriction does not apply to the SCL and SDA inputs which do not employ a diode to VDD
.
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only,
and the functional operation of the device at these or any other conditions above those listed in the operational section of this
specification is not implied. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability.
DC Operating Conditions (TA = -40 C to + 85 C, VDD = 2.7V to 5.5V unless otherwise specified)
Symbol
VDD
IDD
Parameter
Main Power Supply
VDD Supply Current
@ SCL = 100 kHz
@ SCL = 400 kHz
@ SCL = 1 MHz
Min
2.7
Typ
Max
5.5
Units Notes
V
7
1
500
900
1500
A
A
A
ISB
Standby Current
For VDD < 5.5V
For VDD < 3.6V
2
150
120
A
A
V
V
V
VBAK
RTC Backup Supply Voltage
@ TA = +25ºC to +85ºC
@ TA = -40ºC to +25ºC
RTC Backup Supply Current
@ TA = +25ºC, VBAK = 3.0V
@ TA = +85ºC, VBAK = 3.0V
@ TA = +25ºC, VBAK = 2.0V
@ TA = +85ºC, VBAK = 2.0V
9
4
1.55
1.9
3.75
3.75
IBAK
1.4
2.1
1.15
1.75
A
A
A
A
IBAKTC
Trickle Charge Current with VBAK=0V
Fast Charge Off (FC = 0)
Fast Charge On (FC = 1)
10
50
200
120
2500
A
A
V
V
V
VTP0
VTP1
VTP2
VTP3
VRST
VDD Trip Point Voltage, VTP(1:0) = 00b
VDD Trip Point Voltage, VTP(1:0) = 01b
VDD Trip Point Voltage, VTP(1:0) = 10b
VDD Trip Point Voltage, VTP(1:0) = 11b
VDD for valid /RST @ IOL = 80 A at VOL
VBAK > VBAK min
2.55
2.80
3.80
4.25
2.6
2.9
3.9
4.4
2.70
3.00
4.00
4.50
5
5
5
5
6
V
0
1.6
V
V
VBAK < VBAK min
ILI
ILO
VIL
Input Leakage Current
Output Leakage Current
Input Low Voltage
3
3
1
1
A
A
All inputs except those listed below
CNT1-2 battery backed (VDD < 2.4V)
CNT1-2 (VDD > 2.4V)
-0.3
-0.3
-0.3
0.3 VDD
0.5
0.8
V
V
V
8
continued
»
Rev. 1.1
Apr. 2011
Page 21 of 26
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
