FM31L278_11 Datasheet, PDF (21/26 Pages) Ramtron International Corporation – 3V Integrated Processor Companion with Memory

FM31L278/L276/L274/L272 - 3V I2C Companion
Electrical Specifications
Absolute Maximum Ratings
Symbol
Description
Ratings
V_DD
V_IN
V_BAK
T_STG
T_LEAD
V_ESD
Power Supply Voltage with respect to V_SS
Voltage on any signal pin with respect to V_SS
Backup Supply Voltage
Storage Temperature
Lead Temperature (Soldering, 10 seconds)
Electrostatic Discharge Voltage
- Human Body Model (AEC-Q100-002 Rev. D)
- Charged Device Model (AEC-Q100-011 Rev. B)
- Machine Model (AEC-Q100-003 Rev. E)
-1.0V to +5.0V
-1.0V to +5.0V * and
V_IN ≤ V_DD+1.0V **
-1.0V to +4.5V
-55C to + 125C
260 C
2kV
1.25kV
100V
Package Moisture Sensitivity Level
MSL-2
* PFI input voltage must not exceed 4.5V.
** The “V_IN < V_DD+1.0V” restriction does not apply to the SCL and SDA inputs which do not employ a diode to V_DD.
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 (T_A = -40 C to + 85 C, V_DD = 2.7V to 3.6V unless otherwise specified)
Symbol
Parameter
Min
Typ
Max
V_DD
Main Power Supply
I_DD
V_DD Supply Current
@ SCL = 100 kHz
@ SCL = 400 kHz
@ SCL = 1 MHz
2.7
3.6
500
900
1500
I_SB
Standby Current
120
Units
V
A
A
A
A
Notes
7
1
2
V_BAK
I_BAK
I_BAKTC
V_TP1
V_TP2
V_RST
I_LI
I_LO
V_IL
V_IH
RTC Backup Supply Voltage
@ T_A = +25ºC to +85ºC
@ T_A = -40ºC to +25ºC
RTC Backup Supply Current
@ T_A = +25ºC, V_BAK = 3.0V
@ T_A = +85ºC, V_BAK = 3.0V
@ T_A = +25ºC, V_BAK = 2.0V
@ T_A = +85ºC, V_BAK = 2.0V
Trickle Charge Current with V_BAK=0V
Fast Charge Off (FC = 0)
Fast Charge On (FC = 1)
V_DD Trip Point Voltage, VTP = 0
V_DD Trip Point Voltage, VTP = 1
V_DD for valid /RST @ I_OL = 80 A at V_OL
V_BAK > V_BAK min
V_BAK < V_BAK min
Input Leakage Current
Output Leakage Current
Input Low Voltage
All inputs except those listed below
CNT1-2 battery backed (V_DD < 2.5V)
CNT1-2 (V_DD > 2.5V)
Input High Voltage
All inputs except those listed below
PFI (comparator input)
CNT1-2 battery backed (V_DD < 2.5V)
CNT1-2 V_DD > 2.5V
V
9
1.55
3.75
V
1.9
3.75
V
4
1.4
A
2.1
A
1.15
A
1.75
A
10
50
-
120
A
200
-
2500
A
2.55
2.6
2.70
V
5
2.85
2.9
3.00
V
5
6
0
V
1.6
V
1
A
3
1
A
3
-0.3
0.3 V_DD
V
8
-0.3
0.5
V
-0.3
0.8
V
0.7 V_DD
-
V_BAK – 0.5
0.7 V_DD
V_DD + 0.3
V
3.75
V
V_BAK + 0.3
V
V_DD + 0.3
V
Rev. 2.1
Sept. 2011
Page 21 of 26