Datasheet
2010 Microchip Technology Inc. Preliminary DS22266A-page 3
MCP7941X
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
(†)
VCC.............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. V
SS ..........................................................................................................-0.6V to VCC +1.0V
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature with power applied................................................................................................-40°C to +125°C
ESD protection on all pins 4 kV
TABLE 1-1: DC CHARACTERISTICS
† NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those or any other conditions above those
indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for
extended periods may affect device reliability.
DC CHARACTERISTICS
Electrical Characteristics:
Industrial (I): V
CC = +1.8V to 5.5V TA = -40°C to +85°C
Param.
No.
Sym. Characteristic Min. Typ. Max. Units Conditions
— SCL, SDA pins — — — —
D1 V
IH High-level input voltage 0.7 VCC —V—
D2 VIL Low-level input voltage — 0.3 VCC
0.2 VCC
VVCC = 2.5V to 5.5V
D3 V
HYS Hysteresis of Schmitt
Trigger inputs
(SDA, SCL pins)
0.05
V
CC
—V(Note 1)
D4 VOL Low-level output voltage
(MFP, SDA)
—0.40VIOL = 3.0 ma @ VCC = 4.5V
I
OL = 2.1 ma @ VCC = 2.5V
D5 ILI Input leakage current — ±1 AVIN = VSS or VCC
D6 ILO Output leakage current — ±1 AVOUT = VSS or VCC
D7 CIN,
C
OUT
Pin capacitance
(SDA, SCL and MFP)
—10pFVCC = 5.0V (Note 1)
T
A = 25°C, f = 400 kHz
D8 I
CC Read Operating current
EEPROM
— 400 AVCC = 5.5V, SCL = 400 kHz
I
CC Write — 3 mA VCC = 5.5V
D9 I
CC Read Operating current
SRAM
— 300 AVCC = 5.5V, SCL = 400 kHz
I
CC Write — 400 AVCC = 5.5V, SCL = 400 kHz
D10 ICCS Standby current (Note 2) —5AVCC = 5.5V, SCL = SDA = VCC
D11 IBAT VBAT Standby Current
(Note 2)
—700— nAVBAT = 1.8V @ 25°C
D12 VTRIP V
BAT Change Over 1.3 1.7 V 1.5V typical at TAMB = 25°C
D13 VCCFT V
CC Fall Time (Note 1) 300 sFrom VTRIP (max) to VTRIP (min)
D14 VCCRT V
CC Rise Time (Note 1) 0 sFrom VTRIP (min) to VTRIP (max)
D15 VBAT VBAT Voltage Range
(Note 1)
1.3 5.5 V —
Note 1: This parameter is periodically sampled and not 100% tested.
2: Standby with oscillator running