Datasheet

© 2007 Microchip Technology Inc. DS21618B-page 13
MCP2120
4.1 DC Characteristics
DC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature –40°C ≤ T
A ≤ +85°C (industrial)
Param.
No.
Sym Characteristic Min Typ
(1)
Max Units Conditions
D001 V
DD Supply Voltage 2.5 — 5.5 V See Figure 4-1
D002 V
DR RAM Data Retention
Voltage
(2)
2.5 — — V Device Oscillator/Clock stopped
D003 V
POR VDD Start Voltage to
ensure Power-on
Reset
—VSS —V
D004 SV
DD VDD Rise Rate to
ensure Power-on
Reset
0.05 — — V/ms
D010 I
DD Supply Current
(3)
—
—
—
—
—
—
0.8
0.6
0.4
3
4
4.5
1.4
1.0
0.8
7
12
16
mA
mA
mA
mA
mA
mA
F
OSC = 4 MHz, VDD = 5.5V
F
OSC = 4 MHz, VDD = 3.0V
FOSC = 4 MHz, VDD = 2.5V
FOSC = 10 MHz, VDD = 3.0V
F
OSC = 20 MHz, VDD = 4.5V
FOSC = 20 MHz, VDD = 5.5V
D020 I
PD Device Disabled
Current
(3, 4)
—
—
—
—
0.25
0.25
0.4
3
4
3
5.5
8
µA
µA
µA
µA
VDD = 3.0V, 0°C ≤ TA ≤ +70°C
VDD = 2.5V, 0°C ≤ TA ≤ +70°C
V
DD = 4.5V, 0°C ≤ TA ≤ +70°C
VDD = 5.5V, –40°C ≤ TA ≤ +85°C
Note 1: Data in the Typical (“Typ”) column is based on characterization results at +25°C. This data is for design
guidance only and is not tested.
2: This is the limit to which V
DD can be lowered without losing RAM data.
3: The supply current is mainly a function of the operating voltage and frequency. Pin loading, pin rate, and
temperature have an impact on the current consumption.
a) The test conditions for all I
DD measurements are made when device is enabled (EN pin is high):
OSC1 = external square wave, from rail-to-rail; all input pins pulled to VSS, RXIR = VDD,
RESET =VDD;
b) When device is disabled (EN pin is low), the conditions for current measurements are the same.
4: When the device is disabled (EN pin is low), current is measured with all input pins tied to V
DD or VSS and
the output pins driving a high or low level into infinite impedance.