C8051F50x-F51x
Table 5.2. Global Electrical Characteristics (Continued)
–40 to +125 °C, 24 MHz system clock unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
Digital Supply Current—CPU Inactive (Idle Mode, not fetching instructions from Flash)
4
V
V
V
V
V
V
V
V
= 2.1 V, F = 200 kHz
= 2.1 V, F = 1.5 MHz
= 2.1 V, F = 25 MHz
= 2.1 V, F = 50 MHz
= 2.6 V, F = 200 kHz
= 2.6 V, F = 1.5 MHz
= 2.6 V, F = 25 MHz
= 2.6 V, F = 50 MHz
—
—
—
—
—
—
—
—
60
460
7.2
14
—
—
µA
µA
DD
DD
DD
DD
DD
DD
DD
DD
I
DD
DD
8.0
16
—
mA
mA
µA
4
75
I
600
9.3
19
—
µA
15
25
mA
mA
4
F = 25 MHz
F = 1 MHz
—
—
—
57
56
—
—
—
I
I
Supply Sensitivity
DD
%/V
4.6
V
V
V
V
= 2.1V, F < 12.5 MHz, T = 25 °C
= 2.1V, F > 12.5 MHz, T = 25 °C
= 2.6V, F < 12.5 MHz, T = 25 °C
= 2.6V, F > 12.5 MHz, T = 25 °C
0.29
DD
DD
DD
DD
Frequency Sensitivity
DD
—
—
—
0.29
0.38
0.38
—
—
—
mA/MHz
4
Oscillator not running,
Monitor Disabled
Digital Supply Current
V
DD
(Stop or Suspend Mode)
Temp = 25 °C
Temp = 60 °C
Temp= 125 °C
—
—
—
2
—
—
—
µA
10
120
Notes:
1. Given in Table 5.4 on page 46.
2. VIO should not be lower than the VDD voltage.
3. SYSCLK must be at least 32 kHz to enable debugging.
4. Based on device characterization data; Not production tested. Does not include oscillator supply current.
5. IDD can be estimated for frequencies < 12.5 MHz by simply multiplying the frequency of interest by the
frequency sensitivity number for that range. When using these numbers to estimate IDD for >12.5 MHz, the
estimate should be the current at 50 MHz minus the difference in current indicated by the frequency
sensitivity number. For example: VDD = 2.6 V; F = 20 MHz, IDD = 26 mA - (50 MHz -
20 MHz) * 0.48 mA/MHz = 11.6 mA.
6. Idle IDD can be estimated for frequencies < 1 MHz by simply multiplying the frequency of interest by the
frequency sensitivity number for that range. When using these numbers to estimate Idle IDD for >1 MHz, the
estimate should be the current at 50 MHz minus the difference in current indicated by the frequency
sensitivity number.
For example: VDD = 2.6 V; F = 5 MHz, Idle IDD = 21 mA – (50 MHz – 5 MHz) x 0.41 mA/MHz = 2.6 mA.
Rev. 1.1
43
SILICON [ SILICON ]
