C8051F321-GMR Datasheet, PDF (29/250 Pages) Silicon Laboratories – Full Speed USB, 16 k ISP FLASH MCU Family

C8051F320/1
Table 3.1. Global Electrical Characteristics (Continued)
–40 to +85 °C, 25 MHz system clock unless otherwise noted.
Parameter
Conditions
Min Typ Max Units
Idle IDD Supply Sensitivity⁴
F = 24 MHz
F = 6 MHz
—
0.47 —
%/V
—
0.50 —
%/V
Idle IDD Frequency 
Sensitivity ^4,6
Digital Supply Current 
(Stop Mode)
V_DD = 3.0 V, F < 1 MHz, T = 25 °C —
V_DD = 3.0 V, F > 1 MHz, T = 25 °C —
V_DD = 3.3 V, F < 1 MHz, T = 25 °C —
V_DD = 3.3 V, F > 1 MHz, T = 25 °C —
Oscillator not running,
—
V_DD Monitor disabled
0.25
0.17
0.29
0.20
<0.1
— mA/MHz
— mA/MHz
— mA/MHz
— mA/MHz
—
µA
Notes:
1. Given in Table 10.1, “Reset Electrical Characteristics,” on page 105.
2. USB requires a minimum supply voltage of 3.0 V.
3. SYSCLK must be at least 32 kHz to enable debugging.
4. Based on device characterization data; Not production tested.
5. IDD can be estimated for frequencies < 15 MHz by simply multiplying the frequency of interest by the
frequency sensitivity number for that range. When using these numbers to estimate IDD for >15 MHz, the
estimate should be the current at 24 MHz minus the difference in current indicated by the frequency sensitivity
number. For example: VDD = 3.0 V; F = 20 MHz, IDD = 9.0 mA – (24 MHz –
20 MHz) x 0.26 mA/MHz = 7.96 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 24 MHz minus the difference in current indicated by the frequency sensitivity
number. For example: VDD = 3.0 V; F = 5 MHz, Idle IDD = 4.6 mA – (24 MHz –
5 MHz) x 0.17 mA/MHz = 1.37 mA.
Table 3.2. Index to Electrical Characteristics Tables
Peripheral Electrical Characteristics
ADC0 Electrical Characteristics
Voltage Reference Electrical Characteristics
Comparator Electrical Characteristics
Voltage Regulator Electrical Characteristics
Reset Electrical Characteristics
Flash Electrical Characteristics
Internal Oscillator Electrical Characteristics
Port I/O DC Electrical Characteristics
Page #
54
56
66
68
105
107
125
138
Rev. 1.4
29