C8051F581-IMR Silicon Labs, C8051F581-IMR Datasheet - Page 43

• Manufacturer Part Number: C8051F581-IMR
• Description: 8-bit Microcontrollers - MCU 50MIPS 128kB 8kB SPI
• Manufacturer: Silicon Labs

Specifications of C8051F581-IMR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

5.2. Electrical Characteristics
Table 5.2. Global Electrical Characteristics
–40 to +125 °C, 24 MHz system clock unless otherwise specified.
Supply Input Voltage (V
Digital Supply Voltage (V
Analog Supply Voltage (VDDA)
(Must be connected to V
Digital Supply RAM Data
Retention Voltage
Port I/O Supply Voltage (V
SYSCLK (System Clock)
T
T
Specified Operating
Temperature Range
Digital Supply Current—CPU Active (Normal Mode, fetching instructions from Flash)
I
Notes:
DD
SYSH
SYSL
4
1. Given in Table 5.4 on page 48.
2. V
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
6. Idle IDD can be estimated for frequencies
frequency sensitivity number for that range. When using these numbers to estimate I
estimate should be the current at 50 MHz minus the difference in current indicated by the frequency
sensitivity number. For example: V
frequency sensitivity number for that range. When using these numbers to estimate Idle I
estimate should be the current at 50 MHz minus the difference in current indicated by the frequency
sensitivity number. 
For example: V
(SYSCLK Low Time)
(SYSCLK High Time)
20 MHz) * 0.46 mA/MHz = 7.2 mA.
IO
Parameter
should not be lower than the V
DD
= 2.6 V; F = 5 MHz, Idle I
REGIN
DD
DD
3
IO
)
)
)
)
System Clock < 25 MHz
System Clock > 25 MHz
System Clock < 25 MHz
System Clock > 25 MHz
Normal Operation
V
V
V
V
DD
DD
DD
DD
= 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
DD
DD
voltage.
= 2.6 V; F = 20 MHz, I
<
15 MHz by simply multiplying the frequency of interest by the
<
Conditions
DD
1 MHz by simply multiplying the frequency of interest by the
Rev. 1.2
= 19 mA – (50 MHz – 5 MHz) x 0.38 mA/MHz = 1.9 mA.
DD
= 21 mA - (50 MHz -
C8051F58x/F59x
V
V
1.8
Min
–40
1.8
RST
RST
—
—
—
—
—
2
2
0
9
9
2
1
1
Typ
150
650
1.5
8.5
15
—
—
—
—
—
—
—
—
DD
for >15 MHz, the
DD
+125
Max
5.25
2.75
2.75
2.75
2.75
5.25
50
11
21
—
—
—
—
—
for >1 MHz, the
Units
MHz
mA
mA
µA
µA
ns
ns
°C
V
V
V
V
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