C8051F50x-F51x
5.2. Electrical Characteristics
Table 5.2. Global Electrical Characteristics
–40 to +125 °C, 24 MHz system clock unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
Supply Input Voltage (V
)
1.8
—
5.25
V
REGIN
1
1
Digital Supply Voltage (V
)
System Clock < 25 MHz
System Clock > 25 MHz
—
—
2.75
2.75
2.75
2.75
DD
V
RST
V
V
2
Analog Supply Voltage (VDDA) System Clock < 25 MHz
V
RST
2
(Must be connected to V
)
System Clock > 25 MHz
Normal Operation
DD
Digital Supply RAM Data
Retention Voltage
1.5
2
Port I/O Supply Voltage (V )
—
—
—
—
—
5.25
50
V
MHz
ns
IO
1.8
0
3
SYSCLK (System Clock)
T
T
(SYSCLK High Time)
(SYSCLK Low Time)
9
9
—
SYSH
SYSL
—
ns
Specified Operating
Temperature Range
–40
+125
°C
Digital Supply Current—CPU Active (Normal Mode, fetching instructions from Flash)
4
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
—
—
—
—
95
700
10
—
—
11
21
µA
µA
I
DD
DD
DD
DD
DD
mA
mA
19
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
41
SILICON [ SILICON ]
