C8051F537-IT Silicon Laboratories Inc, C8051F537-IT Datasheet - Page 27

• Manufacturer Part Number: C8051F537-IT
• Description: IC 8051 MCU 2K FLASH 20TSSOP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F53xr

Specifications of C8051F537-IT

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.25 V
• Data Converters: A/D 16x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 336-1401

Table 2.2. Global DC Electrical Characteristics
–40 to +125 °C, 25 MHz System Clock unless otherwise specified. Typical values are given at 25 °C
Digital Supply Current—CPU Inactive (Idle Mode, not fetching instructions from Flash)
Idle I
Idle I
Idle I
Digital Supply Current (Suspend Mode)
Digital Supply Current (Stop Mode, shut-
down)
Notes:
1. For more information on V
2. SYSCLK must be at least 32 kHz to enable debugging.
3. Based on device characterization data.
4. Does not include internal oscillator or internal regulator supply current.
5. I
6. Idle I
DD
DD
DD
sensitivity number for that range. When using these numbers to estimate I
the current at 25 MHz minus the difference in current indicated by the frequency sensitivity number. For
example: V
sensitivity number for that range. When using these numbers to estimate I
the current at 25 MHz minus the difference in current indicated by the frequency sensitivity number. For
example: V
DD
3,4
Supply Sensitivity
Frequency Sensitivity
can be estimated for frequencies <= 15 MHz by multiplying the frequency of interest by the frequency
DD
can be estimated for frequencies <= 1 MHz by multiplying the frequency of interest by the frequency
Parameter
DD
DD
= 2.6 V; F= 20 MHz, I
= 2.6 V; F= 5 MHz, Idle I
3
3,6
REGIN
characteristics, see Table 2.5 on page 30.
DD
C8051F52x/F52xA/F53x/F53xA
= 6.3 mA – (25 MHz – 20 MHz) x 0.14 mA/MHz = 5.6 mA.
DD
V
V
F = 25 MHz
F = 1 MHz
T = 25 °C:
V
V
V
V
Oscillator not running,
V
Oscillator not running,
V
Clock = 32 kHz
Clock = 200 kHz
Clock = 1 MHz
Clock = 25 MHz
Clock = 32 kHz
Clock = 200 kHz
Clock = 1 MHz
Clock = 25 MHz
DD
DD
DD
DD
DD
DD
DD
DD
= 3 mA – (25 MHz– 5 MHz) x 120 µA/MHz = 0.6 mA.
Monitor Disabled
Monitor Disabled
= 2.1 V:
= 2.6 V:
= 2.1 V, F < 1 MHz
= 2.1 V, F > 1 MHz
= 2.6 V, F < 1 MHz
= 2.6 V, F > 1 MHz
Rev. 1.3
Conditions
DD
DD
Min
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
> 15 MHz, the estimate should be
> 1 MHz, the estimate should be
0.09
0.13
Typ
120
120
2.2
22
30
50
60
88
88
8
9
3
2
2
Max
6.5
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
µA/MHz
µA/MHz
µA/MHz
µA/MHz
Units
%/V
%/V
mA
mA
mA
mA
µA
µA
µA
µA
µA
µA
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