SIM3U146-B-GM Silicon Labs, SIM3U146-B-GM Datasheet - Page 18

• Manufacturer Part Number: SIM3U146-B-GM
• Description: ARM Microcontrollers - MCU ARM Cortex-M3 USB 64KB QFN64
• Manufacturer: Silicon Labs

Specifications of SIM3U146-B-GM

• Rohs: yes
• Core: ARM Cortex M3
• Processor Series: SIM3U1xx
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 80 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 32 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFN-64
• Mounting Style: SMD/SMT
• Interface Type: 2 x I2C, I2S, 3 x SPI, 2 x USART, 2 x UART
• Number Of Programmable I/os: 65
• Number Of Timers: 2 x 32 bit
• Supply Voltage - Max: 3.6 V

Table 3.8. Internal Oscillators (Continued)
SiM3U1xx
18
Lock Time
Low Power Oscillator (LPOSC0)
Oscillator Frequency
Divided Oscillator Frequency
Power Supply Sensitivity
Temperature Sensitivity
Low Frequency Oscillator (LFOSC0)
Oscillator Frequency
Power Supply Sensitivity
Temperature Sensitivity
RTC0 Oscillator (RTC0OSC)
Missing Clock Detector Trigger
Frequency
RTC Robust Duty Cycle Range
*Note: PLL0OSC in free-running oscillator mode
Parameter
PSS
PSS
t
TS
TS
PLL0LOCK
Symbol
f
f
RTCMCD
f
LPOSCD
DC
f
LPOSC
LFOSC
LPOSC
LFOSC
LPOSC
LFOSC
RTC
Full Temperature and
Full Temperature and
Full Temperature and
Rev. 1.0
f
f
f
PLL0OSC
PLL0OSC
PLL0OSC
Test Condition
f
f
f
M=0, N=2440,
Supply Range
Supply Range
Supply Range
REF
REF
M=59, N= 99,
LOCKTH = 0
M=24, N=99,
LOCKTH = 0
REF
LOCKTH = 0
V
V
V
V
T
T
T
T
DD
DD
DD
DD
A
A
A
A
= 48 MHz,
= 20 MHz,
= 25 °C,
= 25 °C,
= 32 kHz,
= 25 °C
= 25 °C
= 3.3 V
= 3.3 V
= 3.3 V
= 3.3 V
= 80 MHz,
= 80 MHz,
= 80 MHz,
2.375
19.5
13.4
15.8
Min
19
25
—
—
—
—
—
—
—
—
16.4
16.4
Typ
1.7
1.7
2.5
0.5
2.4
0.2
91
20
20
55
—
8
2.625
Max
20.5
19.7
17.3
21
15
55
—
—
—
—
—
—
—
ppm/°C
%/°C
MHz
MHz
MHz
Unit
%/V
kHz
kHz
%/V
kHz
µs
µs
µs
%