SIM3U146-B-GQ Silicon Labs, SIM3U146-B-GQ Datasheet - Page 16

• Manufacturer Part Number: SIM3U146-B-GQ
• Description: ARM Microcontrollers - MCU ARM Cortex-M3 USB 64KB TQFP64
• Manufacturer: Silicon Labs

Specifications of SIM3U146-B-GQ

• 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: TQFP-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 3.6. External Regulator
SiM3U1xx
16
Input Voltage Range (at VRE-
GIN)
Output Voltage (at
EXREGOUT)
NPN Current Drive
PNP Current Drive
EXREGBD Voltage (PNP
Mode)
Standalone Mode Output
Current
External Capacitance with
External BJT
Standalone Mode Load Reg-
ulation
Standalone Mode External
Capacitance
Current Limit Range
Current Limit Accuracy
Foldback Limit Accuracy
Current Sense Resistor
Internal Pull-Down
Internal Pull-Up
Current Sensor
Sensing Pin Voltage
Differential Sensing Voltage
Current at EXTREGSN Pin
Current at EXTREGSP Pin
Parameter
V
V
V
I
I
I
V
EXTREGBD
LR
EXTREGSN
EXTREGSP
EXREGOUT
EXTREGSN
Symbol
C
EXTREGSP
R
V
EXREGBD
ALONE
ALONE
V
I
STAND-
C
I
SENSE
REGIN
I
R
R
LIMIT
STAND-
NPN
PNP
DIFF
BJT
PD
PU
V
1  Sense Resistor
EXREGBD
Programmable in
400 mV Dropout
V
EXTREGSN pin
400mV Dropout
Test Condition
V
EXTREGSP or
100 mV steps
(V
REGIN
Measured at
REGIN
V
EXTREGSN
EXTREGSP
Rev. 1.0
1.5 V
>= 3.5 V
< 3.5 V
> V
REGIN
)
-
-
V
–
REGIN
Min
3.0
1.8
1.5
4.7
2.2
12
47
10
10
–
—
—
—
—
—
—
—
—
—
2.0
6
V
DIFF
Typ
10
12
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
5
8
x 200 +
V
1600
Max
11.5
REGIN
720
3.6
3.6
10
20
—
—
—
—
—
—
—
—
—
—
—
1
mV/mA
Unit
mA
mA
mA
mA
mV
µF
nF
k
k
A
A
%
%
V
V
V
V

V