c8051t602 Silicon Laboratories, c8051t602 Datasheet - Page 54

• Manufacturer Part Number: c8051t602
• Description: Mixed Signal Otp Eprom Mcu Family
• Manufacturer: Silicon Laboratories

C8051T600/1/2/3/4/5
Table 8.1. Internal Voltage Regulator Electrical Characteristics
–40 to +85 °C unless otherwise specified.
54
Input Voltage Range
Bias Current
Bit 7
Bit 6
Bits 5–1 RESERVED. Must Always Write 00000b.
Bit 0
STOPCF BYPASS
R/W
Bit7
Parameter
STOPCF: Stop Mode Configuration.
This bit configures the regulator’s behavior when the device enters STOP mode.
0: Regulator is still active in STOP mode. Any enabled reset source will reset the device.
1: Regulator is shut down in STOP mode. Only the RST pin, Supply Monitor or power cycle
can reset the device.
BYPASS: Bypass Internal Regulator.
This bit places the regulator in bypass mode, turning off the regulator, and allowing the core
to run directly from the V
0: Normal Mode - Regulator is on.
1: Bypass Mode - Regulator is off, and the microcontroller core operates directly from the
V
IMPORTANT: Bypass mode is for use with an external regulator as the supply voltage
only. Never place the regulator in bypass mode when the V
greater than the specifications given in Table 2.1 on page 23. Doing so may cause
permanent damage to the device.
OTPPCE: OTP Power Controller Enable.
This bit can help the system save power at slower system clock frequencies (about 2 MHz or
less) by automatically shutting down the OTP memory between clocks when information is
not being fetched from the OTP memory.
0: Normal Mode - OTP power controller disabled (OTP memory is always on).
1: Low Power Mode - OTP power controller enabled (OTP memory turns on/off as needed).
Note : If an external clock source is used with the OTP Power Controller enabled, and the
clock frequency changes from slow (<2 MHz) to fast (>2 MHz), the OTP power will turn on,
and up to 20 clocks may be "skipped" to ensure that the OTP power is stable before reading
memory.
DD
supply voltage.
R/W
SFR Definition 8.1. REG0CN: Voltage Regulator Control
Bit6
R/W
Bit5
Normal Mode
—
DD
R/W
Bit4
supply pin.
—
Conditions
Rev. 0.5
R/W
Bit3
—
R/W
Bit2
—
Min
1.8
R/W
—
Bit1
—
DD
supply voltage is
TBD
Typ
OTPPCE 00000000
—
R/W
Bit0
Max
3.6
—
SFR Address:
Reset Value
0xC7
Units
µA
V