mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 437

no-image

mc9s12e256

Manufacturer Part Number
mc9s12e256
Description
Hcs12 Microcontrollers 16-bit Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
mc9s12e256CFUE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
mc9s12e256CPVE
Manufacturer:
Freescale Semiconductor
Quantity:
135
Part Number:
mc9s12e256CPVE
Manufacturer:
FREESCA
Quantity:
300
Part Number:
mc9s12e256CPVE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
mc9s12e256MFUE
Manufacturer:
FREESCAL
Quantity:
329
Part Number:
mc9s12e256MFUE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
mc9s12e256MPVE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
mc9s12e256VFUE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Chapter 14
Dual Output Voltage Regulator (VREG3V3V2)
14.1
The VREG is a dual output voltage regulator providing two separate 2.5 V (typical) supplies differing in
the amount of current that can be sourced. The regulator input voltage range is from 3.3 V up to 5 V
(typical).
14.1.1
The block VREG includes these distinctive features:
14.1.2
There are three modes VREG can operate in:
Freescale Semiconductor
Two parallel, linear voltage regulators
— Bandgap reference
Low-voltage detect (LVD) with low-voltage interrupt (LVI)
Power-on reset (POR)
Low-voltage reset (LVR)
Full-performance mode (FPM) (MCU is not in stop mode)
The regulator is active, providing the nominal supply voltage of 2.5 V with full current sourcing
capability at both outputs. Features LVD (low-voltage detect), LVR (low-voltage reset), and POR
(power-on reset) are available.
Reduced-power mode (RPM) (MCU is in stop mode)
The purpose is to reduce power consumption of the device. The output voltage may degrade to a
lower value than in full-performance mode, additionally the current sourcing capability is
substantially reduced. Only the POR is available in this mode, LVD and LVR are disabled.
Shutdown mode
Controlled by V
for connectivity of V
This mode is characterized by minimum power consumption. The regulator outputs are in a high
impedance state, only the POR feature is available, LVD and LVR are disabled.
This mode must be used to disable the chip internal regulator VREG, i.e., to bypass the VREG to
use external supplies.
Introduction
Features
Modes of Operation
REGEN
REGEN
(see
).
Chapter 1, “MC9S12E256 Device Overview (MC9S12E256DGV1)”
MC9S12E256 Data Sheet, Rev. 1.08
437

Related parts for mc9s12e256