mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 438

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

Chapter 14 Dual Output Voltage Regulator (VREG3V3V2)
14.1.3
Figure 14-1
consists of two parallel sub-blocks, REG1 and REG2, providing two independent output voltages.
438
V
V
V
DDR
DDA
SSA
Block Diagram
shows the function principle of VREG by means of a block diagram. The regulator core REG
V
REGEN
LVD
Figure 14-1. VREG3V3 Block Diagram
CTRL
MC9S12E256 Data Sheet, Rev. 1.08
REG2
REG1
LVR
REG: Regulator Core
LVD: Low Voltage Detect
CTRL: Regulator Control
LVR: Low Voltage Reset
POR: Power-on Reset
PIN
LVI
LVR
POR
Freescale Semiconductor
POR
V
V
V
V
DDPLL
SSPLL
DD
SS