mc68hc705c4acfn Freescale Semiconductor, Inc, mc68hc705c4acfn Datasheet - Page 72

• Manufacturer Part Number: mc68hc705c4acfn
• Description: M68hc05 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Low-Power Modes
6.5 Data-Retention Mode
Technical Data
72
In data-retention mode, the MCU retains random-access memory (RAM)
contents and central processor unit (CPU) register contents at V
voltages as low as 2.0 Vdc. The data-retention feature allows the MCU
to remain in a low power-consumption state during which it retains data,
but the CPU cannot execute instructions.
To put the MCU in data-retention mode:
To take the MCU out of data-retention mode:
1. Drive the RESET pin to logic 0.
2. Lower V
1. Return V
2. Return the RESET pin to logic 1.
during data-retention mode.
DD
DD
Low-Power Modes
voltage. The RESET pin must remain low continuously
to normal operating voltage.
MC68HC705C4A • MC68HSC705C4A — Rev. 3.0
MOTOROLA
DD