Back to Know-How on Development for F2MC-16LX Family
10. To achieves the low consumption current mode without steady oscillation.
F2
MC-16LX family is supported time-base timer mode as one of low consumption mode.
Time-base timer mode uses consumption current of approximately a few hundred µA, and this mode is possible to return to normal
operating mode without oscillation stability wait time.
This mode is released by external reset, external interrupt, time-base timer interrupt and watch timer interrupt.
MCU status and consumption at time-base timer mode is as following (e.g. MB90385series)
MCU status of Time-base timer mode
| main clock | sub clock | machin clock | CPU | Peripheral function of operating |
| Operate | Operate | Stop | Stop | Only time-base timer and watch timer |
Power supply current of Time-base timer mode :MB90385series case)
| Symbol | Conditions | typ | max | Remarks |
| Icts | Vcc=5.0V, Oscillation frequency (HCLK)=4MHz Transfer from main clock mode | 750µA | 1.0mA | FLASH |
| 200µA | 350µA | MASK |
In case of setting oscillation frequency HCLK=4.096MHz and interval time=212/HCLK, time-base timer is possible to occur by 1.0ms, or it is possible to use as counter for watch.
