參數(shù)資料
型號: HD40A4054
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計算機)
中文描述: 4位單片機(4位單片微計算機)
文件頁數(shù): 25/101頁
文件大?。?/td> 610K
代理商: HD40A4054
HD404054 Series/HD404094 Series
25
Standby
Oscillator: Active
Peripheral clocks: Active
All other clocks: Stop
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Yes
Restart
processor clocks
Reset MCU
Execute
next instruction
Accept interrupt
Restart
processor clocks
No
Yes
IF = 1,
IM = 0, and
IE = 1
RESET
= 0
IF0
IM0
= 1
IF1
IM1
= 1
IFTA
IMTA
= 1
IFTC
IMTC
= 1
IFTD
IMTD
= 1
No
Yes
IFS1
IMS1
= 1
No
Stop
Oscillator: Stop
Peripheral clocks: Stop
All other clocks: Stop
RESET
= 0
STOPC
= 0
RAME = 1
RAME = 0
Yes
Yes
No
No
Execute
next instruction
Figure 12 MCU Operation Flowchart
Stop Mode:
In stop mode, all MCU operations stop and RAM data is retained. Therefore, the power
dissipation in this mode is the least of all modes. The OSC
1
and OSC
2
oscillator stops. The MCU enters
stop mode if the STOP instruction is executed in active mode.
Stop mode is terminated by a
RESET
input or a
STOPC
input as shown in figure 13.
RESET
or
STOPC
must be applied for at least one t
RC
to stabilize oscillation (refer to the AC Characteristics section). When
the MCU restarts after stop mode is cancelled, all RAM contents before entering stop mode are retained,
but the accuracy of the contents of the accumulator, B register, W register, X/SPX register, Y/SPY register,
carry flag, and serial data register cannot be guaranteed.
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相關代理商/技術參數(shù)
參數(shù)描述
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