參數(shù)資料
型號: MC68HC705C8ACP
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS Microcontroller Unit
中文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP40
封裝: PLASTIC, DIP-40
文件頁數(shù): 60/108頁
文件大?。?/td> 718K
代理商: MC68HC705C8ACP
Low-Power Modes
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
60
Freescale Semiconductor
6.3.5.1 STOP
The STOP instruction during EPROM programming clears the EPGM bit in the EPROM programming
register, removing the programming voltage from the EPROM.
6.3.5.2 WAIT
The WAIT instruction has no effect on EPROM/OTPROM operation.
6.4 Data-Retention Mode
In data-retention mode, the MCU retains RAM contents and CPU register contents at V
DD
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:
1.
Drive the RESET pin to logic 0.
2.
Lower the V
DD
voltage. The RESET pin must remain low continuously during data-retention mode.
To take the MCU out of data-retention mode:
1.
Return V
DD
to normal operating voltage.
2.
Return the RESET pin to logic 1.
6.5 Timing
Figure 6-1. Stop Mode Recovery Timing
t
ILIH
OSCILLATOR STABILIZATION DELAY
(5)
OSC
t
RL
RESET
IRQ/V
PP
(NOTE 2)
IRQ/V
(NOTE 3)
INTERNAL
CLOCK
INTERNAL
ADDRESS
Notes:
1. Internal clocking from OSC1 pin
2. Edge-triggered external interrupt mask option
3. Edge- and level-triggered external interrupt mask option
4. Reset vector shown as example
5. 4064 cycles or 128 cycles, depending on state of SOSCD bit in MOR
RESET OR INTERRUPT
VECTOR FETCH
$07FE
(NOTE 4)
$07FE
$07FE
$07FE
$07FE
$07FF
BUS
(NOTE 1)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705C8ACPB 制造商:Freescale Semiconductor 功能描述:
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MC68HC705C8AVFB 制造商:Rochester Electronics LLC 功能描述:- Bulk