MC68HC705J1ACDW Freescale Semiconductor, MC68HC705J1ACDW Datasheet - Page 84
Manufacturer Part Number
IC MCU 4MHZ 1.2K OTP 20-SOIC
Specifications of MC68HC705J1ACDW
Number Of I /o
Program Memory Size
1.2KB (1.2K x 8)
Program Memory Type
64 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
-40°C ~ 85°C
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
5.4.6 Data-Retention Mode
The STOP instruction:
The WAIT instruction:
In data-retention mode, the MCU retains random-access memory (RAM)
contents and CPU register contents at V
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 the V
1. Return V
2. Return the RESET pin to logic 1.
The STOP instruction during erasable, programmable read-only
memory (EPROM) programming clears the EPGM bit in the EPROM
programming register, removing the programming voltage from the
The WAIT instruction has no effect on EPROM/one-time
programmable read-only memory (OTPROM) operation.
Freescale Semiconductor, Inc.
For More Information On This Product,
continuously during data-retention mode.
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to normal operating voltage.
voltage. The RESET pin must remain low
voltages as low as 2.0 Vdc.
MC68HC705J1A — Rev. 4.0