MC68HC705J1ACDW Freescale Semiconductor, MC68HC705J1ACDW Datasheet - Page 84

• Manufacturer Part Number: MC68HC705J1ACDW
• Description: IC MCU 4MHZ 1.2K OTP 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705J1ACDW

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 14
• Program Memory Size: 1.2KB (1.2K x 8)
• Program Memory Type: OTP
• Ram Size: 64 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

Low-Power Modes
5.4.5 EPROM/OTPROM
5.4.6 Data-Retention Mode
Technical Data
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
EPROM.
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.
Go to: www.freescale.com
DD
Low-Power Modes
DD
to normal operating voltage.
voltage. The RESET pin must remain low
DD
voltages as low as 2.0 Vdc.
MC68HC705J1A — Rev. 4.0