MC68HC705C8AB Freescale Semiconductor, MC68HC705C8AB Datasheet - Page 110

• Manufacturer Part Number: MC68HC705C8AB
• Description: IC MCU 8K OTP 2.1MHZ 42-SDIP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705C8AB

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 2.1MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: OTP
• Ram Size: 304 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

EPROM/OTPROM (PROM)
9.3.2 Preprogramming Steps
Technical Data
110
NOTE:
NOTE:
Before programming the PROM using an MC68HC05PGMR PCB in
standalone mode, the user should ensure that:
If the V
MCU device will suffer permanent damage.
Once those conditions are met, the user should take these steps before
beginning programming:
No PROM MCU should be inserted in or removed from its board socket
(U2 or U3) while V
1. Remove the V
2. Set switch 1 in the OFF position (removes V
3. Place the programmed EPROM in socket U1.
4. Insert the erased PROM MCU device to be programmed in the
5. Set switch S2 in the RESET position.
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Freescale Semiconductor, Inc.
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A jumper is installed on pins 1 and 2 of mode select header J1.
An EPROM is programmed with the necessary user code.
The erasure window (if any) of the device to be programmed is
covered.
V
V
proper socket:
– MC68HC705C8S or MC68HC705C8P in socket U2 (40-pin
– MC68HC705C8FN in socket U3 (44-pin plastic leaded chip
PP
DD
PP
dual in-line package (DIP)) or
carrier (PLCC)) with the device notch at the upper right corner
of the socket.
level at the MCU exceeds +16 Vdc, then the MC68HC705C8A
is available on the board.
of +5 Vdc is available on the board.
EPROM/OTPROM (PROM)
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PP
PP
(P1, slot 5) or V
power source.
DD
(switch 1) is active on the board.
MC68HC705C8A — Rev. 3
DD
).