MC68HC705C8ACFN Freescale Semiconductor, MC68HC705C8ACFN Datasheet - Page 108

• Manufacturer Part Number: MC68HC705C8ACFN
• Description: IC MCU 4MHZ 8K OTP 44-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705C8ACFN

• 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: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

EPROM/OTPROM (PROM)
Technical Data
108
To program the PROM MCU, the MCU is installed in the PCB, along with
an EPROM device programmed with user code; the MCU is then
subjected to a series of routines. The routines necessary to program,
verify, and secure the PROM MCU are:
Other board routines available to the user are:
The user first configures the MCU for the bootstrap mode of operations
by installing a fabricated jumper across pins 1 and 2 of the board’s mode
select header, J1. Next, the board’s mode switches (S3, S4, S5, and S6)
are set to determine the routine to be executed after the next reset, as
shown in
Program and verify PROM
Verify PROM contents only
Secure PROM contents and verify
Secure PROM contents and dump
Load program into RAM and execute
Execute program in RAM
Dump PROM contents
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Freescale Semiconductor, Inc.
For More Information On This Product,
Program and verify PROM
Verify PROM contents only
Secure PROM and verify
Secure PROM and dump through the serial communications
interface (SCI)
Load program into random-access memory (RAM) and execute
Execute program in RAM
Dump PROM contents (binary upload)
Table
EPROM/OTPROM (PROM)
Go to: www.freescale.com
Table 9-2. PROM Programming Routines
9-2.
Routine
Off
Off
On
On
Off
Off
Off
S3
MC68HC705C8A — Rev. 3
On
S4
Off
Off
Off
On
Off
On
Off
On
On
On
Off
Off
On
S5
MOTOROLA
Off
Off
Off
Off
Off
On
Off
S6