MC68HC705J1ACDW Freescale Semiconductor, MC68HC705J1ACDW Datasheet - Page 38

IC MCU 4MHZ 1.2K OTP 20-SOIC

MC68HC705J1ACDW

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

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
-

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Manufacturer
Quantity
Price
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MC68HC705J1ACDW
Manufacturer:
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20 000
Part Number:
MC68HC705J1ACDW
Manufacturer:
MOTOROLA/摩托罗拉
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Memory
2.6 EPROM/OTPROM
2.6.1 EPROM/OTPROM Programming
Technical Data
NOTE:
A microcontroller unit (MCU) with a quartz window has 1240 bytes of
erasable, programmable ROM (EPROM). The quartz window allows
EPROM erasure with ultraviolet light.
Keep the quartz window covered with an opaque material except when
programming the MCU. Ambient light can affect MCU operation.
In an MCU without the quartz window, the EPROM cannot be erased
and serves as 1240 bytes of one-time programmable ROM (OTPROM).
These addresses are user EPROM/OTPROM locations:
The computer operating properly (COP) register (COPR) is an
EPROM/OTPROM location at address $07F0.
The mask option register (MOR) is an EPROM/OTPROM location at
address $07F1.
The two ways to program the EPROM/OTPROM are:
1. Manipulating the control bits in the EPROM programming register
2. Programming the EPROM/OTPROM with the M68HC705J
Freescale Semiconductor, Inc.
For More Information On This Product,
$0300–$07CF
$07F8–$07FF, used for user-defined interrupt and reset vectors
to program the EPROM/OTPROM on a byte-by-byte basis
in-circuit simulator (M68HC705JICS) available from Freescale
Go to: www.freescale.com
Memory
MC68HC705J1A — Rev. 4.0

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