MC68HC705J1ACDW Freescale Semiconductor, MC68HC705J1ACDW Datasheet - Page 39

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
-
Freescale Semiconductor, Inc.
2.6.2 EPROM Programming Register
The EPROM programming register (EPROG) contains the control bits
for programming the EPROM/OTPROM.
Address:
Read:
Write:
Reset:
ELAT — EPROM Bus Latch Bit
This read/write bit latches the address and data buses for
EPROM/OTPROM programming. Clearing the ELAT bit automatically
clears the EPGM bit. EPROM/OTPROM data cannot be read while
the ELAT bit is set. Reset clears the ELAT bit.
MPGM — MOR Programming Bit
This read/write bit applies programming power from the IRQ/V
to the mask option register. Reset clears MPGM.
EPGM — EPROM Programming Bit
This read/write bit applies the voltage from the IRQ/V
EPROM. To write the EPGM bit, the ELAT bit must be set already.
Reset clears EPGM.
MC68HC705J1A — Rev. 4.0
For More Information On This Product,
$0018
Bit 7
6
5
4
0
0
0
0
R
R
R
0
0
0
0
= Unimplemented
Figure 2-3. EPROM Programming Register (EPROG)
1 = Address and data buses configured for EPROM/OTPROM
programming the EPROM
0 = Address and data buses configured for normal operation
1 = Programming voltage applied to MOR
0 = Programming voltage not applied to MOR
1 = Programming voltage (IRQ/V
0 = Programming voltage (IRQ/V
Memory
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Memory
EPROM/OTPROM
3
2
1
Bit 0
0
ELAT
MPGM
EPGM
R
0
0
0
0
R = Reserved
PP
pin to the
PP
pin) applied to EPROM
PP
pin) not applied to EPROM
PP
Technical Data
pin

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