MC68HC705J1ACDW Freescale Semiconductor, MC68HC705J1ACDW Datasheet - Page 71

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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4.3.1 Power-On Reset
MC68HC705J1A — Rev. 4.0
NOTE:
A positive transition on the V
The power-on reset is strictly for power-up conditions and cannot be
used to detect drops in power supply voltage.
A 4064-t
active allows the clock generator to stabilize. If any reset source is active
at the end of this delay, the MCU remains in the reset condition until all
reset sources are inactive.
ADDRESS BUS
Notes:
1. Power-on reset threshold is typically between 1 V and 2 V.
2. Internal clock, internal address bus, and internal data bus are not available externally.
Freescale Semiconductor, Inc.
INTERNAL
INTERNAL
INTERNAL
OSC1 PIN
DATA BUS
For More Information On This Product,
CLOCK
V
DD
cyc
(NOTE 1)
(internal clock cycle) delay after the oscillator becomes
Go to: www.freescale.com
Resets and Interrupts
Figure 4-2. Power-On Reset Timing
$07FE
OSCILLATOR STABILIZATION DELAY
DD
$07FE
pin generates a power-on reset.
$07FE
$07FE
$07FE
Resets and Interrupts
$07FE
NEW PCH NEW PCL
Technical Data
$07FF
Resets

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