MC68HC705B16CFN Freescale Semiconductor, MC68HC705B16CFN Datasheet - Page 112

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MC68HC705B16CFN

Manufacturer Part Number
MC68HC705B16CFN
Description
IC MCU 2.1MHZ 15K OTP 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet

Specifications of MC68HC705B16CFN

Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI
Peripherals
POR, WDT
Number Of I /o
32
Program Memory Size
15KB (15K x 8)
Program Memory Type
OTP
Eeprom Size
256 x 8
Ram Size
352 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
52-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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9
Freescale
9-8
external interrupt?
Execute instruction
internal interrupt?
internal interrupt?
Is I-bit set?
Fetch next
instruction
Reset
Timer
IRQ
SCI
Figure 9-3 Interrupt flow chart
RESETS AND INTERRUPTS
Clear IRQ request
latch
Load PC from:
IRQ:
Timer IC: $1FF8-$1FF9
Timer OC: $1FF6-$1FF7
Timer OVF:$1FF4-$1FF5
SCI:
Complete interrupt routine
and execute RTI
PC, X, A, CC
Set I-bit
$1FFA-$1FFB
$1FF2-$1FF3
Stack
MC68HC05B6
Rev. 4.1

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