MC68HC705B16CFN Freescale Semiconductor, MC68HC705B16CFN Datasheet - Page 35

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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
STOP
YES
Watchdog active?
Stop oscillator and all
clocks.
Clear I bit.
NO
Reset?
IRQ
NO
external
interrupt?
YES
Turn on oscillator.
Wait for time delay to
stabilise
Generate
watchdog reset
(1) Fetch reset vector or
(2) Service interrupt:
a. stack
b. set I-bit
c. vector to interrupt
routine
Figure 2-3 STOP and WAIT flowcharts
MC68HC05B6
MODES OF OPERATION AND PIN DESCRIPTIONS
Rev. 4.1
WAIT
Oscillator active. Timer, SCI,
NO
A/D, EEPROM clocks active.
Processor clocks stopped
Clear I-bit
NO
Reset?
YES
YES
external
interrupt?
YES
Restart processor clock
(1) Fetch reset vector or
(2) Service interrupt:
a. stack
b. set I-bit
c. vector to interrupt
routine
IRQ
NO
Timer interrupt?
YES
NO
YES
NO
SCI interrupt?
Freescale
2-7
2

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