MC68HC705B16CFN Freescale Semiconductor, MC68HC705B16CFN Datasheet - Page 278

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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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14
H.9
Freescale
H-28
(1) For bus frequencies less than 2 MHz, the internal RC oscillator should be used when
(2) Since a 2-bit prescaler in the timer must count four external cycles (t
(3) The minimum period t
(4) The minimum period t
(5) t
(6) At a temperature of 85°C
(7) Refer to Reliability Monitor Report (current quarterly issue) for current failure rate information.
(V
Frequency of operation
Internal operating frequency (f
Cycle time (see
Crystal oscillator start-up time (see
Stop recovery start-up time (crystal oscillator)
RC oscillator stabilization time
A/D converter stabilization time
External RESET input pulse width
Power-on RESET output pulse width
Watchdog RESET output pulse width
Watchdog time-out
EEPROM byte erase time
EEPROM byte program time
Timer (see
Interrupt pulse width (edge-triggered)
Interrupt pulse period
OSC1 pulse width
Write/Erase endurance
Data retention
DD
Control timing
programming the EEPROM.
in determining the timer resolution.
the capture interrupt service routine plus 24 t
the interrupt service routine plus 21 t
OH
Crystal option
External clock option
Using crystal
Using external clock
4064 cycle
16 cycle
Resolution
Input capture pulse width
Input capture pulse period
= 5.0 Vdc ± 10%, V
and t
– 40 to 85 (extended)
– 40 to 85 (extended)
Figure
0 to 70 (standard)
0 to 70 (standard)
OL
(6)(7)
(2)
should not total less than 238ns.
Figure
Characteristic
(5)
H-10)
Table H-11 Control timing for 5V operation
9-1)
(6)(7)
SS
TLTL
ILIL
= 0 Vdc, T
(1)
should not be less than the number of cycle times it takes to execute
should not be less than the number of cycle times it takes to execute
OSC
/2)
Figure
MC68HC705B32
A
CYC
= –40 to +85°C)
9-1)
.
CYC
Symbol
t
t
.
OH
t
t
t
t
t
t
t
t
TH
t
t
f
f
OXOV
t
ADRC
ADON
DOGL
t
PROG
PROG
t
PORL
PORL
t
t
RESL
t
ILCH
DOG
TLTL
t
OSC
OSC
f
f
CYC
ERA
ERA
t
ILIH
ILIL
OP
OP
RL
, t
, t
TL
OL
4064
6144
Min
476
125
125
3.0
1.5
dc
dc
16
10
10
10
10
90
4
(3)
(4)
CYC
10000
10
), this is the limiting factor
7168
Max
100
100
500
4.2
4.2
2.1
2.1
5
cycles
years
MHz
MHz
MHz
MHz
Unit
t
t
t
t
t
t
t
t
CYC
CYC
CYC
CYC
CYC
CYC
CYC
CYC
ms
ms
ms
ms
ms
ms
µs
µs
ns
ns
ns
ns
MC68HC05B6
Rev. 4.1

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