MC68HC705B16CFN

Manufacturer Part NumberMC68HC705B16CFN
DescriptionIC MCU 2.1MHZ 15K OTP 52-PLCC
ManufacturerFreescale Semiconductor
SeriesHC05
MC68HC705B16CFN datasheet
 


Specifications of MC68HC705B16CFN

Core ProcessorHC05Core Size8-Bit
Speed2.1MHzConnectivitySCI
PeripheralsPOR, WDTNumber Of I /o32
Program Memory Size15KB (15K x 8)Program Memory TypeOTP
Eeprom Size256 x 8Ram Size352 x 8
Voltage - Supply (vcc/vdd)4.5 V ~ 5.5 VData ConvertersA/D 8x8b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case52-PLCCLead Free Status / RoHS StatusContains lead / RoHS non-compliant
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F.9
Control timing
Table F-11 Control timing for 5V operation
= 5.0 Vdc ± 10%, V
(V
DD
SS
Characteristic
Frequency of operation
Crystal option
External clock option
Internal operating frequency (f
Using crystal
Using external clock
Cycle time (see
Figure
9-1)
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
4064 cycle
16 cycle
Watchdog RESET output pulse width
Watchdog time-out
EEPROM byte erase time
0 to 70 (standard)
– 40 to 85 (extended)
– 40 to 105 (industrial)
– 40 to 125 (automotive)
EEPROM byte program time
0 to 70 (standard)
– 40 to 85 (extended)
– 40 to 105 (industrial)
– 40 to 125 (automotive)
Timer (see
Figure
F-10)
(2)
Resolution
Input capture pulse width
Input capture pulse period
Interrupt pulse width (edge-triggered)
Interrupt pulse period
(5)
OSC1 pulse width
(6)
Write/Erase endurance
(6)(7)
Data retention
(1) For bus frequencies less than 2 MHz, the internal RC oscillator should be used when
programming the EEPROM.
(2) Since a 2-bit prescaler in the timer must count four external cycles (t
factor in determining the timer resolution.
(3) The minimum period t
TLTL
execute the capture interrupt service routine plus 24 t
(4) The minimum period t
ILIL
the interrupt service routine plus 21 t
(5) t
and t
should not total less than 238ns.
OH
OL
(6) At a temperature of 85°C
(7) Refer to Reliability Monitor Report (current quarterly issue) for current failure rate information.
MC68HC05B6
Rev. 4.1
= 0 Vdc, T
= T
to T
)
A
L
H
Symbol
Min
f
—
OSC
f
dc
OSC
/2)
OSC
f
dc
OP
f
dc
OP
t
480
CYC
Figure
9-1)
t
—
OXOV
t
ILCH
t
ADRC
t
ADON
t
3.0
RL
t
4064
PORL
t
16
PORL
t
1.5
DOGL
t
6144
DOG
t
10
ERA
t
10
ERA
t
10
ERA
t
10
ERA
(1)
t
10
PROG
t
10
PROG
t
15
PROG
t
20
PROG
t
4
RESL
t
, t
125
TH
TL
(3)
t
—
TLTL
t
125
ILIH
(4)
t
—
ILIL
t
, t
90
OH
OL
—
10000
—
10
CYC
should not be less than the number of cycle times it takes to
.
CYC
should not be less than the number of cycle times it takes to execute
.
CYC
MC68HC705B16N
Max
Unit
4.2
MHz
4.2
MHz
2.1
MHz
2.1
MHz
—
ns
100
ms
100
ms
µs
5
500
µs
—
t
CYC
t
CYC
—
t
CYC
—
—
t
CYC
7168
t
CYC
—
ms
—
ms
—
ms
—
ms
—
ms
—
ms
—
ms
—
ms
—
t
CYC
—
ns
—
t
CYC
—
ns
—
t
CYC
—
ns
cycles
years
), this is the limiting
Freescale
F-25
14

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