MC68HC705B16CFN Freescale Semiconductor, MC68HC705B16CFN Datasheet - Page 186

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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
D.3
When using an external clock the OSC1 and OSC2 pins should be driven in antiphase, as shown
in
external clock input. The equivalent specification of the external clock source should be used in
lieu of t
Freescale
D-4
Figure
OXOV
C
OSC1
D-2. The t
R
C
C
C
C
R
Q
S
0
1
OSC1
OSC2
P
(a) Crystal/ceramic resonator
or t
(max)
OSC1
External clock
oscillator connections
ILCH
15 – 40 15 – 30
15 – 30 15 – 25
30 000
OXOV
2MHz
.
400
10
MCU
5
8
Crystal
or t
40 000
4MHz
75
12
10
OSC2
(d) Typical crystal and ceramic resonator parameters
ILCH
7
Figure D-2 Oscillator connections
C
specifications (see
OSC2
Unit
MΩ
pF
ƒF
pF
pF
MC68HC05B16
OSC1
Section
(c) External clock source connections
External
(b) Crystal equivalent circuit
OSC1
R
C
C
C
C
R
Q
clock
S
0
1
OSC1
OSC2
P
L
(typ)
11.4) do not apply when using an
Ceramic resonator
MCU
2 – 4MHz
C
1 – 10
C
1250
0
4.3
1
10
40
30
30
OSC2
R
NC
S
Unit
MΩ
pF
pF
pF
pF
MC68HC05B6
OSC2
Rev. 4.1

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