MC68HC705B16CFN Freescale Semiconductor, MC68HC705B16CFN Datasheet - Page 40

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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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2
2.5.8.3
An external clock should be applied to the OSC1 input, with the OSC2 pin left unconnected, as
shown in
using an external clock input. The equivalent specification of the external clock source should be
used in lieu of t
Freescale
2-12
C
OSC1
Figure
(a) Crystal/ceramic resonator
R
C
C
C
C
R
Q
OSC1
S
0
1
OSC1
OSC2
P
(max)
oscillator connections
External clock
OXOV
2-5(c). The t
15 – 40 15 – 30
15 – 30 15 – 25
MCU
30 000
2MHz
R
or t
400
10
MODES OF OPERATION AND PIN DESCRIPTIONS
P
5
8
Crystal
ILCH
OSC2
40 000
4MHz
.
75
12
10
(d) Typical crystal and ceramic resonator parameters
7
OXOV
Figure 2-5 Oscillator connections
C
OSC2
or t
Unit
MΩ
pF
ƒF
pF
pF
ILCH
specifications (see
OSC1
(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)
Section
Ceramic resonator
MCU
2 – 4MHz
C
1 – 10
C
1250
0
4.3
1
10
40
30
30
11.4) do not apply when
OSC2
R
NC
S
Unit
MΩ
pF
pF
pF
pF
MC68HC05B6
OSC2
Rev. 4.1

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