XC68HC705B32CFN Freescale Semiconductor, XC68HC705B32CFN Datasheet - Page 40

• Manufacturer Part Number: XC68HC705B32CFN
• Description: IC MCU 2.1MHZ 32K OTP 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of XC68HC705B32CFN

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 2.1MHz
• Connectivity: SCI
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 256 x 8
• Ram Size: 528 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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
—
Ω
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
Ω
—
MC68HC05B6
OSC2
Rev. 4.1