MC68HC705B16CFN Freescale Semiconductor, MC68HC705B16CFN Datasheet - Page 186

• Manufacturer Part Number: MC68HC705B16CFN
• Description: IC MCU 2.1MHZ 15K OTP 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC05r

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

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
—
Ω
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
Ω
—
MC68HC05B6
OSC2
Rev. 4.1