参数资料
型号: MC68HC05T7B
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
封装: SDIP-56
文件页数: 39/109页
文件大小: 9008K
代理商: MC68HC05T7B
Pin Descriptions
Pin Functions
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 3.0
Technical Data
MOTOROLA
Pin Descriptions
29
Mount the resonator and components as close as possible to the pins for
startup stabilization and to minimize output distortion. An internal startup
resistor of approximately 2 M
is provided between OSC1 and OSC2 as
a programmable mask option.
Figure 2-5. Ceramic Resonator Connections with
Oscillator Internal Resistor Mask Option
Figure 2-6. Ceramic Resonator Connections without
Oscillator Internal Resistor Mask Option
MCU
C1
C2
CE
RA
MI
C
C4
C3
CERAMIC
C3
27 pF
C4
27 pF
R
ESON
A
T
O
R
RESONATOR
OS
C
1
OS
C
2
OSC1
OSC2
VDD
VSS
MCU
C1
C2
R
CE
R
A
M
IC
C4
C3
R
10 M
CERAMIC
C3
27 pF
C4
27 pF
R
ESO
N
A
T
O
R
RESONATOR
VSS
VDD
VSS
OSC1
OSC2
OS
C
1
OS
C
2
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