DM-COP8/44P National Semiconductor, DM-COP8/44P Datasheet - Page 28
![no-image](/images/manufacturer_photos/0/4/469/national_semiconductor_sml.jpg)
DM-COP8/44P
Manufacturer Part Number
DM-COP8/44P
Description
CABLE FOR DEBUG MODULE 44-PLCC
Manufacturer
National Semiconductor
Datasheet
1.DM-COP820D.pdf
(254 pages)
Specifications of DM-COP8/44P
Accessory Type
44-PLCC Target Cable
For Use With/related Products
MetaLink Debug Module
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*DM-COP8/44P
- Current page: 28 of 254
- Download datasheet (2Mb)
External Clock Circuitry
Divider
Clock Generator
Instruction Cycle Frequency
Figure 1-7 Clock Generation
1.7.5
Oscillator Circuits
Typically there are three types of clock oscillator options available: external oscillator,
R/C oscillator, or crystal oscillator.
External Oscillator
An external square wave clock source is generated outside and presented to the
microcontroller clock input pin. The clock source must meet the specified duty cycle, rise
and fall times, and input level.
Clock Input
Figure 1-8 External Oscillator
R/C Oscillator
The R/C (resistor/capacitor) oscillator requires the use of external R/C components or R/C
integrated on-chip. The oscillator frequency is a function of the resistance and
capacitance values.
V
CC
Clock Input
R
or Clock input pin open for internal R/C
C
Figure 1-9 R/C Oscillator
Crystal Oscillator
The phase shift oscillator referred to as the Pierce Oscillator has many desirable
characteristics. It provides a large output signal and drives the crystal at a low power
level. The low power level leads to low power dissipation, especially at higher frequencies.
1-16
MICROCONTROLLER BASICS
Related parts for DM-COP8/44P
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![DM-COP8/20D](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
CABLE FOR DEBUG MODULE 20-DIP
Manufacturer:
National Semiconductor
Datasheet:
![DM-COP8/28D](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
CABLE FOR DEBUG MODULE 28-DIP
Manufacturer:
National Semiconductor
Datasheet:
![DM61-J1-2-S2-05-Q](/photos/15/6/150699/dm61-j1-2-s2-05-q_tmb.jpg)
Part Number:
Description:
SWITCH ROCKER DPDT BLK
Manufacturer:
C&K Components
Datasheet:
![DM62J12S205Q](/photos/15/7/150719/dm62j12s205q_tmb.jpg)
Part Number:
Description:
SWITCH ROCKER POWER DPST 10A QC
Manufacturer:
C&K Components
Datasheet:
![DM22J12S205PQ](/photos/15/7/150722/dm22j12s205pq_tmb.jpg)
Part Number:
Description:
SWITCH PWR ROCKER DPST SNAP-IN
Manufacturer:
C&K Components
Datasheet:
![DM62J11S205Q](/photos/15/7/150726/dm62j11s205q_tmb.jpg)
Part Number:
Description:
SWITCH ROCKER DPST SNAP-IN QC
Manufacturer:
C&K Components
Datasheet:
![DM54J72S205Q3](/photos/15/7/150727/dm14j72s205q3__dm54j72s205q3_tmb.jpg)
Part Number:
Description:
SWITCH ROCKER SPST ILUM 10A/125V
Manufacturer:
C&K Components
Datasheet:
![DM61J12S205PQ](/photos/15/7/150750/dm61j12s205pq_tmb.jpg)
Part Number:
Description:
SWITCH ROCKER DPDT W/MRK QC
Manufacturer:
C&K Components
Datasheet:
![DM24J72S205Q6](/photos/15/7/150754/dm24j72s205q4__dm24j72s205q6__dm64j72s205q6__dm64j72s205q3_tmb.jpg)
Part Number:
Description:
SWITCH ROCKER POWER DPST 3A QC
Manufacturer:
C&K Components
Datasheet:
![DM64J72S205Q6](/photos/15/7/150754/dm24j72s205q4__dm24j72s205q6__dm64j72s205q6__dm64j72s205q3_tmb.jpg)
Part Number:
Description:
SWITCH ROCKER ILLUM 10A GRN
Manufacturer:
C&K Components
Datasheet:
![DM22J12S205Q](/photos/15/10/151010/dm22j12s205q_tmb.jpg)
Part Number:
Description:
SWITCH ROCKER DPST SNAP-IN QC
Manufacturer:
C&K Components
Datasheet:
![DM24J72S205Q4](/photos/15/7/150754/dm24j72s205q4__dm24j72s205q6__dm64j72s205q6__dm64j72s205q3_tmb.jpg)
Part Number:
Description:
SWITCH ROCKER POWER DPST 3A QC
Manufacturer:
C&K Components
Datasheet:
![DM21J12S205Q](/photos/38/60/386005/dm_247c82af6b6e19d2d4dbec7f03f8c106-en_tmb.jpg)
Part Number:
Description:
MINI ROCKER DPDT BLK
Manufacturer:
C&K Components
Datasheet:
![DM14J72S205Q3](/photos/15/7/150727/dm14j72s205q3__dm54j72s205q3_tmb.jpg)
Part Number:
Description:
SWITCH ROCKER POWER SPST 3A QC
Manufacturer:
C&K Components
Datasheet: