MC68HC912D60 Motorola, MC68HC912D60 Datasheet - Page 175

• Manufacturer Part Number: MC68HC912D60
• Description: Microcontrollers
• Manufacturer: Motorola

Technical Data — MC68HC912D60A
12.1 Contents
12.2 Introduction
MC68HC912D60A — Rev 3.0
MOTOROLA
12.2
12.3
12.4
12.5
The oscillator implementation on the original 0.65µ (non-suffix) HC12 D-
family is a ‘Colpitts Oscillator with Translated Ground’. This design was
carried over to the first 0.5µ devices (A-suffix), up to the 1L02H mask set,
and is described in Section
Specification. In this section of the document, the term
MC68HC912D60A refers only to the MC68HC912D60A device.
On mask set 2L02H, the Colpitts oscillator was updated, primarily to
improve its performance. To maximise the benefit of this change,
different external component values are required. However, the
oscillator will perform at least as well as the MC68HC912D60A version
with the same components. This implementation and the changes are
described in section
Specification.
In order to make the HC12 D-family oscillator options more flexible, a
Pierce oscillator configuration has been implemented on the 3L02H
mask set. This implementation, described in section
MC68HC912D60P Pierce Oscillator
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
MC68HC912D60A Oscillator Specification. . . . . . . . . . . . . . .176
MC68HC912D60C Colpitts Oscillator Specification . . . . . . . .179
MC68HC912D60P Pierce Oscillator Specification . . . . . . . . .194
Go to: www.freescale.com
Oscillator
12.4 MC68HC912D60C Colpitts Oscillator
12.3 MC68HC912D60A Oscillator
Specification, utilises the Automatic
Section 12. Oscillator
12.5
Technical Data
Oscillator
Contents
175