MC68HC908JK3EMP MOTOROLA [Motorola, Inc], MC68HC908JK3EMP Datasheet - Page 101

• Manufacturer Part Number: MC68HC908JK3EMP
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

8.1 Contents
8.2 Introduction
MC68H(R)C908JL3E/JK3E/JK1E
MOTOROLA
Technical Data – MC68H(R)C908JL3E/JK3E/JK1E
8.2
8.3
8.4
8.5
8.5.1
8.5.2
8.5.3
8.5.4
8.5.5
8.5.6
8.5.7
8.6
8.6.1
8.6.2
8.7
The oscillator module provides the reference clock for the MCU system
and bus. Two types of oscillator modules are available:
•
•
—
MC68HC908JL3E/JK3E/JK1E — built-in oscillator module (X-tal)
that requires an external crystal or ceramic-resonator. This option
also allows an external clock that can be driven directly into OSC1.
MC68HRC908JL3E/JK3E/JK1E — built-in oscillator module (RC)
that requires an external RC connection only.
Rev. 2.0
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
X-tal Oscillator (MC68HC908JL3E/JK3E/JK1E). . . . . . . . . . . 102
RC Oscillator (MC68HRC908JL3E/JK3E/JK1E) . . . . . . . . . . 103
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Low Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
Oscillator During Break Mode. . . . . . . . . . . . . . . . . . . . . . . . . 106
Crystal Amplifier Input Pin (OSC1). . . . . . . . . . . . . . . . . . . 104
Crystal Amplifier Output Pin (OSC2/PTA6/RCCLK). . . . . . 104
Oscillator Enable Signal (SIMOSCEN). . . . . . . . . . . . . . . . 104
X-tal Oscillator Clock (XTALCLK). . . . . . . . . . . . . . . . . . . . 104
RC Oscillator Clock (RCCLK). . . . . . . . . . . . . . . . . . . . . . . 105
Oscillator Out 2 (2OSCOUT) . . . . . . . . . . . . . . . . . . . . . . . 105
Oscillator Out (OSCOUT). . . . . . . . . . . . . . . . . . . . . . . . . . 105
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Oscillator (OSC)
Section 8. Oscillator (OSC)
Technical Data
101