The following revision history table summarizes changes contained in this document. For your
convenience, the page number designators have been linked to the appropriate location.
Revision History (Sheet 1 of 3)
N/A Initial release
1.2 Features — Added 8-pin dual flat no lead (DFN) packages to features list.
Figure 1-2. MCU Pin Assignments — Figure updated to include DFN packages.
Figure 2-1. Memory Map — Clarified illegal address and unimplemented
Figure 2-2. Control, Status, and Data Registers — Corrected bit definitions for
Port A Data Register (PTA) and Data Direction Register A (DDRA).
Table 13-3. Interrupt Sources — Corrected vector addresses for keyboard
interrupt and ADC conversion complete interrupt.
Chapter 13 System Integration Module (SIM) — Removed reference to break
status register as it is duplicated in break module.
11.3.1 Internal Oscillator and 184.108.40.206 Internal Oscillator Trimming — Clarified
oscillator trim option ordering information and what to expect with untrimmed
Figure 11-5. Oscillator Trim Register (OSCTRIM) — Bit 1 designation corrected.
Figure 15-13. Monitor Mode Circuit (Internal Clock, No High Voltage) —
Diagram updated for clarity.
0.1 Figure 12-1. I/O Port Register Summary — Corrected bit definitions for PTA7,
DDRA7, and DDRA6.
Figure 12-2. Port A Data Register (PTA) — Corrected bit definition for PTA7.
Figure 12-3. Data Direction Register A (DDRA) — Corrected bit definitions for
DDRA7 and DDRA6.
Figure 12-6. Port B Data Register (PTB) — Corrected bit definition for PTB1
Chapter 9 Keyboard Interrupt Module (KBI) — Section reworked after deletion
of auto wakeup for clarity.
Chapter 4 Auto Wakeup Module (AWU) — New section added for clarity.
Figure 10-1. LVI Module Block Diagram — Corrected LVI stop representation.
Chapter 16 Electrical Specifications — Extensive changes made to electrical
17.5 8-Pin Dual Flat No Lead (DFN) Package (Case #1452) — Added case
outline drawing for DFN package.
Chapter 17 Ordering Information and Mechanical Specifications — Added
ordering information for DFN package.
0.2 4.2 Features — Corrected third bulleted item.
MC68HC908QY/QT Family Data Sheet, Rev. 5
4 Freescale Semiconductor