MC68HC05V12 Datasheet, PDF (24/246 Pages) Freescale Semiconductor, Inc – HCMOS Microcontreller Unit

Freescale Semiconductor, Inc.
General Description
1.7 Power Supply Pin Connections . . . . . . . . . . . . . . . . . . . . . . . .34
1.8 Decoupling Recommendations. . . . . . . . . . . . . . . . . . . . . . . . .35
1.8.1
1.8.2
V_DD to V_SSD: MCU Internal Digital Power Decoupling . . . . .35
V_CCA to V_SSA: Analog Subsystem Power Supply Pins. . . . .35
1.2 Introduction
The Freescale MC68HC05V12 microcontroller is a custom M68HC05-
based MCU featuring a byte data link controller (BDLC) module and on-
chip power regulation for the on-chip gauge drivers. The device is
available packaged in a 68-pin plastic lead chip carrier (PLCC).
A functional block diagram of the MC68HC05V12 is shown in
Figure 1-1.
1.3 Features
Features of the MC68HC05V12 include:
• M68HC05 core with on-chip oscillator for crystal/ceramic
resonator
• 12 Kbytes of user read-only memory (ROM) and 384 bytes of user
random-access memory (RAM)
• 256 bytes of byte, block, or bulk electrically erasable
programmable read-only memory (EEPROM)
• Byte data link controller (BDLC) module
• 5-channel, 8-bit analog-to-digital (A/D) converter
• Serial peripheral interface (SPI)
• 8-bit timer with real-time interrupt (RTI)
• 16-bit timer with one input capture and one output compare
• Two 38-frequency, 6-bit pulse width modulators (PWMs)
• Mask option selectable computer operating properly (COP)
watchdog system
Technical Data
General Description
For More Information On This Product,
Go to: www.freescale.com
MC68HC05V12 — Rev. 2.0