MC68HC05C9A Datasheet, PDF(96/124 Page) Freescale Semiconductor, Inc

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MC68HC05C9A Datasheet, PDF (96/124 Pages) Freescale Semiconductor, Inc – Microcontrollers

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Electrical Specifications

NOTE 1

VDD

OSC1 PIN(2)

INTERNAL

CLOCK(3)

4064 tCYC

INTERNAL

ADDRESS BUS(3)

$3FFE

$3FFF

INTERNAL

DATA BUS(3)

RESET PIN

NOTE 4

Notes:

1. Power-on reset threshold is typically between 1 V and 2 V.

2. OSC1 line is meant to represent time only, not frequency.

3. Internal clock, internal address bus, and internal data bus are not available externally.

4. RESET outputs VOL during 4064 POR cycles.

Figure 12-7. Power-On Reset Timing Diagram

NEW

PCH

PCL

INTERNAL

CLOCK(1)

INTERNAL

ADDRESS BUS(1)

INTERNAL

DATA BUS(1)

RESET(2)

$3FFE

$3FFF NEW PC

NEW

PCH

PCL

CODE

tRL

Notes:

1. Internal clock, internal address bus, and internal data bus are not available externally.

2. The next rising edge of the internal clock after the rising edge of RESET initiates the reset sequence.

Figure 12-8. External Reset Timing

MC68HC05C9A Advance Information Data Sheet, Rev. 5.1

Freescale Semiconductor

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