mc68hc705c9a Freescale Semiconductor, Inc, mc68hc705c9a Datasheet - Page 101

• Manufacturer Part Number: mc68hc705c9a
• Description: M68hc05 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
ADDRESS BUS
Notes:
ADDRESS BUS
Notes:
DATA BUS
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 V
INTERNAL
INTERNAL
INTERNAL
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.
DATA BUS
OSC1 PIN
CLOCK
RESET
RESET PIN
INTERNAL
INTERNAL
INTERNAL
CLOCK
(1)
(1)
(1)
(2)
V
DD
(2)
(3)
(3)
(3)
(NOTE 1)
OL
during 4064 POR cycles.
MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
Figure 12-7. Power-On Reset Timing Diagram
3FFE
Figure 12-8. External Reset Timing
t
RL
3FFE
(NOTE 4)
3FFE
3FFE
3FFE
4064 t
3FFE
CYC
3FFE
NEW
PCH
3FFE
3FFF
NEW
PCL
3FFE
NEW PC
CODE
OP
3FFE
NEW
3.3-Vdc Control Timing
PCH
3FFF
NEW
PCL
101