MC68HC705K1 Datasheet, PDF (24/140 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
General Description
MCU
EXTERNAL
CMOS CLOCK
Figure 1-9. External Clock Connections
1.6.3 RESET
A logic 0 on the RESET pin forces the MCU to a known startup state.
See 5.3.2 External Reset for more information.
1.6.4 IRQ/V_PP
The IRQ/V_PP pin has these functions:
• Applying asynchronous external interrupt signals,
see 4.3.2 External Interrupts
• Applying the EPROM/OTPROM programming voltage,
see 9.4 EPROM/OTPROM Programming
1.6.5 PA7–PA0
PA7–PA0 are the pins of port A, a general-purpose, bidirectional I/O
port. See 7.4 Port A.
1.6.6 PB1/OSC3 and PB0
PB1/OSC3 and PB0 are the pins of port B, a general-purpose,
bidirectional I/O port. See 7.5 Port B.
Technical Data
General Description
For More Information On This Product,
Go to: www.freescale.com
MC68HC705K1 — Rev. 2.0