MC68HC05BD3 Datasheet, PDF (22/112 Pages) Motorola, Inc – HCMOS microcontroller

2
PIN NAME
PC6/PWM14/VTTL,
PC7/PWM15/HTTL
40-pin DIP
PIN No.
32, 33
42-pin SDIP
PIN No.
33, 34
DESCRIPTION
These two port C I/O lines are shared with the PWM and Sync Signal
Processor. Configuration for use are set by the Configuration
register 1 ($0A) and Configuration register 2 ($0B).
PD0/SDA,
PD1/SCL
24, 25
25, 26
These two port D I/O lines are shared with the M-Bus lines SDA and
SCL. When configured as M-Bus lines in Configuration
register 2 ($0B), these pins become +5V open-drain pins.
PWM0 to PWM7
3-1, 38-34
3-1, 40-38, 36,
35
These eight pins are dedicated for the 8-bit PWM channel 0 to 7.
HSYNC, VSYNC
39, 40
41, 42
These two pins are for video sync signals input from the host
computer. The polarity of the input signals can either be positive or
negative. These two pins contain internal Schmitt triggers as part of
their inputs to improve noise immunity
2.2
Pin Assignments
PWM2 1
PWM1 2
PWM0 3
RESET 4
VDD 5
VSS 6
XTAL 7
EXTAL 8
PB5 9
PB4 10
PB3 11
PB2 12
PB1 13
PB0 14
IRQ/VPP 15
PA7 16
PA6 17
PA5 18
PA4 19
PA3 20
40 VSYNC
39 HSYNC
38 PWM3
37 PWM4
36 PWM5
35 PWM6
34 PWM7
33 PC7/PWM15/HTTL
32 PC6/PWM14/VTTL
31 PC5/PWM13
30 PC4/PWM12
29 PC3/PWM11
28 PC2/PWM10
27 PC1/PWM9
26 PC0/PWM8
25 PD1/SCL
24 PD0/SDA
23 PA0
22 PA1
21 PA2
Figure 2-1 Pin Assignment for 40-pin DIP Package
MOTOROLA
2-2
PIN DESCRIPTION AND I/O PORTS
TPG
MC68HC05BD3