mc68hc908jb16 Freescale Semiconductor, Inc, mc68hc908jb16 Datasheet - Page 38

• Manufacturer Part Number: mc68hc908jb16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

General Description
Technical Data
38
CGMOUT1
CGMOUT2
CGMXFC1
CGMXFC2
PTA0/KBA0
PTA7/KBA7
PIN NAME
V
V
V
V
V
REGA0
REGA1
OSC1
OSC2
V
SSA0
SSA1
RST
DDA
V
V
IRQ
REG
DD
SS
:
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
Power supply.
Power supply ground.
3.3V regulated output from MCU.
Reset input, active low.
With internal pull-up and schmitt trigger input.
External IRQ pin; with programmable internal pull-up and
schmitt trigger input.
Used for mode entry selection.
Crystal oscillator input.
Crystal oscillator output; inverting of OSC1 signal.
Analog power supply.
Analog power supply ground.
3.3V regulated output from MCU.
3.3V input for CGM2.
CGM1 external filter capacitor connection.
CGM2 external filter capacitor connection.
CGM1 clock output.
CGM2 clock output.
8-bit general purpose I/O port.
Pins as keyboard interrupts, KBA0–KBA7.
Each pin has programmable internal pullup when configured
as input.
Summary of the pin functions are provided in
Table 1-1. Summary of Pin Functions
PIN DESCRIPTION
General Description
Table
IN/OUT
IN/OUT
IN/OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
MC68HC908JB16
IN
IN
IN
IN
IN
IN
IN
IN
Freescale Semiconductor
1-1.
V
V
V
REGA0
VOLTAGE
4.0 to 5.5V
4.0 to 5.5V
REG
REG
V
V
V
V
V
LEVEL
V
V
REGA0
REGA0
REGA0
REGA0
REGA0
V
V
V
V
V
0V
0V
REG
REG
to V
DD
DD
DD
DD
DD
—
(3.3V)
(3.3V)
Rev. 1.1
TST