MC68HC908KX2CP Freescale Semiconductor, MC68HC908KX2CP Datasheet - Page 20

• Manufacturer Part Number: MC68HC908KX2CP
• Description: IC MCU 2K FLASH 8MHZ SCI 16-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908KX2CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

General Description
1.4 Pin Assignments
Figure 1-2
1.4.1 Supply Pins (V
V
Fast signal transitions on MCU pins place high, short-duration current demands on the power supply. To
prevent noise problems, take special care to provide power supply bypassing at the MCU as shown in
Figure
response ceramic capacitors for C
applications that require the port pins to source high-current levels.
20
DD
and V
1-3. Place the bypass capacitors as close to the MCU power pins as possible. Use high-frequency
SS
shows the pin assignments for MC68HC908KX8.
are the power supply and ground pins. The MCU operates from a single power supply.
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 Data Sheet, Rev. 2.1
DD
and V
Figure 1-2. PDIP and SOIC Pin Assignments
Note: Component values shown represent typical applications.
Figure 1-3. Power Supply Bypassing
Bypass
SS
PTA1/KBD1
PTA0/KBD0
PTB0/AD0
PTB1/AD1
PTB2/AD2
PTB3/AD3
)
V
DD
IRQ1
V
V
DD
. C
SS
Bulk
1
2
3
4
5
6
7
8
are optional bulk current bypass capacitors for use in
C
0.1 µF
+
C
Bypass
MCU
Bulk
16
15
14
13
12
11
10
9
V
PTA4/KBD4
PTA3/KBD3/TCH1
PTA2/KBD2/TCH0
PTB4/RxD
PTB5/TxD
PTB6/(OSC1)
PTB7/(OSC2)/RST
DD
V
SS
Freescale Semiconductor