MC68HC908GR8CDW Freescale Semiconductor, MC68HC908GR8CDW Datasheet - Page 31

• Manufacturer Part Number: MC68HC908GR8CDW
• Description: IC MCU 8K FLASH 8MHZ 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR8CDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 17
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

1.6 Pin Functions
1.6.1 Power Supply Pins (V
MC68HC908GR8 — Rev 4.0
MOTOROLA
Descriptions of the pin functions are provided here.
V
from a single power supply.
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
shows. Place the C1 bypass capacitor as close to the MCU as possible.
Use a high-frequency-response ceramic capacitor for C1. C2 is an
optional bulk current bypass capacitor for use in applications that require
the port pins to source high current levels.
NOTE: Ports PTB4, PTB5, PTC0, and PTC1 are available only with the QFP.
DD
Freescale Semiconductor, Inc.
and V
For More Information On This Product,
DD
and V
SS
Go to: www.freescale.com
Figure 1-3. DIP And SOIC Pin Assignments
are the power supply and ground pins. The MCU operates
PTD3/SPSCK
PTD4/T1CH0
SS
General Description
PTD1/MISO
PTD2/MOSI
PTE1/RxD
PTE0/TxD
)
CGMXFC
PTD0/SS
OSC2
OSC1
RST
IRQ
V
V
DD
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
V
PTA3/KBD3
PTA2/KBD2
PTA1/KBD1
PTA0/KBD0
V
V
PTB3/AD3
PTB2/AD2
PTB1/AD1
PTB0/AD0
PTD6/T2CH0
PTD5/T1CH1
SSA
DDA
SSAD
DDAD
/V
/V
REFL
REFH
General Description
Figure 1-4
Technical Data
Pin Functions
31