MC68HC908GR8CFA Freescale Semiconductor, MC68HC908GR8CFA Datasheet - Page 211

• Manufacturer Part Number: MC68HC908GR8CFA
• Description: IC MCU FLSH 8BIT8MHZ 7.5K32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR8CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• 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: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

MC68HC908GR8 — Rev 4.0
MOTOROLA
PTAPUE Bit
NOTES:
1. X = Don’t care
2. Hi-Z = High impedance
3. Writing affects data register, but does not affect input.
4. I/O pin pulled up to V
X
1
0
DDRA Bit
0
0
1
DD
When bit DDRAx is a logic 1, reading address $0000 reads the PTAx
data latch. When bit DDRAx is a logic 0, reading address $0000 reads
the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
the operation of the port A pins.
by internal pullup device
PTA Bit
Freescale Semiconductor, Inc.
X
X
X
For More Information On This Product,
(1)
Table 16-2. Port A Pin Functions
PTAPUEx
READ DDRA ($0004)
WRITE DDRA ($0004)
WRITE PTA ($0000)
READ PTA ($0000)
I/O Pin Mode
Input, V
Input, Hi-Z
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Input/Output Ports (I/O)
Output
DD
Figure 16-4. Port A I/O Circuit
RESET
(4)
(2)
V
DD
INTERNAL
PULLUP
DEVICE
Accesses to DDRA
DDRA3–DDRA0
DDRA3–DDRA0
DDRA3–DDRA0
Read/Write
DDRAx
PTAx
PTA3–PTA0
Table 16-2
Read
Pin
Pin
Accesses to PTA
Input/Output Ports (I/O)
summarizes
PTA3–PTA0
PTA3–PTA0
Technical Data
PTA3–PTA0
Write
)
)
Port A
PTAx
211
(3
(3