MCHC908RF2CFAE Freescale Semiconductor, MCHC908RF2CFAE Datasheet - Page 19

• Manufacturer Part Number: MCHC908RF2CFAE
• Description: IC MCU W/UHF TX 2K FLASH 32LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCHC908RF2CFAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: LVD, POR, PWM, RF Mod
• Number Of I /o: 12
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

1.4.2 Oscillator Pins (OSC1 and OSC2)
1.4.3 External Reset (RST)
1.4.4 External Interrupt Pin (IRQ)
1.4.5 Port A Input/Output Pins (PTA7, PTA6/KBD6–PTA1/KBD1, and PTA0)
1.4.6 Port B Input/Output Pins (PTB3/TCLK, PTB2/TCH0, PTB1, and PTB0/MCLK)
MC68HC908RF2 — Rev. 4.0
MOTOROLA
The OSC1 and OSC2 pins are the connections to an external clock source or
crystal/ceramic resonator.
A logic 0 on the RST pin forces the MCU to a known startup state. RST is
bidirectional, allowing a reset of the entire system. It is driven low when any internal
reset source is asserted.
The RST pin contains an internal pullup resistor.
For additional information, see
IRQ is an asynchronous external interrupt pin.
The IRQ pin contains an internal pullup resistor.
Port A is an 8-bit special function port that shares its pins with the keyboard
interrupt.
Six port A pins (PTA6–PTA1) can be programmed to serve as an external interrupt.
Once enabled, that pin will contain an internal pullup resistor.
All port A pins are high-current sink pins.
Port B is a 4-bit, general-purpose, bidirectional I/O port, with some of its pins
shared with the timer (TIM) module.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Note: Component values shown represent typical applications.
Figure 1-3. Power Supply Bypassing
General Description
V
DD
V
DD
Section 10. System Integration Module
C
0.1 µF
C
MCU
Bypass
+
Bulk
V
SS
General Description
Pin Assignments
Data Sheet
(SIM).
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