MC68HRC908JK3CP Freescale Semiconductor, MC68HRC908JK3CP Datasheet - Page 149

• Manufacturer Part Number: MC68HRC908JK3CP
• Description: IC MCU FLASH 8B 8MHZ RC 4K 20DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HRC908JK3CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 15
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 12x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Connectivity: -

12.1 Contents
12.2 Introduction
MC68H(R)C908JL3
Freescale Semiconductor
Technical Data — MC68H(R)C908JL3
NOTE:
—
Rev. 1.1
12.2
12.3
12.4
12.4.1
12.4.2
12.5
12.5.1
12.5.2
12.6
12.6.1
12.6.2
12.6.3
Twenty three bidirectional input-output (I/O) pins form three parallel
ports. All I/O pins are programmable as inputs or outputs.
Connect any unused I/O pins to an appropriate logic level, either V
V
operation, termination reduces excess current consumption and the
possibility of electrostatic damage.
SS
. Although the I/O ports do not require termination for proper
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Port A Data Register (PTA) . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Port D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Data Direction Register A (DDRA) . . . . . . . . . . . . . . . . . . . 150
Port A Input Pull-up Enable Register (PTAPUE) . . . . . . . . 151
Port B Data Register (PTB) . . . . . . . . . . . . . . . . . . . . . . . . 153
Data Direction Register B (DDRB) . . . . . . . . . . . . . . . . . . . 153
Port D Data Register (PTD) . . . . . . . . . . . . . . . . . . . . . . . . 155
Data Direction Register D (DDRD). . . . . . . . . . . . . . . . . . . 156
Port D Control Register (PDCR). . . . . . . . . . . . . . . . . . . . . 157
I/O Ports
Section 12. I/O Ports
Technical Data
DD
147
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