MC68HC908SR12CB Freescale Semiconductor, MC68HC908SR12CB Datasheet - Page 317

• Manufacturer Part Number: MC68HC908SR12CB
• Description: IC MCU 12K FLASH 8MHZ 42-SDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908SR12CB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI
• Peripherals: LVD, POR, PWM, Temp Sensor
• Number Of I /o: 29
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

18.1 Contents
18.2 Introduction
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
Data Sheet — MC68HC908SR12•MC68HC08SR12
NOTE:
18.2
18.3
18.3.1
18.3.2
18.3.3
18.4
18.4.1
18.4.2
18.5
18.5.1
18.5.2
18.5.3
18.6
18.6.1
18.6.2
Thirty-one (31) bidirectional input-output (I/O) pins form four 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Port C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Port D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Port A Data Register (PTA) . . . . . . . . . . . . . . . . . . . . . . . . 320
Data Direction Register A (DDRA) . . . . . . . . . . . . . . . . . . . 321
Port A LED Control Register (LEDA) . . . . . . . . . . . . . . . . . 323
Port B Data Register (PTB) . . . . . . . . . . . . . . . . . . . . . . . . 324
Data Direction Register B (DDRB) . . . . . . . . . . . . . . . . . . . 325
Port C Data Register (PTC) . . . . . . . . . . . . . . . . . . . . . . . . 327
Data Direction Register C (DDRC). . . . . . . . . . . . . . . . . . . 329
Port C LED Control Register (LEDC) . . . . . . . . . . . . . . . . . 330
Port D Data Register (PTD) . . . . . . . . . . . . . . . . . . . . . . . . 331
Data Direction Register D (DDRD). . . . . . . . . . . . . . . . . . . 332
Section 18. Input/Output (I/O) Ports
Input/Output (I/O) Ports
Data Sheet
DD
317
or