MC9S12DB128CPVE Freescale Semiconductor, MC9S12DB128CPVE Datasheet - Page 19

• Manufacturer Part Number: MC9S12DB128CPVE
• Description: IC MCU 128K FLASH 25MHZ 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12DB128CPVE

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: CAN, I²C, SCI, SPI
• Peripherals: PWM, WDT
• Number Of I /o: 91
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.25 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Controller Family/series: HCS12/S12X
• No. Of I/o's: 91
• Eeprom Memory Size: 2048Byte
• Ram Memory Size: 8192Byte
• Cpu Speed: 25MHz
• Rohs Compliant: Yes
• Package: 112LQFP
• Family Name: HCS12
• Maximum Speed: 50 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 91
• Interface Type: CAN/SCI/SPI
• On-chip Adc: 2(8-chx10-bit)
• Number Of Timers: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Section 1 Introduction
1.1 Overview
The MC9S12DT128B microcontroller unit (MCU) is a 16-bit device composed of standard on-chip
peripherals including a 16-bit central processing unit (HCS12 CPU), 128K bytes of Flash EEPROM, 8K
bytes of RAM, 2K bytes of EEPROM, two asynchronous serial communications interfaces (SCI), two
serial peripheral interfaces (SPI), an 8-channel IC/OC enhanced capture timer, two 8-channel, 10-bit
analog-to-digital converters (ADC), an 8-channel pulse-width modulator (PWM), a digital Byte Data Link
Controller (BDLC), 29 discrete digital I/O channels (Port A, Port B, Port K and Port E), 20 discrete digital
I/O lines with interrupt and wakeup capability, three CAN 2.0 A, B software compatible modules
(MSCAN12), a Byteflight module and an Inter-IC Bus. The MC9S12DT128B has full 16-bit data paths
throughout. However, the external bus can operate in an 8-bit narrow mode so single 8-bit wide memory
can be interfaced for lower cost systems. The inclusion of a PLL circuit allows power consumption and
performance to be adjusted to suit operational requirements.
1.2 Features
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HCS12 Core
– 16-bit HCS12 CPU
– MEBI (Multiplexed External Bus Interface)
– MMC (Module Mapping Control)
– INT (Interrupt control)
– BKP (Breakpoints)
– BDM (Background Debug Mode)
CRG (Clock and Reset Generator)
– Choice of low current Colpitts oscillator or standard Pierce Oscillator
– PLL
– COP watchdog
– real time interrupt
– clock monitor
8-bit and 4-bit ports with interrupt functionality
i. Upward compatible with M68HC11 instruction set
ii. Interrupt stacking and programmer’s model identical to M68HC11
iii. 20-bit ALU
iv. Instruction queue
v. Enhanced indexed addressing
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
MC9S12DT128B Device User Guide — V01.09