MC9S12DT256MPVE Freescale Semiconductor, MC9S12DT256MPVE Datasheet - Page 119
MC9S12DT256MPVE
Manufacturer Part Number
MC9S12DT256MPVE
Description
IC MCU 256K FLASH 25MHZ 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.S912XDG128F2MAL.pdf
(1348 pages)
Specifications of MC9S12DT256MPVE
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
256KB (256K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
12K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.25 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
112-LQFP
Processor Series
S12D
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
12 KB
Interface Type
CAN/I2C/SCI/SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
91
Number Of Timers
1
Operating Supply Voltage
5 V to 2.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
M68KIT912DP256
Minimum Operating Temperature
- 40 C
On-chip Adc
2 (8-ch x 10-bit)
No. Of I/o's
91
Eeprom Memory Size
4KB
Ram Memory Size
12KB
Cpu Speed
25MHz
No. Of Timers
1
No. Of Pwm Channels
8
Digital Ic Case Style
LQFP
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12DT256MPVE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 3
Pierce Oscillator (S12XOSCLCPV1)
3.1
The Pierce oscillator (XOSC) module provides a robust, low-noise and low-power clock source. The
module will be operated from the V
of external components. It is designed for optimal start-up margin with typical crystal oscillators.
3.1.1
The XOSC will contain circuitry to dynamically control current gain in the output amplitude. This ensures
a signal with low harmonic distortion, low power and good noise immunity.
3.1.2
Two modes of operation exist:
Freescale Semiconductor
•
•
•
•
•
•
•
1. Loop controlled Pierce oscillator
2. External square wave mode featuring also full swing Pierce without internal feedback resistor
High noise immunity due to input hysteresis
Low RF emissions with peak-to-peak swing limited dynamically
Transconductance (gm) sized for optimum start-up margin for typical oscillators
Dynamic gain control eliminates the need for external current limiting resistor
Integrated resistor eliminates the need for external bias resistor
Low power consumption:
— Operates from 2.5 V (nominal) supply
— Amplitude control limits power
Clock monitor
Introduction
Features
Modes of Operation
MC9S12XDP512 Data Sheet, Rev. 2.21
DDPLL
supply rail (2.5 V nominal) and require the minimum number
119
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