S912XET512J3VALR Freescale Semiconductor, S912XET512J3VALR Datasheet - Page 499
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S912XET512J3VALR
Manufacturer Part Number
S912XET512J3VALR
Description
16-bit Microcontrollers - MCU 16 BIT,512K FLASH
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEG128J2MAL.pdf
(1324 pages)
Specifications of S912XET512J3VALR
Rohs
yes
Core
HCS12X
Processor Series
MC9S12XE
Data Bus Width
16 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
512 KB
Data Ram Size
32 KB
On-chip Adc
Yes
Operating Supply Voltage
3.13 V to 5.5 V
Operating Temperature Range
- 40 C to + 105 C
Package / Case
LQFP-112
Mounting Style
SMD/SMT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
S912XET512J3VALR
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- Current page: 499 of 1324
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Chapter 12
Pierce Oscillator (S12XOSCLCPV2)
12.1
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.
12.1.1
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.
12.1.2
Two modes of operation exist:
The oscillator mode selection is described in the Device Overview section, subsection Oscillator
Configuration.
Freescale Semiconductor
Revision
Number
V01.05
V02.00
•
•
•
•
•
•
•
1. Loop controlled Pierce (LCP) oscillator
2. External square wave mode featuring also full swing Pierce (FSP) without internal bias 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 in loop controlled Pierce mode.
Low power consumption:
— Operates from 1.8 V (nominal) supply
— Amplitude control limits power
Clock monitor
Introduction
Features
Modes of Operation
04 Aug 2006
19 Jul 2006
Revision
Date
Sections
Affected
MC9S12XE-Family Reference Manual Rev. 1.25
DDPLL
Table 12-1. Revision History
- All xclks info was removed
- Incremented revision to match the design system spec revision
supply rail (1.8 V nominal) and require the minimum number
Description of Changes
499
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