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參數資料
| 型號： | MAXQ7667AACM+ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP48 |
| 封裝： | 7 X 7 MM, ROHS COMPLIANT, LQFP-48 |
| 文件頁數： | 1/39頁 |
| 文件大小： | 582K |
| 代理商： | MAXQ7667AACM+ |
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General Description
The MAXQ7667 smart system-on-a-chip (SoC) provides a
time-of-flight ultrasonic distance-measuring solution. The
device is optimized for applications involving large dis-
tance measurement with weak input signals or multiple
target identification. The MAXQ7667 features high signal-
to-noise ratio achieved by combining flexible electronics
with the intelligence necessary to optimize each function
as environmental and target conditions change.
An integrated burst signal generator and echo reception
components process ultrasonic signals between 25kHz
and 100kHz. Echo reception components include a pro-
grammable gain low-noise amplifier (LNA), a 16-bit
sigma-delta ADC to digitize the received echo signals,
and digital signal processing (DSP). DSP limits noise
with a bandpass filter, and creates an echo envelope
through demodulation and lowpass filtering. Input
referred noise is a low 0.7VRMS. A programmable
phase-locked loop (PLL) frequency synthesizer supplies
the reference frequency for the burst generator and the
clock for the echo receiver’s digital filter. An embedded
16-bit MAXQ20 microcontroller (C) controls all the pre-
ceding functions.
The C optimizes the burst frequency and reception
frequency for each transmission at any temperature.
The MAXQ7667 achieves smart sensing by monitoring
the echo signals and then actively changing the trans-
mitted and received parameters to obtain optimum
results. Digital filtering and burst synthesis do not
require CPU intervention. This leaves all the CPU power
available for echo optimization, communication, diag-
nostics, and additional signal processing.
The MAXQ7667 operates with three different power
supply voltages: +5V, +3.3V, and +2.5V. Two internal
linear regulators allow operation from a single +5V sup-
ply when three external power supplies are not avail-
able. Alternatively, the MAXQ7667 can control an
external pass transistor to allow operation from a single
supply voltage of +8V to +65V or more, depending on
the external component tolerance. The device is avail-
able in a 48-pin LQFP package and is specified to
operate from -40°C to +125°C.
Applications
Features
Smart Analog Peripherals
Dedicated Ultrasonic Burst Generator
Echo Receiving Path (Includes LNA, Sigma-
Delta ADC)
5-Channel, 12-Bit SAR ADC with 250ksps
Sampling Rate
Internal Bandgap Voltage Reference for the
ADCs (Also Accepts External Voltage Reference)
Timer/Digital I/O Peripherals
High-Performance, Low-Power, 16-Bit RISC Core
Program and Data Memory
Crystal/Clock Module
16 x 16 Hardware Multiplier with 48-Bit
Accumulator, Single Clock Cycle
Power-Management Module
JTAG Interface
Universal Asynchronous Receiver-Transmitter
(UART)
Local Interconnect Network (LIN)
MAXQ7667
16-Bit, RISC, Microcontroller-Based,
Ultrasonic Distance-Measuring System
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
19-4598; Rev 0; 4/09
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, go to: ww.maxim-ic.com/errata.
Pin Configuration appears at end of data sheet.
See the Detailed Features section for complete list of features.
Note: All devices are specified over the -40°C to +125°C oper-
ating temperature range.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
PART
PIN-PACKAGE
RAM
(KB)
FLASH
(KB)
MAXQ7667AACM+
48 LQFP
4
32
Automotive Parking
Vehicle Security
Industrial Processing
Automation
Handheld Devices
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAXQ7667AACM/V+ | 功能描述:16位微控制器 - MCU 16-Bit RISC MCU-Bsd Ultrasonic DMS RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT |
| MAXQ7667AACM/V+T | 功能描述:16位微控制器 - MCU 16-Bit RISC MCU-Bsd Ultrasonic DMS RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT |
| MAXQ7667AACM+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAXQ7667EVKIT | 功能描述:開發板和工具包 - 其他處理器 RoHS:否 制造商:Freescale Semiconductor 產品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| MAXQ7667EVKIT+ | 功能描述:開發板和工具包 - 其他處理器 MAXQ7667 Eval Kit RoHS:否 制造商:Freescale Semiconductor 產品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
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