參數(shù)資料
型號(hào)： MAXQ7666BATM+
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 微控制器/微處理器
英文描述： RISC MICROCONTROLLER, QCC48
封裝： 7 X 7 MM, ROHS COMPLAINT, TQFN-48
文件頁數(shù)： 28/49頁
文件大小： 2130K
代理商： MAXQ7666BATM+
MAXQ7666
16-Bit, RISC, Microcontroller-Based,
Smart Data-Acquisition System
34
_______________________________________________________________________________________
(8K x 16)
PROGRAM FLASH
OR MASKED ROM
PROGRAM
SPACE
EXECUTING
FROM
DATA SPACE
(BYTE MODE)
DATA SPACE
(WORD MODE)
0000h
1FFFh
4K x 16
UTILITY ROM
8FFFh
256 x 16
DATA SRAM
256 x 16
DATA FLASH
A000h
8000h
A0FFh
40FFh
4000h
8K x 8
UTILITY ROM
9FFFh
8000h
512 x 8
DATA SRAM
0000h
01FFh
4K x 16
UTILITY ROM
8FFFh
8000h
256 x 16
DATA SRAM
0000h
00FFh
16KB
Figure 14. MAXQ7666 Memory Map
Utility ROM
The utility ROM is an 8KB (4K x 16) block of internal
ROM memory that defaults to a starting address of
8000h. The utility ROM consists of subroutines called
from application software. These include:
In-system programming (bootstrap loader) over JTAG
In-circuit debug routines
User-callable routines for in-application flash pro-
gramming and fast table lookup
Following any reset, execution begins in the utility ROM.
The ROM software determines whether the program
execution should immediately jump to location 0000h,
the start of user-application code, or to one of the spe-
cial routines mentioned. Access routines within the utili-
ty ROM as subroutines by the application software.
More information on the utility ROM contents is con-
tained in the
MAXQ7665/MAXQ7666 User’s Guide.
Some applications require protection against unautho-
rized viewing of program code memory. For these
applications, access to in-system programming, in-
application programming, or in-circuit debugging func-
tions is prohibited until a password is supplied. The
password is defined as the 16 words of physical pro-
gram memory at addresses 0010h to 001Fh.
A single password lock (PWL) bit is implemented in the
SC register. When the PWL is set to one (POR default),
the password is required to access the utility ROM,
including in-circuit debug and in-system programming
routines that allow reading or writing of internal memo-
ry. When PWL is cleared to zero, these utilities are fully
accessible without the password. The password is
automatically set to all ones following a mass erase.
When the password is all ones or all zeros, the PWL bit
clears to zero.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAXQ7666BATM+ 功能描述:16位微控制器 - MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT
MAXQ7666BATM+T 功能描述:16位微控制器 - MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT
MAXQ7667 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:16-Bit, RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System
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(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) 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(fēng)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(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) 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(fēng)格:SMD/SMT
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