參數(shù)資料
型號(hào): MAXQ7670ATL+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 20/38頁(yè)
文件大?。?/td> 0K
描述: IC MCU W/10BIT ADC 40TQFN-EP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
系列: MAXQ®
核心處理器: RISC
芯體尺寸: 16-位
速度: 16MHz
連通性: CAN,SPI
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 7
程序存儲(chǔ)器容量: 64KB(32K x 16)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 1K x 16
電壓 - 電源 (Vcc/Vdd): 2.25 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 40-WFQFN 裸露焊盤(pán)
包裝: 帶卷 (TR)
MAXQ7670
Microcontroller with 10-Bit ADC,
PGA, 64KB Flash, and CAN Interface
______________________________________________________________________________________
27
application code to store data when context switching
(e.g., during a call or an interrupt). Storing and retriev-
ing data is executed through the PUSH, POP, and POPI
instructions.
The incorporation of flash memory allows device repro-
gramming, eliminating the expense of discarding one-
time programmable devices during development and
field upgrades (see Figure 13 for the flash memory sec-
tor maps).
A 16-word key protects the flash memory from access
by unauthorized individuals. Without supplying the 16-
word key, the password lock (PWL) bit in the SC regis-
ter remains set, and the utility ROM is inaccessible.
Supplying the 16-word key makes the utility ROM trans-
parent. The password-unlock command is issued
through the TAP interface. The 16-word password is
compared to the password in the program space to
determine its validity.
Enabling a pseudo-Von Neumann memory map places
the utility ROM, code, and data memory into a single
contiguous memory map. Use this mapping scheme for
applications that require dynamic program modification
or unique memory configurations.
EXECUTING
FROM
PROGRAM
SPACE
DATA SPACE
(WORD MODE)
1024 x 16
DATA RAM
4K x 16
UTILITY ROM
32K x 16
PROGRAM
FLASH
FFFFh
A3FFh
7FFFh
0000h
A400h
A000h
8FFFh
8000h
8FFFh
8000h
03FFh
0000h
FFFFh
7FFFh
0400h
9000h
DATA SPACE
(BYTE MODE)
8K x 8
UTILITY ROM
2048 x 8
DATA RAM
FFFFh
7FFFh
0400h
03FFh
0000h
9000h
8FFFh
8000h
1024 x 16
DATA RAM
4K x 16
UTILITY ROM
Figure 12. MAXQ7670 Memory Map
32K x 16
PROGRAM
FLASH
7FFFh
0000h
1 PAGE = 256 WORDS
PAGE 127
PAGE 126
PAGE 125
PAGE 2
PAGE 1
PAGE 0
Figure 13. Flash Memory Sector Maps
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