參數(shù)資料
型號(hào)： MAX1441GUP/V+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 25/41頁(yè)
文件大?。?/td> 0K
描述： IC PROXMITY SENSOR 2CH 20-TSSOP
其它有關(guān)文件： Automotive Product Guide
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 74
類型： 觸控式傳感器
輸入類型： 數(shù)字
輸出類型： 數(shù)字
接口： JTAG，串行
電流 - 電源： 100µA
安裝類型： 表面貼裝
封裝/外殼： 20-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 20-TSSOP
包裝： 管件
MAX1441
Automotive, Two-Channel Proximity and
Touch Sensor
31
Memory Organization
There are three distinct memory areas in the IC's regis-
ters, program memory, and data memory. All memories
are located on-chip.
Data memory is realized by SRAM memory, which allows
both read and write access; program memory is imple-
mented with nonvolatile Flash memory. The user applica-
tion codes are programmed using a bootstrap loader.
The bootstrap loader program is located in the utility code
space. From a user perspective, the utility code segment
is a program segment in the program memory map.
As illustrated in Figure 3, the device incorporates 4KB
program memory, 4KB Utility ROM, and 128 bytes SRAM
data memory.
Data memory is contiguous from 0000h to 03Fh words.
Programmable memory begins at address 0000h and is
contiguous through a maximum of 7FFh words.
The device also incorporates a soft stack using data
RAM for the stack.
The MMU provides access controls for program and
data memories. The built-in bootstrap loader is used to
support Flash memory erase/program operations.
Register Space
Two of the register modules (M0/M1) are used by the
device.
Data Memory
On-chip data memory begins at address 0000h and is
contiguous through the internal data memory space to
03Fh words (128 bytes).
Data memory mapping and access control are handled
by the MMU. Read/write access to the data memory can
be in word or in byte.
Program Memory
The program memory is implemented using nonvola-
tile Flash memory. Flash memory provides in-system
programming capability but this memory technology
requires erase operation before a write operation and the
time required to carry out write access is extremely long.
Write access to nonvolatile memory is actually performed
by utility ROM code for the device.
Figure 3. Memory Map
SFRs
00h
06h
07h
REGISTERS
SPRs
0Fh
1Fh
FFh
0000h
003Fh
007Fh
07FFh
8000h
87FFh
FFFFh
PROGRAM
SPACE
2K x 16
UTILITY CODE
2K x 16
PROGRAM
MEMORY
64 x 16
DATA RAM
DATA
SPACE
WBSn = 1
FFFFh
WBSn = 0
FFFFh
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1441IUP+ 功能描述:電容觸摸傳感器 RoHS:否 制造商:Microchip Technology 電源電壓: 通道數(shù)量: 封裝 / 箱體: 尺寸: 溫度范圍:
MAX1441IUP+T 功能描述:電容觸摸傳感器 RoHS:否 制造商:Microchip Technology 電源電壓: 通道數(shù)量: 封裝 / 箱體: 尺寸: 溫度范圍:
MAX1444EHJ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1444EHJ/V+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC ANALOG TO DIGITAL CONVERTER RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1444EHJ/V+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 40Msps 3.0V Low-Power ADC with Internal Reference RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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