參數(shù)資料
型號(hào): MCP2210-I/MQ
廠商: Microchip Technology
文件頁(yè)數(shù): 78/82頁(yè)
文件大?。?/td> 0K
描述: IC CONVERTER USB-PCI 20-QFN
產(chǎn)品培訓(xùn)模塊: MCP2210 Evaluation Kit
標(biāo)準(zhǔn)包裝: 73
應(yīng)用: 帶 GPIO 的 USB 至 SPI 連接器
接口: SPI,USB
電源電壓: 3.3 V ~ 5.5 V
封裝/外殼: 20-VQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 20-QFN(5x5)
包裝: 管件
安裝類型: 表面貼裝
MCP2210
DS22288A-page 8
2011 Microchip Technology Inc.
1.7
EEPROM Module
The EEPROM module is a 256-byte array of nonvola-
tile memory. The memory locations are accessed for
read/write operations solely via USB host commands.
The memory cells for data EEPROM are rated to
endure thousands of erase/write cycles, up to 100K for
EEPROM.
Data retention without refresh is conservatively
estimated to be greater than 40 years.
1.8
Reset/POR
1.8.1
RESET PIN
The RST pin provides a method for triggering an
external Reset of the device. A Reset is generated by
holding the pin low. MCP2210 has a noise filter in the
Reset path which detects and ignores small pulses.
1.8.2
POR
A POR pulse is generated on-chip whenever VDD rises
above a certain threshold. This allows the device to
start in the initialized state when VDD is adequate for
operation.
To take advantage of the POR circuitry, tie the RST pin
through a resistor (1 k
to 10 k) to VDD. This will
eliminate external RC components usually needed to
create a POR delay.
When the device starts normal operation (i.e., exits the
Reset condition), the device operating parameters
(voltage, frequency, temperature, etc.) must be met to
ensure operation. If these conditions are not achieved,
the device must be held in Reset until the operating
conditions are met.
1.9
Oscillator
The input clock must be 12 MHz to provide the proper
frequency for the USB module. USB full-speed is
nominally 12 Mb/s. The clock input accuracy is ±0.25%
(2,500 ppm maximum).
FIGURE 1-5:
QUARTZ CRYSTAL
OPERATION
FIGURE 1-6:
CERAMIC RESONATOR
OPERATION
Quartz Crystal
12 MHz
OSC1
OSC2
RS(1)
RF(2)
MCP2210
Note 1: A series resistor (RS) may be required for
quartz crystals with high drive level.
2: The value of RF is typically between 2 M to
10 M
..
Example: muRata
CSTCE12M0G15L
OSC1
OSC2
Resonator
12 MHz
MCP2210
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相關(guān)代理商/技術(shù)參數(shù)
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MCP2210-I-SO 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:USB-to-SPI Protocol Converter with GPIO (Master Mode)
MCP2210-I-SS 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:USB-to-SPI Protocol Converter with GPIO (Master Mode)
MCP2210T-I/MQ 功能描述:USB 接口集成電路 USB to SPI Protocol Converter RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
MCP2210T-I/SO 功能描述:USB 接口集成電路 USB to SPI Protocol Converter RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
MCP2210T-I/SS 功能描述:USB 接口集成電路 USB to SPI Protocol Converter RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20