- 您现在的位置：买卖IC网 > PDF目录25626 > MCIMX258CVM4 (FREESCALE SEMICONDUCTOR INC) 32-BIT, 400 MHz, MICROPROCESSOR, PBGA400 PDF资料下载
参数资料
| 型号： | MCIMX258CVM4 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 400 MHz, MICROPROCESSOR, PBGA400 |
| 封装： | 17 X 17 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, MAPBGA-400 |
| 文件页数： | 2/154页 |
| 文件大小： | 1498K |
| 代理商： | MCIMX258CVM4 |
第1页当前第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
10
Freescale Semiconductor
NVCC_DRYICE
This is the DryIce power supply output. The supply source is QVDD when the i.MX25 is in run mode.
When i.MX25 is in reduced power mode, the DryIce supply source is the BATT_VDD supply. This pin can
be used to power external DryIce components (external tamper detect, wire-mesh tamper detect). In
order to guarantee the power-loss protection feature which guarantees that RTC and/or secure keys be
maintained after power-off an external capacitor no less than 4 F must be connected to this supply output
pin. A 4.7 F capacitor is recommended.
OSC_BYP
The 32 kHz oscillator bypass-control pin. If this signal is pulled down, then OSC32K_EXTAL and
OSC32K_XTAL analog pins should be tied to the external 32.768 kHz crystal circuit. If on the other hand
the signal is pulled up, then the external 32 kHz oscillator output clock must be connected to
OSC32K_EXTAL analog pin, and OSC32K_XTAL can be no connect (NC).
OSC32K_EXTAL
OSC32K_XTAL
These analog pins are connected to an external 32 kHz CLK circuit depending on the state of OSC_BYP
pin (see the description of OSC_BYP under the preceding bullet). The 32 kHz reference CLK is required
for normal operation.
POWER_FAIL
An interrupt from PMIC, which should be connected to a low-battery detection circuit. This signal is
internally connected to an on-chip 100 k
Ω pull-down device. If there is no low-battery detection, then users
can tie this pin to GND through a pull-down resistor, or leave the signal as NC. This pin can also be
configured to work as a normal GPIO.
REF
External ADC reference voltage. REF may be tied to GND if the user plans to only use the internally
generated 2.5 V reference supply.
SJC_MOD
Must be externally connected to GND for normal operation. Termination to GND through an external
pull-down resistor (such as 1 k
Ω) is allowed, but the value should be much smaller than the on-chip
100-k
Ω pull-up.
TAMPER_A,
TAMPER _B
DryIce external tamper detect pins, active high. If TAMPER_A or TAMPER_B is connected to
NVCC_DRYICE, then external tampering is detected. These pins can be left unconnected if the DryIce
security features are not being used.
TEST_MODE
For Freescale factory use only. This signal is internally connected to an on-chip pull-down device. Users
must either float this signal or tie it to GND.
UPLL_BYPCLK
Primarily for Freescale factory use. There is no internal on-chip pull-up/down on this pin, so it must be
externally connected to GND or VDD. Aside from factory use, this pin can also be configured (through
muxing) to work as a normal GPIO.
USBPHY1_RREF
Determines the reference current for the USB PHY1 bandgap reference. An external 10 k
Ω 1% resistor to
GND is required.
USBPHY2_DM
USBPHY2_DP
The output impedance of these signals is expected at 10
Ω. It is recommended to also have on-board 33 Ω
series resistors (close to the pins).
Table 4. Signal Considerations (continued)
Signal
Description
相关PDF资料 |
PDF描述 |
|---|---|
| MD80C154-36/883D | 8-BIT, 36 MHz, MICROCONTROLLER, CDIP40 |
| MQ80C52TXXX-16P883D | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44 |
| MC80C52XXX-30/883:D | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CDIP40 |
| MD80C154-25/883 | 8-BIT, 25 MHz, MICROCONTROLLER, CDIP40 |
| MD80C154-20P883 | 8-BIT, 20 MHz, MICROCONTROLLER, CDIP40 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCIMX25LPDK | 制造商:Freescale Semiconductor 功能描述:PRODUCT DEVELOPMENT KIT FOR THE I MX25 APPLICATIONS PROCESSO - Boxed Product (Development Kits) 制造商:Freescale Semiconductor 功能描述:KIT DEV I.MX25 FOR LINUX 制造商:Freescale 功能描述:Product Development Kit For The I.MX25 Applications Processor |
| MCIMX25LPDKJ | 功能描述:开发板和工具包 - ARM HARDWARE RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
| MCIMX25LPDKJ | 制造商:Freescale Semiconductor 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE |
| MCIMX25PDKCPUJ | 功能描述:开发板和工具包 - ARM CPU BD, MX25, LINUXJ RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
| MCIMX25WPDK | 功能描述:开发板和工具包 - ARM MCIMX25 PDK ForLINUX RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
发布紧急采购，3分钟左右您将得到回复。