参数资料
型号: PSD814220MIT
厂商: 意法半导体
英文描述: Flash In-System Programmable ISP Peripherals For 8-bit MCUs
中文描述: Flash在系统可编程ISP的外设的8位微控制器
文件页数: 29/110页
文件大小: 1737K
代理商: PSD814220MIT
29/110
PSD813F2, PSD833F2, PSD834F2, PSD853F2, PSD854F2
SRAM
The SRAM is enabled when SRAM Select (RS0)
from the DPLD is High. SRAM Select (RS0) can
contain up to two product terms, allowing flexible
memory mapping.
The SRAM can be backed up using an external
battery. The external battery should be connected
to Voltage Stand-by (V
STBY
, PC2). If you have an
external battery connected to the PSD, the con-
tents of the SRAM are retained in the event of a
power loss. The contents of the SRAM are re-
tained so long as the battery voltage remains at
2 V or greater. If the supply voltage falls below the
battery voltage, an internal power switch-over to
the battery occurs.
PC4 can be configured as an output that indicates
when power is being drawn from the external bat-
tery. Battery-on Indicator (VBATON, PC4) is High
with the supply voltage falls below the battery volt-
age and the battery on Voltage Stand-by (V
STBY
,
PC2) is supplying power to the internal SRAM.
SRAM Select (RS0), Voltage Stand-by (V
STBY
,
PC2) and Battery-on Indicator (VBATON, PC4)
are all configured using PSDsoft Express Configu-
ration.
相关PDF资料
PDF描述
PSD814220MT Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD814270JIT Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD814270JT Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD814270MIT Resonant-Mode Power Supply Controllers 16-SOIC 0 to 70
PSD814270MT Resonant-Mode Power Supply Controllers 16-SOIC 0 to 70
相关代理商/技术参数
参数描述
PSD833F2-90J 功能描述:CPLD - 复杂可编程逻辑器件 5.0V 1M 90ns RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100
PSD833F2-90JI 功能描述:SPLD - 简单可编程逻辑器件 5.0V 1M 90ns RoHS:否 制造商:Texas Instruments 逻辑系列:TICPAL22V10Z 大电池数量:10 最大工作频率:66 MHz 延迟时间:25 ns 工作电源电压:4.75 V to 5.25 V 电源电流:100 uA 最大工作温度:+ 75 C 最小工作温度:0 C 安装风格:Through Hole 封装 / 箱体:DIP-24
PSD833F2-90M 功能描述:SPLD - 简单可编程逻辑器件 5.0V 1M 90ns RoHS:否 制造商:Texas Instruments 逻辑系列:TICPAL22V10Z 大电池数量:10 最大工作频率:66 MHz 延迟时间:25 ns 工作电源电压:4.75 V to 5.25 V 电源电流:100 uA 最大工作温度:+ 75 C 最小工作温度:0 C 安装风格:Through Hole 封装 / 箱体:DIP-24
PSD833F2-90MI 功能描述:CPLD - 复杂可编程逻辑器件 5.0V 1M 90ns RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100
PSD834F2-15M 制造商:STMicroelectronics 功能描述:Flash In-System Programmable Peripherals 52-Pin PQFP