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参数资料
| 型号： | STPCC0175BTI3 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 75 MHz, MICROPROCESSOR, PBGA388 |
| 封装： | PLASTIC, BGA-388 |
| 文件页数： | 11/47页 |
| 文件大小： | 747K |
| 代理商： | STPCC0175BTI3 |
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PIN DESCRIPTION
19/47
Issue 1.6
request pins. They indicate to the PCI
arbiter that the external agents require
use of the bus.
PCI_GNT#[2:0]
PCI Grant. These pins
indicate that the PCI bus has been
granted master, requesting it on its
PCI_REQ#.
3.2.6.
ISA/IDE COMBINED ADDRESS/DATA
LA[23]/SCS3#
Unlatched Address (ISA)/
Secondary Chip Select (IDE). This pin
has two functions, depending on whether
the ISA bus is active or the IDE bus is
active.
When the ISA bus is active, this pins is
ISA Bus unlatched address bit 23 for 16-
bit devices. When ISA bus is accessed
by any cycle initiated from PCI bus, this
pin is in output mode. When an ISA bus
master owns the bus, this pins is in input
mode.
When the IDE bus is active, this signals is
used as the active high secondary slave
IDE chip select signal. This signal is to be
externally NANDed with the ISAOE#
signal before driving the IDE devices to
guarantee it is active only when ISA bus
is idle.
LA[22]/SCS1#
Unlatched Address (ISA)/
Secondary Chip Select (IDE)
This pin has two functions, depending on
whether the ISA bus is active or the IDE
bus is active.
When the ISA bus is active, this pins is
ISA Bus unlatched address bit 22 for 16-
bit devices. When ISA bus is accessed
by any cycle initiated from PCI bus, this
pin is in output mode. When an ISA bus
master owns the bus, this pins is in input
mode.
When the IDE bus is active, this signals is
used as the active high secondary slave
IDE chip select signal. This signal is to be
externally ANDed with the ISAOE# signal
before
driving
the
IDE
devices
to
guarantee it is active only when ISA bus
is idle.
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相关代理商/技术参数 |
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| STPCC0180BTC3 | 功能描述:微处理器 - MPU 80MHz x86 Embedded RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
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