PCI2250 32 位 33MHz PCI 至 PCI 桥接器压缩 PCI 热插拔 4 主控方
The Texas Instruments PCI2250 PCI-to-PCI bridge provides a high performance connection path between two peripheral component interconnect (PCI) buses. Transactions occur between masters on one PCI bus and targets on another PCI bus, and the PCI2250 allows bridged transactions to occur concurrently on both buses. The bridge supports burst-mode transfers to maximize data throughput, and the two bus traffic paths through the bridge act independently.
The PCI2250 bridge is compliant with the PCI Local Bus Specification, and can be used to overcome the electrical loading limits of 10 devices per PCI bus and one PCI device per expansion slot by creating hierarchical buses. The PCI2250 provides two-tier internal arbitration for up to four secondary bus masters and may be implemented with an external secondary PCI bus arbiter
|
PCI2250 |
| Intel-Compatible Part Number |
21152ab |
| Speed(MHz) |
33 |
| Expansion Interface(bits) |
32 |
| Hot-Swap |
Friendly |
| Supply Voltage(s)(V) |
3.3, 5 |
| Operating Temperature Range(C) |
0 to 70 |
| Pin/Package |
160QFP, 176LQFP |
| Approx. Price (US$) |
6.10 | 1ku |
PCI2250 特性
- Configurable for PCI Power Management Interface Specification Revision 1.0 or 1.1 support
- Compact-PCI friendly silicon as defined in the Compact-PCI Hot Swap Specification
- 3.3-V core logic with universal PCI interface compatible with 3.3-V and 5-V PCI signaling environments
- Two 32-bit, 33-MHz PCI buses
- Provides internal two-tier arbitration for up to four secondary bus masters and supports an external secondary bus arbiter
- Burst data transfers with pipeline architecture to maximize data throughput in both directions
- Provides programmable extension windows and port decode options
- Independent read and write buffers for each direction
- Provides five secondary PCI clock outputs
- Predictable latency per PCI Local Bus Specification
- Propagates bus locking
- Secondary bus is driven low during reset
- Provides VGA palette memory and I/O, and subtractive decoding options
- Advanced submicron, low-power CMOS technology
- Fully compliant with PCI-to-PCI Bridge Architecture Specification
- Packaged in 160-pin QFP (PCM) and 176-pin thin QFP (PGF)
PCI2250 芯片订购指南
| 器件 |
状态 |
温度 |
价格 |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| PCI2250PCM |
ACTIVE |
0 to 70 |
6.10 | 1ku |
QFP (PCM) | 160 |
24 | JEDEC TRAY (10+1) |
|
| PCI2250PCMG4 |
ACTIVE |
|
6.10 | 1ku |
QFP (PCM) | 160 |
24 | JEDEC TRAY (10+1) |
|
| PCI2250PGF |
ACTIVE |
0 to 70 |
6.10 | 1ku |
LQFP (PGF) | 176 |
40 | JEDEC TRAY (10+1) |
|
| PCI2250PGFG4 |
ACTIVE |
0 to 70 |
6.10 | 1ku |
LQFP (PGF) | 176 |
40 | JEDEC TRAY (10+1) |
|
PCI2250 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| PCI2250PCM |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
PCI2250PCM |
PCI2250PCM |
| PCI2250PCMG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
PCI2250PCMG4 |
PCI2250PCMG4 |
| PCI2250PGF |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
PCI2250PGF |
PCI2250PGF |
| PCI2250PGFG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
PCI2250PGFG4 |
PCI2250PGFG4 |
PCI2250 应用技术支持与电子电路设计开发资源下载
- PCI2250 数据资料 dataSheet 下载.PDF
- TI 德州仪器PCI选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 使用数字隔离器设计隔离式 I2C 总线接口 (zhct119.PDF, 339 KB)
- 1Q 2011 Issue Analog Applications Journal (slyt399.PDF, 964 KB)
- 接口选择指南 (Rev. D) (PDF 2994 KB)
- Signaling Rate vs. Distance for Differential Buffers (PDF 420 KB)
- Q1 2009 Issue Analog Applications Journal (slyt319.PDF, 1.39 MB)
- Isolated RS-485 Reference Design (PDF 80 KB)
- 无铅组件涂层的保存期评估 (PDF 1305 KB)
- Analog Signal Chain Guide (8.62 MB)
- Industrial Interface IC Solutions (101 KB)
PCI2250 工具和软件