MAX458CPL - 8x4 Video Crosspoint Switch | Maxim Integrated
料号： MAX458CPL ✗ 停产MAX458CPL 概述
A video crosspoint switch is a routing semiconductor used to direct video signals between multiple sources and destinations. In the broader hierarchy, the MAX458CPL belongs to the interface IC family and provides a configurable signal-routing function between video sources and downstream display, processing, or monitoring equipment. Its buffered outputs are intended to preserve signal integrity when signals are routed through the switching matrix.
The MAX458CPL is identified in manufacturer-related listings as the MAX458/MAX459 8x4 video crosspoint-switch family with buffers. The MAX458CPL ordering code specifies the commercial temperature grade and a 40-pin DIP package. The product is intended for through-hole PCB assembly rather than surface-mount reflow assembly. Its rectangular DIP outline provides a straightforward connection pattern for equipment with sufficient board space and a suitable through-hole footprint.
Typical uses include video surveillance systems, video walls, broadcast and professional video test equipment, monitor routing, and embedded video distribution platforms. The switching matrix allows a controller to select which of eight video inputs feeds one of four buffered outputs. Designers should account for the device's legacy through-hole package, required bypassing, signal routing, grounding, and any video-level or timing constraints defined in the manufacturer datasheet.
For a new design, the MAX458CPL is most appropriate when an existing 40-pin DIP footprint and an 8x4 buffered-video architecture are required. For compact or modern equipment, a surface-mount implementation may simplify board layout, but any functional substitute must be verified for pin compatibility, video bandwidth, output drive, supply requirements, control logic, and operating temperature before use.
This page summarizes the available product information, package characteristics, functional architecture, sourcing details, and engineering considerations for engineers evaluating the MAX458CPL. Use the manufacturer datasheet and its pin-description table to verify signal assignments, timing, electrical limits, decoupling, and board-layout requirements before releasing a production design.
直接替换替代料： MAX458CPL ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
MAX459CPL
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MAX458CPL 最大额定值与电气特性
| Product Type | Video crosspoint switch with buffers |
| Input Channels | 8 channels |
| Output Channels | 4 channels |
| Crosspoint Configuration | 8x4 |
| Output Buffering | Buffered output channels |
| 封装 | 40-pin plastic DIP |
| Terminal Count | 40 terminals |
| 安装类型 | Through-hole, non-surface-mount |
| Package Shape | Rectangular |
| Temperature Grade | Commercial |
| Manufacturer | Maxim Integrated |
| Product Family | MAX458/MAX459 8x4 video crosspoint switch family |
| Datasheet Page Count | 16 pages |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| Lead-Free Status | unknown |
| AEC-Q100 Qualification | not_applicable |
MAX458CPL rectangular 引脚配置指南
MAX458CPL（rectangular 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： MAX458CPL.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MAX458CPL 适用于 6 应用s: Video Surveillance Routing, Video Wall Display Control, Professional Video Test Equipment, Broadcast and Studio Monitoring, Embedded Video Distribution, Industrial Video Inspection.
Video Surveillance Routing
The MAX458CPL fits centralized video-surveillance routing systems where eight camera or playback signals must feed four selected destinations. Its 8x4 crosspoint arrangement allows a controller to assign sources to monitors, recorders, or downstream processors without duplicating the entire input stage. The four buffered outputs support the routing matrix, while the 40-pin through-hole DIP provides a conventional assembly option for rugged or serviceable equipment. Confirm the required video bandwidth, output amplitude, synchronization behavior, and control timing against the manufacturer datasheet before selecting component values and trace impedance.
推荐
Video Wall Display Control
The MAX458CPL is suitable for video-wall control systems that distribute eight source images among four display outputs. The switching matrix provides a practical mechanism for selecting which camera, computer, or test pattern appears on each downstream display channel. Because the device uses a 40-pin DIP package, it favors equipment with through-hole construction, adequate spacing, and manual serviceability rather than compact display electronics. System integrators should validate video timing, signal integrity across the selected traces, and buffer stability using the electrical and timing sections of the manufacturer datasheet.
推荐
Professional Video Test Equipment
The MAX458CPL can be used in professional video test equipment to route multiple composite or baseband video sources to selected measurement and display paths. Eight inputs and four buffered outputs allow operators or automated test software to present different patterns without rewiring the equipment for every test. The commercial-grade MAX458CPL ordering code is appropriate for ordinary commercial environments, subject to the actual operating-temperature limits stated in the datasheet. Probe points should preserve source impedance, grounding, and return paths so routing does not obscure waveform or frequency-response measurements.
推荐
Broadcast and Studio Monitoring
The MAX458CPL supports broadcast and studio monitoring systems where several synchronized video feeds must be routed to confidence monitors, scopes, or downstream frame synchronizers. The four buffered outputs can reduce the loading burden associated with driving selected external video paths, while the eight input channels provide flexible source selection. The legacy DIP package makes it practical for modular broadcast racks assembled with through-hole boards and replaceable modules. Engineers must check the specific video standard, maximum frequency, channel-to-channel timing, and termination requirements before implementation.
推荐
Embedded Video Distribution
The MAX458CPL can support legacy embedded video distribution equipment that needs to distribute eight generated or captured video streams among four peripheral display paths. It is most appropriate where a 40-pin through-hole footprint, buffered routing outputs, and controlled source selection are preferred over highly integrated surface-mount decoders. The implementation should include correct bypass and power-routing practices and should account for the finite board area required around the rectangular DIP package. Validate signal losses and logic levels at the selected input and output nodes with representative cable and termination loads.
推荐
Industrial Video Inspection
The MAX458CPL is applicable to industrial inspection systems that route multiple camera outputs to monitors, vision processors, or recording equipment. The eight-input, four-output matrix supports flexible workstation layouts and reduces the number of external source-selection switches required by the system integrator. A commercial-grade through-hole implementation may also simplify maintenance in production facilities where modules are replaced rather than densely assembled. Operators should verify environmental requirements, since the manufacturer records identify the temperature grade as commercial but do not state the numerical operating range.
推荐
推荐产品汇总
工程参考数据： MAX458CPL ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MAX459CPL |
|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated |
| Package | 40-pin plastic DIP | 40-pin plastic DIP |
| Product Type | Video crosspoint switch with buffers | Video crosspoint switch with buffers |
| Crosspoint Configuration | 8x4 | 8x4 |
| Input Channels | 8 channels | 8 channels |
| Output Channels | 4 buffered channels | 4 buffered channels |
| Mounting Type | Through-hole | Through-hole |
关键差异点
- Eight-input video routing in a through-hole DIP implementation （对比 MAX459CPL)
- Clear commercial temperature-grade ordering configuration （对比 MAX459CPL)
- Documented through-hole package for legacy and modular assemblies （对比 MAX459CPL)
设计说明
Design the board around the exact 40-pin through-hole footprint associated with the MAX458CPL ordering code. Preserve the package's pin-1 orientation, provide adequate body clearance for insertion and servicing, and route video traces away from high-current switching nodes. Because the indexed material does not identify every pin function, assign each net from the manufacturer pin-description table rather than from package position alone. This prevents connectivity errors during schematic capture and PCB layout.
Treat every routed video channel as a high-speed analog signal path. Use short traces, continuous reference planes, controlled return-current paths, and terminations matched to the source and load impedances. Avoid adding long stubs or sharing narrow return paths between channels. The MAX458/MAX459 family includes buffered outputs, but buffering does not remove the need to verify source impedance, cable loading, edge rate, crosstalk, and output-drive margin against the datasheet limits.
Follow the manufacturer's bypass and decoupling recommendations when constructing the power network. Place required capacitors at the device pins with short, low-inductance connections and keep supply routing isolated from sensitive video paths. The available product records do not state the supply voltage, capacitor values, or control-level thresholds, so these values must be taken directly from the datasheet before schematic release. Do not infer power-pin locations from the 40-pin count.
Do not treat MAX458CPL and MAX459CPL as automatically interchangeable merely because both use a 40-pin DIP family package. Compare the pin table, control truth table, supply limits, timing, and operating-temperature specifications before substitution. The target is a commercial-grade legacy device, so also confirm board area, sourcing continuity, and manual serviceability. A mechanically similar package does not by itself guarantee drop-in electrical compatibility.
合规信息
The product records identify the MAX458CPL as a commercial-grade 40-pin DIP video crosspoint switch but do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status.
