Part A
5PB1102CMGI8
美國瑞薩電子公司
- Lifecycle
- Active
- Stock
- 4224 件
- Package
- UFDFN-8
- Series
- 時鐘定時-時鐘緩衝器、驅動器
Replacement verdict
Compatible functional replacement candidate
The 5PB1102CMGI8 and 5PB1104CMGI are both single-output LVCMOS clock fanout buffers from the same 5PB11xx family, sharing identical supply voltage, output type, and operating temperature range. The 5PB1104CMGI provides an additional output enable function, which may require validation depending on the target design's control signal requirements. Both devices are functionally compatible for clock distribution applications, with the primary difference being the output enable feature.
Output Type
High match
Supply Voltage
High match
Operating Temperature
High match
Output Enable Function
Validation required
Parts at a glance
Part B
5PB1104CMGI
瑞薩電子
- Lifecycle
- Active
- Stock
- 9312 件
- Series
- 時鐘定時-時鐘緩衝器、驅動器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 5PB1102CMGI8 | 5PB1104CMGI | Why it matters |
|---|---|---|---|
| Number of Outputs | 2 | 4 | Determines how many clock destinations can be driven from a single device, directly affecting fan-out capability and board layout. |
| Input Type | Differential (LVPECL/LVDS/HCSL/CML compatible) | Differential (LVPECL/LVDS/HCSL/CML compatible) | Defines which signal standards the buffer can accept at its input, critical for interoperability with upstream clock sources. |
| Output Type | LVCMOS | LVCMOS | Specifies the signaling standard delivered to downstream loads, which must match receiver requirements. |
| Supply Voltage | 2.5 V / 3.3 V | 2.5 V / 3.3 V | Determines compatibility with the system power rail and affects output swing and power consumption. |
| Maximum Output Frequency | 200 MHz | 200 MHz | Sets the upper limit of clock rates the buffer can pass while maintaining signal integrity. |
| Additive Phase Jitter | 0.05 ps RMS (typical) | 0.05 ps RMS (typical) | Low jitter is essential for high-speed serial interfaces and precision timing applications. |
| Output-to-Output Skew | 30 ps (typical) | 30 ps (typical) | Minimizes timing mismatch between outputs, important for synchronous multi-load clock distribution. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Defines the environmental conditions under which the device is guaranteed to operate reliably. |
| Package | 8-pin VFQFPN | 16-pin VFQFPN | Footprint and pin count affect PCB layout, routing, and mechanical compatibility for drop-in substitution. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 5PB1102CMGI8 | 5PB1104CMGI |
|---|---|---|
| Part Status | Active | Active |
| Type | Fanout Buffer (Distribution) | Fanout Buffer (Distribution) |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:2 | 1:4 |
| Differential - Input: Output | No/No | No/No |
| Input | LVCMOS | LVCMOS |
| Output | LVCMOS | LVCMOS |
| Frequency - Max | 200 MHz | 200 MHz |
| Voltage - Supply | 1.71V ~ 3.465V | 1.71V ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | - | 5PB1104 |
Frequently asked questions
What are the 5PB1102CMGI8 and 5PB1104CMGI?
The 5PB1102CMGI8 and 5PB1104CMGI are Renesas (formerly IDT) 5PB11xx series LVCMOS clock fanout buffers. The 5PB1102CMGI8 is a 1-to-2 fanout buffer, while the 5PB1104CMGI is a 1-to-4 fanout buffer. Both operate from a 1.8 V to 3.3 V supply and are offered in a 16-pin QFN package.
What is the difference in output count between the 5PB1102CMGI8 and 5PB1104CMGI?
The 5PB1102CMGI8 provides two LVCMOS outputs, whereas the 5PB1104CMGI provides four LVCMOS outputs. This is the primary functional difference between the two devices.
Are the 5PB1102CMGI8 and 5PB1104CMGI pin-compatible?
No. The 5PB1102CMGI8 and 5PB1104CMGI are not pin-compatible. The 5PB1104CMGI uses additional pins for its extra outputs, so the PCB footprint and pin assignments differ between the two devices.
What supply voltage range do the 5PB1102CMGI8 and 5PB1104CMGI support?
Both devices support a supply voltage range of 1.8 V to 3.3 V, with a nominal 2.5 V or 3.3 V operation depending on the application. Designers should verify the exact recommended operating conditions in the Renesas datasheet for the specific device.
What is the maximum operating frequency of the 5PB1102CMGI8 and 5PB1104CMGI?
Both the 5PB1102CMGI8 and 5PB1104CMGI are specified for a maximum output frequency of 200 MHz. This makes them suitable for low-skew clock distribution in applications such as networking, computing, and industrial systems.
Can the 5PB1102CMGI8 be used as a drop-in replacement for the 5PB1104CMGI?
No. Because the 5PB1104CMGI has four outputs and a different pinout, the 5PB1102CMGI8 cannot be used as a drop-in replacement. A redesign of the clock distribution network and PCB layout would be required.
What package type do the 5PB1102CMGI8 and 5PB1104CMGI use?
Both devices are offered in a 16-pin QFN package. The "CMGI8" and "CMGI" suffixes indicate tape-and-reel packaging options from Renesas. Designers should confirm the exact package drawing and thermal pad requirements from the official datasheet.
What are typical applications for the 5PB1102CMGI8 and 5PB1104CMGI?
Typical applications include clock distribution in servers, storage systems, networking equipment, and industrial controllers. The 5PB1102CMGI8 is used where two low-skew outputs are sufficient, while the 5PB1104CMGI is used when four outputs are required.