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 5PB1104CMGK are both 1-to-2 LVCMOS clock fanout buffers from Renesas with matching 1.8V to 3.3V supply range, 200 MHz maximum output frequency, and identical 8-pin package footprints, making the 5PB1104CMGK a viable functional replacement candidate for the 5PB1102CMGI8 in most clock distribution applications. Designers should validate the output enable polarity and confirm the operating temperature grade meets the target application requirements before committing to a drop-in substitution.
Output Type
High match
Channel Count
High match
Package Type
Validation required
Operating Temperature
Validation required
Parts at a glance
Part B
5PB1104CMGK
美國瑞薩電子公司
- Lifecycle
- Active
- Stock
- 7505 件
- Package
- UFDFN-8
- 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 | 5PB1104CMGK | Why it matters |
|---|---|---|---|
| Manufacturer | Renesas Electronics | Renesas Electronics | Same manufacturer ensures consistent quality and support. |
| Function | Clock Buffer / Fanout Buffer | Clock Buffer / Fanout Buffer | Both serve as clock distribution buffers, but channel count differs. |
| Number of Outputs | 2 | 4 | Determines how many clock loads can be driven; affects fanout capability. |
| Package / Case | 8-TSSOP / 8-MSOP | 16-VFQFN / 16-QFN | Different footprints require PCB layout changes; not drop-in compatible. |
| Supply Voltage | 1.71 V to 3.465 V | 1.71 V to 3.465 V | Same wide supply range allows use in similar low-voltage systems. |
| Maximum Frequency | 200 MHz | 200 MHz | Both support high-speed clock signals up to 200 MHz. |
| Output Type | LVCMOS | LVCMOS | LVCMOS outputs are compatible with most digital logic inputs. |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | Industrial temperature range suits harsh environments. |
| Input Type | LVCMOS / LVTTL | LVCMOS / LVTTL | Accepts common logic levels for easy interfacing. |
| Propagation Delay | 2.5 ns (typical) | 2.5 ns (typical) | Low skew and delay are critical for timing-sensitive clock distribution. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 5PB1102CMGI8 | 5PB1104CMGK |
|---|---|---|
| Supplier | - | Renesas Electronics America Inc |
| 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 ~ 105°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the 5PB1102CMGI8 and 5PB1104CMGK?
The 5PB1102CMGI8 and 5PB1104CMGK are Renesas (formerly IDT) 5PB11xx series LVCMOS clock fanout buffers. The 5PB1102CMGI8 is a 1-to-2 fanout buffer, while the 5PB1104CMGK is a 1-to-4 fanout buffer, both designed for low-skew clock distribution in electronic systems.
What is the difference in fanout between the 5PB1102CMGI8 and 5PB1104CMGK?
The 5PB1102CMGI8 provides two LVCMOS outputs from a single input, whereas the 5PB1104CMGK provides four LVCMOS outputs from a single input. This difference determines how many clock loads each device can drive directly.
Do the 5PB1102CMGI8 and 5PB1104CMGK use the same package type?
No. The 5PB1102CMGI8 is supplied in an 8-lead TSSOP or SOIC package depending on the specific ordering variant, while the 5PB1104CMGK is supplied in a 16-lead TSSOP or QSOP package. Package differences affect PCB footprint and pin count.
Are the 5PB1102CMGI8 and 5PB1104CMGK pin-compatible?
No. Because the 5PB1104CMGK has more outputs and a different pin count, it is not pin-compatible with the 5PB1102CMGI8. A board designed for one device cannot directly accept the other without layout changes.
What supply voltage do the 5PB1102CMGI8 and 5PB1104CMGK require?
Both devices operate from a 3.3 V or 2.5 V supply, depending on the specific ordering option. Designers must verify the exact voltage rating for the chosen part number against the official Renesas datasheet before use.
Can the 5PB1102CMGI8 be used as a drop-in replacement for the 5PB1104CMGK?
No. The 5PB1102CMGI8 has fewer outputs and a different package and pinout than the 5PB1104CMGK. A drop-in replacement is not possible without redesigning the clock distribution network and PCB layout.
What are the typical applications for the 5PB1102CMGI8 and 5PB1104CMGK?
Both devices are used in applications requiring low-skew clock fanout, such as networking equipment, servers, storage systems, and industrial electronics. The 5PB1102CMGI8 suits designs needing two clock outputs, while the 5PB1104CMGK suits designs needing four clock outputs.
Where can I find verified technical data for the 5PB1102CMGI8 and 5PB1104CMGK?
Verified technical data is available from the official Renesas datasheets and from authorized distributors such as DigiKey, Mouser, TTI, and Future Electronics. Always confirm parameters against the manufacturer datasheet for the exact ordering part number.