Part A
5PB1102CMGI
Renesas Electronics Corporation
- Lifecycle
- Active
- Stock
- 7057 PCS
- Series
- Clock-Timing - Clock Buffers, Drivers
Replacement verdict
Compatible functional replacement candidate
The 5PB1102CMGI and 5PB1104CMGK are both 1-to-2 LVCMOS clock fanout buffers from Renesas with matching supply voltage, output type, and operating temperature range, making them strong functional replacement candidates. The primary distinction is package and pinout, so validation against the target PCB layout is required before substitution.
Output Type
High match
Supply Voltage
High match
Operating Temperature
High match
Package Type
Validation required
Parts at a glance
Part B
5PB1104CMGK
Công ty Renesas Electronics America Inc
- Lifecycle
- Active
- Stock
- 7505 PCS
- Package
- UFDFN-8
- Series
- Clock-Timing - Clock Buffers, Drivers
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 5PB1102CMGI | 5PB1104CMGK | Why it matters |
|---|---|---|---|
| Manufacturer | Renesas Electronics | Renesas Electronics | Confirms both parts come from the same vendor, simplifying sourcing and qualification. |
| Function | Clock fanout buffer | Clock fanout buffer | Both devices serve the same signal distribution role, which is essential for functional substitutability. |
| Number of Outputs | 2 | 4 | Output count determines how many clock loads can be driven, directly affecting board-level compatibility. |
| Package / Case | 8-TSSOP / MSOP | 16-TSSOP / MSOP | Different package footprints require different PCB land patterns, preventing drop-in replacement. |
| Supply Voltage | 1.8 V to 3.3 V | 1.8 V to 3.3 V | Matching supply ranges allow both parts to operate in the same power domain without level shifting. |
| Output Type | LVCMOS | LVCMOS | Identical output signaling ensures downstream receivers see compatible logic levels. |
| Maximum Operating Frequency | 200 MHz | 200 MHz | Frequency capability must meet the system clock rate for the buffer to be usable. |
| Input Type | LVCMOS / LVTTL | LVCMOS / LVTTL | Compatible input thresholds allow the same upstream clock source to drive either device. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Matching temperature grades ensure both parts suit the same environmental conditions. |
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 | 5PB1102CMGI | 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 ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | 1.71V ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 105°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | 5PB1102 | - |
| Packaging | Strip | - |
Frequently asked questions
What are the 5PB1102CMGI and 5PB1104CMGK?
The 5PB1102CMGI and 5PB1104CMGK are Renesas (formerly IDT) 5PB11xx series LVCMOS clock fanout buffers. The 5PB1102CMGI 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 high-performance systems.
What is the difference in fanout capability between the 5PB1102CMGI and 5PB1104CMGK?
The 5PB1102CMGI provides two LVCMOS outputs from a single input, whereas the 5PB1104CMGK provides four LVCMOS outputs. This difference determines how many clock loads each device can drive without additional buffering.
Do the 5PB1102CMGI and 5PB1104CMGK use the same package type?
No. The 5PB1102CMGI is supplied in an 8-pin TSSOP package, while the 5PB1104CMGK is supplied in a 16-pin TSSOP package. The different pin counts and footprints prevent direct PCB drop-in replacement without layout changes.
Are the 5PB1102CMGI and 5PB1104CMGK pin-compatible?
They are not pin-compatible. The 5PB1102CMGI has 8 pins, and the 5PB1104CMGK has 16 pins. Pin functions, power supply pins, and output assignments differ between the two devices, so they cannot be interchanged on the same PCB footprint.
What supply voltage do the 5PB1102CMGI and 5PB1104CMGK operate at?
Both devices operate from a 3.3 V nominal supply, with a specified operating range of 3.135 V to 3.465 V. They are not specified for 1.8 V, 2.5 V, or 5 V operation.
Can the 5PB1102CMGI and 5PB1104CMGK be used in the same clock tree design?
Yes, they can be used together in a clock tree if the design accounts for the different output counts and package footprints. The 5PB1102CMGI can drive two clock loads, and the 5PB1104CMGK can drive four, allowing a single input clock to be distributed to multiple destinations with low skew.
What is the output skew performance of the 5PB1102CMGI and 5PB1104CMGK?
Both devices are specified with low output-to-output skew, typically 50 ps maximum, and low part-to-part skew, typically 150 ps maximum, making them suitable for synchronous clock distribution where tight timing margins are required.
Are the 5PB1102CMGI and 5PB1104CMGK RoHS compliant?
Yes. Both the 5PB1102CMGI and 5PB1104CMGK are RoHS-compliant and halogen-free, as stated in Renesas environmental documentation for the 5PB11xx series.