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| Part Number | MK1491-06RLF | MK1491-09FILNTR | MK1491-09FLNTR | MK1491-06R | MK1491-06RLFTR |
| Manufacturer | Renesas Electronics Corporation | Renesas Electronics Corporation | Renesas Electronics Corporation | Renesas Electronics Corporation | Renesas Electronics Corporation |
| Series | - | - | - | - | - |
| Package/Case | 28-SSOP (0.154", 3.90mm Width) | 28-SSOP (0.209", 5.30mm Width) | 28-SSOP (0.209", 5.30mm Width) | 28-SSOP (0.154", 3.90mm Width) | 28-SSOP (0.154", 3.90mm Width) |
| Packaging | Bulk | Tape & Reel (TR) | Tape & Reel (TR) | Tube | Tape & Reel (TR) |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Programmable | Not Verified | Not Verified | Not Verified | Not Verified | Not Verified |
| PLL | No | Yes | Yes | No | No |
| Main Purpose | AMD CPU | AMD CPU | AMD CPU | AMD CPU | AMD CPU |
| Input | Crystal | Crystal | Crystal | Crystal | Crystal |
| Output | LVCMOS | Clock | Clock | LVCMOS | LVCMOS |
| Number of Circuits | 1 | 1 | 1 | 1 | 1 |
| Ratio - Input:Output | 1:10 | 1:12 | 1:12 | 1:10 | 1:10 |
| Differential - Input:Output | No/No | No/No | No/No | No/No | No/No |
| Frequency - Max | 49.152MHz | 66MHz | 66MHz | 49.152MHz | 49.152MHz |
| Voltage - Supply | 3.15V ~ 3.45V | 3.15V ~ 3.45V | 3.15V ~ 3.45V | 3.15V ~ 3.45V | 3.15V ~ 3.45V |
| Operating Temperature | 0°C ~ 70°C | -40°C ~ 85°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Grade | - | - | - | - | - |
| Qualification | - | - | - | - | - |
| Supplier Device Package | 28-QSOP | 28-SSOP | 28-SSOP | 28-QSOP | 28-QSOP |
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