# RX-8581NB:B3 EPSON | Integrated Circuits (ICs) | DigiKey

**Manufacturer:** EPSON  
**MPN:** `RX-8581NB:B3`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | EPSON |
| Manufacturer name | EPSON |
| Manufacturer | EPSON |
| Extra Product Name | RX-8581NB:B3 EPSON \| Integrated Circuits (ICs) \| DigiKey |
| atoms | 1 |
| extraShipping | 0 |
| moq | 1 |
| MPN | RX-8581NB:B3 |
| multiple | 1 |
| packaging | Cut Tape (CT) & Digi-Reel? |
| qtyInStock | 0 |
| SKU | 5175008 |
| snippet | Real Time Clock (RTC) IC Clock/Calendar I?C, 2-Wire Serial 22-SMD, 20 Leads, Flat Leads |
| tierMinQty1 | 1 |
| tierMinQty2 | 10 |
| tierMinQty3 | 25 |
| tierMinQty4 | 100 |
| tierMinQty5 | 250 |
| tierMinQty6 | 500 |
| tierMinQty7 | 1,250 |
| tierPrice1 | 5.49000 |
| tierPrice2 | 4.92700 |
| tierPrice3 | 4.65760 |
| tierPrice4 | 4.03650 |
| tierPrice5 | 3.82952 |
| tierPrice6 | 3.43620 |
| tierPrice7 | 2.89800 |
| Category | Integrated Circuits (ICs) |
| Mfr | EPSON |
| Series | RX-8581NB |
| Package | Tape & Reel (TR) |
| Product Status | Obsolete |
| Type | Clock/Calendar |
| Features | Alarm, Leap Year |
| Memory Size | - |
| Time Format | HH:MM:SS (24 hr) |
| Date Format | YY-MM-DD-dd |
| Interface | I?C, 2-Wire Serial |
| Voltage - Supply | 1.8V ~ 5.5V |
| Voltage - Supply, Battery | - |
| Current - Timekeeping (Max) | 0.8?A ~ 1.2?A @ 3V ~ 5V |
| Operating Temperature | -40?C ~ 85?C |
| Mounting Type | Surface Mount |
| Package / Case | 22-SMD, 20 Leads, Flat Leads |
| Supplier Device Package | 22-SON |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Digi-Key | 5175008 | 5.49 | 1 | None | 1 |
| Hotenda | H2302326 | 3.145 | 1 | None | 250 |
| Win Source | RX-8581NB:B3 |  |  | 1070 | 1 |
| Dove | DOV066167 |  |  | None | 1 |
| iodParts | RX-8581NB:B3 |  |  | None | 1 |
| Digi-Key | 5175141 | 4.9 | 1 | 976 | 100 |
| Digi-Key | 5175275 | 5.49 | 1 | 1172 | 100 |

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Structured data: `/python/html6/product/500/136000000/136202000/part_--RX8581NBB3---EPSON--b87688a226.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp