I-CORE · LED / LCD display drivers and driver arrays
AIP1637
6-digit LED driver with key scan, 2-wire in SOP-20 — factory-original I-CORE, a functional equivalent of TM1637.
In stock · ShenzhenChinese datasheetREACHRoHS
You useTM1637
I-CORE equivalentAIP1637
SOP-20 · 5 V ±10%
Key specifications
| Manufacturer | I-CORE (Wuxi I-CORE Electronics Co., Ltd.) |
|---|---|
| Part number | AIP1637 |
| Function | 6-digit LED driver with key scan, 2-wire |
| Package | SOP-20 |
| Supply voltage | 5 V ±10% |
| Operating temperature | −40 to 85 °C |
| Replaces | TM1637 |
| Compliance | RoHS (EU 2011/65/EU + 2015/863) and REACH SVHC — third-party lab tested; reports on request |
| Datasheet | PDF, Chinese |
Questions buyers ask
- Can AIP1637 replace TM1637?
- AIP1637 is I-CORE's functional equivalent of TM1637 in the same SOP-20 package. Standard parts in this family share the industry pinout, but please compare both datasheets — supply range, timing and absolute maximum ratings — before design-in.
- What is the supply voltage and temperature range of AIP1637?
- Supply: 5 V ±10%. Operating temperature: −40 to 85 °C. See the datasheet for full electrical characteristics.
- Is AIP1637 in stock and what is the minimum order?
- Yes, it is held in stock in Shenzhen. SMD parts can be ordered from 1 pc; DIP parts ship in full tubes. Minimum order value is US$50 and shipping is charged at cost. Orders ship within 2–3 business days after payment.
- Is it original I-CORE product?
- Yes. We supply factory-original I-CORE (Wuxi I-CORE Electronics) parts in sealed reels and tubes. Our ISO 9001, ISO 14001 and ISO 45001 certificates are shown on the home page; RoHS and REACH test reports are available on request.
English datasheet summary
Translated summary of the I-CORE AIP1637 datasheet, which is published in Chinese. Prepared by Lingxing ChipMicro for quick evaluation; if anything differs, the original datasheet prevails. Need the full English datasheet? Request it.
Key features
- LED driver for common-anode displays, 8 segments × 6 digits
- Key scan 8 × 2 with falling-edge key recognition
- 8-step brightness control
- 2-wire serial interface CLK / DIO (start / stop / ACK framing, not I²C-addressed), max. clock 500 kHz
- Built-in RC oscillator (450 kHz), power-on reset and auto-blanking
- Packages: SOP-20 and DIP-20
Pin functions
| Pin | Name | Function |
|---|---|---|
| 1 | GND | Ground |
| 2–9 | SG1/KS1–SG8/KS8 | Segment outputs, also key-scan lines (N-MOS open drain) |
| 10–15 | GRID6–GRID1 | Digit outputs (P-MOS open drain) |
| 16 | VDD | Supply, 5 V ±10 % |
| 17 | DIO | Serial data in/out |
| 18 | CLK | Clock input |
| 19–20 | K1–K2 | Key-scan data inputs |
Absolute maximum ratings
| Parameter | Rating |
|---|---|
| Supply voltage VDD | −0.5 to +7.0 V |
| Logic input voltage | −0.5 V to VDD + 0.5 V |
| Power dissipation | 400 mW |
| Operating temperature | −40 to +85 °C |
| Storage temperature | −65 to +150 °C |
Recommended operating conditions
| Parameter | Value |
|---|---|
| Logic supply VDD | 5 V (DC characteristics at 4.5–5.5 V) |
| Input high VIH | 0.7 VDD to VDD |
| Input low VIL | 0 to 0.3 VDD |
| Operating temperature | −40 to +85 °C |
Request a quote
USD price, stock and lead time within 1 business day. SMD parts from 1 pc, DIP in full tubes; minimum order US$50, shipping at cost.
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