LED / LCD display drivers and driver arrays
LED segment drivers with key scan, LCD drivers and Darlington arrays from I-CORE, replacing TM1637, TM1650, TM1651, TM1668, TM1628, TM1616, TM1620, TM1640, TM1629, HT1621B and ULN2003 in appliance and meter displays.
| Your part number | I-CORE equivalent | Function | Package | Supply · Temp. |
|---|---|---|---|---|
| TM1629 | AIP1629A | LED display driver with key scan | SOP-32 | 5 V ±10% See datasheet |
| HT1621B | CS1621CGO | 32×4 segment LCD driver | SSOP-48 | 2.4–5.5 V −40 to 85 °C |
| ULN2003ADR | AIP2003LSA16.TR | 7-channel Darlington driver array | SOP-16 | Outputs up to 50 V −40 to 85 °C |
| TM1640 | AiP1640SA28.TR | 16-digit LED display driver | SOP-28 | 3–5.5 V −40 to 85 °C |
| TM1640 | AiP1640VB28.TR | 16-digit LED display driver | SSOP-28 | 3–5.5 V −40 to 85 °C |
| TM1668 | AIP1668VB24 | LED display driver with 10×2 key scan | SSOP-24 | 3–5.5 V −40 to 80 °C |
| TM1628 | AIP1628 | LED display driver with 10×2 key scan | SOP-28 | 3–5.5 V −40 to 85 °C |
| TM1628 | AIP1628VB28.TR | LED display driver with 10×2 key scan | SSOP-28 | 3–5.5 V −40 to 85 °C |
| TM1637 | AIP1637 | 6-digit LED driver with key scan, 2-wire | SOP-20 | 5 V ±10% −40 to 85 °C |
| TM1650 | AIP650 | 4-digit LED driver with key scan, 2-wire | SOP-16 | 3–5.5 V −40 to 85 °C |
| TM1651 | AiP1651SA16.TR | 4-digit LED driver with key scan, 2-wire | SOP-16 | 3–5.5 V −40 to 85 °C |
| TM1616 | AIP1616 | 4-digit 7-segment LED driver | SOP-16 | 3–5.5 V −40 to 85 °C |
| TM1620 | AIP1620 | LED display driver, 10×4 / 8×6 | SOP-20 | 3–5.5 V −20 to 70 °C (recommended) |
2-wire LED drivers (CLK / DIO)
AIP1637 drives 8 segments × 6 digits (common anode) with 8 × 2 key scan, a TM1637 equivalent. AIP650 drives 8 segments × 4 digits with 7 × 4 key scan (TM1650 equivalent); AiP1651 drives 7 × 4 with 7 × 1 keys (TM1651). AiP1640 drives 8 segments × 16 digits without key scan (TM1640). These parts use a start/stop/ACK framed two-wire protocol; check command codes in the datasheet before reusing firmware.
3-wire LED drivers (CLK / STB / DIO)
AIP1668 (SOP-24 / SSOP-24) and AIP1628 (SOP-28 / SSOP-28) offer 13 × 4 to 10 × 7 display modes with 10 × 2 key scan, equivalent to TM1668 and TM1628. AIP1629 drives up to 16 segments × 8 digits with key scan (TM1629). AIP1616 (7 × 4) and AIP1620 (10 × 4 to 8 × 6) are display-only drivers without key scan. These are used in induction cookers, rice cookers, microwave ovens, air conditioners and set-top boxes.
LCD driver
CS1621 is a 32 × 4 memory-mapped LCD driver with buzzer output and watchdog, functionally equivalent to HT1621B, for meters and appliances. Besides SSOP-48 it is stocked in QFP-44, SSOP-24 and SOP-24.
Driver array
AIP2003 provides seven 500 mA / 50 V Darlington channels with freewheeling diodes, a replacement for ULN2003 in relay and stepper-motor drive.
Reading I-CORE part numbers
| DA / SA / TA | DIP / SOP / TSSOP (e.g. SA16 = SOP-16, TA20 = TSSOP-20) |
|---|---|
| GB235 / GB236 | SOT-23-5 / SOT-23-6 |
| GC353 / GC363 | SOT-353 / SOT-363 (SC-70-5 / SC-70-6) |
| VB / SE / GH223 | SSOP / ESOP (exposed pad) / SOT-223 |
| .TR / .TB | Tape & reel / tube |
Questions buyers ask
- Is AIP1637 compatible with TM1637 Arduino libraries?
- AIP1637 uses the same pinout and the same CLK / DIO start-stop-ACK protocol with 8 × 6 display RAM, so TM1637 driver code is the usual starting point. Verify command codes and timing (max. clock 500 kHz – 1 MHz depending on datasheet revision) before production.
- Which I-CORE part replaces TM1650?
- AIP650 (SOP-16) — 8 segments × 4 digits, 7 × 4 key scan, 2-wire interface, 3.0–5.5 V supply.
- Is AiP1640 compatible with TM1640 firmware?
- It uses the same two-wire command interface concept; confirm command codes and timing in the datasheet before reusing firmware.
- Do you stock other display driver packages?
- Yes. AIP1628 and AiP1640 are held in both SOP-28 and SSOP-28; AIP1668 in SSOP-24 and SOP-24; CS1621 in SSOP-48, QFP-44, SSOP-24 and SOP-24. Ask for the package you need.
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.