I-CORE · LED / LCD display drivers and driver arrays
CS1621CGO
32×4 segment LCD driver in SSOP-48 — factory-original I-CORE, a functional equivalent of HT1621B.
In stock · ShenzhenChinese datasheetREACHRoHS
You useHT1621B
I-CORE equivalentCS1621CGO
SSOP-48 · 2.4–5.5 V
Key specifications
| Manufacturer | I-CORE (Wuxi I-CORE Electronics Co., Ltd.) |
|---|---|
| Part number | CS1621CGO |
| Function | 32×4 segment LCD driver |
| Package | SSOP-48 |
| Supply voltage | 2.4–5.5 V |
| Operating temperature | −40 to 85 °C |
| Replaces | HT1621B |
| 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 CS1621CGO replace HT1621B?
- CS1621CGO is I-CORE's functional equivalent of HT1621B in the same SSOP-48 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 CS1621CGO?
- Supply: 2.4–5.5 V. Operating temperature: −40 to 85 °C. See the datasheet for full electrical characteristics.
- Is CS1621CGO 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 CS1621 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
- 32 × 4 RAM-mapped LCD driver with controller
- Supply 2.4–5.5 V
- Internal 256 kHz RC oscillator, or external 32 kHz crystal / 256 kHz clock
- Selectable 1/2 or 1/3 bias and 1/2, 1/3 or 1/4 duty
- Buzzer output 2 kHz or 4 kHz
- Time base generator and watchdog timer; power-down command
Pin functions
| Pin | Name | Function |
|---|---|---|
| 9 | CS̅ | Chip select (pull-up) |
| 10 | RD̅ | Read clock (pull-up) |
| 11 | WR̅ | Write clock (pull-up) |
| 12 | DATA | Serial data in/out (pull-up) |
| 13 | VSS | Ground |
| 14, 15 | OSCO, OSCI | 32.768 kHz crystal or external clock; leave open with internal RC |
| 16 | VLCD | LCD drive supply |
| 17 | VDD | Supply |
| 18 | IRQ̅ | Time base / WDT overflow output |
| 19–20 | BZ, BZ̅ | Buzzer outputs |
| — | COM0–COM3, SEG0–SEG31 | LCD common / segment outputs (see datasheet pin map) |
Absolute maximum ratings
| Parameter | Rating |
|---|---|
| Supply voltage VDD | −0.3 to 7 V |
| Input voltage | VSS−0.3 to VDD+0.3 V |
| 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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