製品概要
概要
The ST3222E is a 3 V powered EIA/TIA-232 and V.28/V.24 communications interface with low power requirements, high data-rate capabilities and enhanced electrostatic discharge (ESD) protection to ±8 kV using IEC1000-4-2 Contact Discharge and ±15 kV using the Human Body Model. ST3222E has a proprietary low dropout transmitter output stage providing true RS-232 performance from 3 to 5 V supplies with a dual charge pump. The charge pump requires only four small 0.1 mF external capacitors for operation form 3 V supply. The device has two receivers and two drivers. The ST3222E features a 1 mA shutdown mode that reduces power consumption and extends battery life in portable systems. Its receivers can remain active in shutdown mode, allowing external devices such as modems to be monitored using only 1 mA supply current. The device is guaranteed to run at data rates of 250 Kbps while maintaining RS-232 output levels.
Typical applications are Notebook, Sub-notebook and Palmtop Computers, Battery Powered Equipment, Hand-Held Equipment, Peripherals and Printers.
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All features
- Available in SSOP20 and TSSOP20
- ESD protection for RS-232 I/O pins ± 15 kV human body model, ± 8 kV IEC 1000-4-2 contact discharge
- 250KBps minimum guarantee data rate
- 300 µA supply current
- Meet EIA/TIA-232 specification down to 3 V
- 6 V/µs minimum guarantee slew rate
EDA Symbols, Footprints and 3D Models
STMicroelectronics - ST3222EC
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHSコンプライアンスグレード | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| ST3222ECPR | Active 交換品交換品 | SSOP 20 7.2x5.3 | Industrial | Ecopack3 | - | - | |
| ST3222ECTR | Active 交換品交換品 | TSSOP-20 | Industrial | Ecopack3 | - | - |
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Sample & Buy
| Part Number | 製品ステータス | Budgetary Price (US$)*/Qty | STから購入 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | |||||||||||||
| ST3222ECPR | | | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください | |||||||||||
| ST3222ECTR | | | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください | |||||||||||
ST3222ECPR Active
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
ST3222ECTR Active
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
（*）概算用の参考価格（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。