Package Information
| CAD Model: | View CAD Model |
| Pkg. Type: | QFN |
| Pkg. Code: | LED |
| Lead Count (#): | 20 |
| Pkg. Dimensions (mm): | 5.00 x 5.00 x 0.65 |
| Pitch (mm): | 0.65 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
| RoHS (ISL4223EIRZ-T) | Download |
Product Attributes
| Lead Count (#) | 20 |
| Carrier Type | Reel |
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| Pb Free Category | Pb-Free 100% Matte Tin Plate w/Anneal-e3 |
| Temp. Range (°C) | -40 to +85°C |
| Country of Assembly | MALAYSIA |
| Country of Wafer Fabrication | UNITED STATES |
| Charge-pump Capacitance Value (µF) | 0.1 |
| Data Rate (Mbps) | 0.5 |
| High ESD Protection | Yes |
| IS Disabled (μA) | 0.15 |
| IS Enabled (mA) | 0.3 |
| Length (mm) | 5 |
| MOQ | 6000 |
| Manual Shutdown | Yes |
| Pitch (mm) | 0.7 |
| Pkg. Dimensions (mm) | 5.0 x 5.0 x 0.65 |
| Pkg. Type | QFN |
| Qualification Level | Standard |
| Receivers (#) | 2 |
| Rx Disable | Yes |
| Supply Voltage Vcc (Min) (V) | 2.7 |
| Supply Voltage Vcc Range | 2.7-5.5 |
| Thickness (mm) | 0.65 |
| Transmitters (#) | 2 |
| Width (mm) | 5 |
Resources for ISL4223E
Description
The ISL3232E, ISL4221E, and ISL4223E devices are 2. 7V to 5. 5V powered RS-232 transmitters/receivers that meet ElA/TIA-232 and V. 28/V. 24 specifications, even at VCC = 3. 0V. They provide ±15kV ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs (RS-232 pins). Targeted applications are PDAs, Palmtops, and hand-held products where the low operational power consumption and even lower standby power consumption are critical. Efficient on-chip charge pumps, coupled with manual and automatic powerdown functions, reduce the standby supply current to a 150nA trickle. The 5mmx5mm Quad Flat No-Lead (QFN) packaging and the use of small, low value capacitors ensure board space savings. Data rates greater than 250kbps are ensured at worst case load conditions. The ISL4221E is a 1 driver, 1 receiver device and the ISL3232E and ISL4223E are 2 driver, 2 receiver devices that, coupled with the 5mmx5mm QFN package, provide the industry's smallest, lowest power serial port suitable for PDAs, and hand-held applications. The 5mmx5mm QFN requires 40% less board area than a 20 Ld TSSOP, and is nearly 20% thinner. The ISL4221E and ISL4223E versions feature an automatic powerdown function that powers down the on-chip power supply and driver circuits. Automatic powerdown occurs when an attached peripheral device is shut off or the RS-232 cable is removed, and conserves system power automatically without changes to the hardware or operating system. The ISL4221E and ISL4223E power back up automatically when a valid RS-232 voltage is applied to any receiver input.