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QFN Packaged, ±15kV ESD Protected, +2.7V to +3.6V, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply Pin

Package Information

CAD Model: View CAD Model
Pkg. Type: QFN
Pkg. Code: LJQ
Lead Count (#): 32
Pkg. Dimensions (mm): 5.00 x 5.00 x 0.90
Pitch (mm): 0.5

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 2
Pb (Lead) Free Yes
RoHS (ISL3241EIRZ) Download
ECCN (US)
HTS (US)

Product Attributes

Lead Count (#) 32
Carrier Type Tube
Moisture Sensitivity Level (MSL) 2
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C) -40 to +85°C
Auto Shutdown No
Charge-pump Capacitance Value (µF) 0.1
Data Rate (Mbps) 0.25
High ESD Protection Yes
IS Disabled (μA) 1
IS Enabled (mA) 0.3
Length (mm) 5
MOQ 2400
Manual Shutdown Yes
Pitch (mm) 0.5
Pkg. Dimensions (mm) 5.0 x 5.0 x 0.90
Pkg. Type QFN
Qualification Level Standard
Receivers (#) 5
Rx Disable Yes
Supply Voltage Vcc (Min) (V) 2.7
Supply Voltage Vcc Range 2.7-3.6
Thickness (mm) 0.9
Transmitters (#) 3
Width (mm) 5

Description

The Intersil ISL324xE devices are 2. 7V to 3. 6V powered RS-232 transmitters/receivers which meet ElA/TIA-232 and V. 28/V. 24 specifications, even at VCC = 3. 0V. Additionally, 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 POS systems, and notebook and laptop computers where the low operational, and even lower standby, power consumption is critical. Efficient on-chip charge pumps, coupled with manual and automatic power-down functions, reduce the standby supply current to a 0. 5µA trickle. Tiny 5mmx5mm Quad Flat No-Lead (QFN) packaging and the use of small, low value capacitors ensure board space savings as well. Data rates greater than 250kbps are guaranteed at worst case load conditions. ISL324xE are 3 driver, 5 receiver devices that, coupled with the 5x5 QFN package, provide the industry's smallest, lowest power complete serial port. The 5x5 QFN requires 60% less board area than a 28 Ld TSSOP, and is nearly 20% thinner. These devices also include a noninverting always-active receiver for wake-up capability. The ISL3243E features an automatic powerdown function that powers down the on-chip power supply and driver circuits. This occurs when an attached peripheral device is shut off or the RS-232 cable is removed, conserving system power automatically without changes to the hardware or operating system. It powers up again when a valid RS-232 voltage is applied to any receiver input. The ISL324xE feature a VL pin that adjusts the logic pin (see Pin Descriptions on page 2) output levels and input thresholds to values compatible with the VCC powering the external logic (e. g. , a UART). Table 1 summarizes the features of the ISL324xE.