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XR32220EBER-L

Public Made by Adom

by adom

MaxLinear RS232 ICs, QFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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XR32220EBER-L

MaxLinear · RS232 ICs · QFN-24(4x4)

XR32220EBER-L from MaxLinear, in a QFN-24(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 NC unconnected No connect, not connected to the die; can be left floating or tied to GND or VCC.
2 NC unconnected No connect, not connected to the die; can be left floating or tied to GND or VCC.
3 R1IN input RS-232 receiver input with an internal 5KΩ pull-down and ±15kV ESD protection.
4 R2IN input RS-232 receiver input with an internal 5KΩ pull-down and ±15kV ESD protection.
5 T1OUT output RS-232 driver output with ±15kV ESD protection.
6 T2OUT output RS-232 driver output with ±15kV ESD protection.
7 NC unconnected No connect, not connected to the die; can be left floating or tied to GND or VCC.
8 NC unconnected No connect, not connected to the die; can be left floating or tied to GND or VCC.
9 T2IN input TTL/CMOS driver input; unused driver inputs should be connected to GND or VL.
10 T1IN input TTL/CMOS driver input; unused driver inputs should be connected to GND or VL.
11 R2OUT output TTL/CMOS receiver output.
12 R1OUT output TTL/CMOS receiver output.
13 Status output TTL/CMOS level output that goes LOW when no valid RS-232 levels are present at R1IN or R2IN.
14 Shutdown input TTL/CMOS input; driving it low puts the device into shutdown, tri-stating the drivers and disabling the charge pump, and driving it high gives normal operation.
15 Online input TTL/CMOS input; a low input enables Auto On-Line mode and a high input disables it.
16 C1- passive Negative terminal of the voltage doubler charge pump capacitor.
17 GND power_in Supply ground; the exposed paddle must also be connected to ground on the PCB.
18 VL power_in I/O logic interface supply, 1.65V to 5.5V with VL ≤ VCC.
19 VCC power_in Power supply, 3.0V to 5.5V.
20 V+ power_out Regulated positive charge pump rail at +5.5V.
21 C1+ passive Positive terminal of the voltage doubler charge pump capacitor.
22 C2+ passive Positive terminal of the inverting charge pump capacitor.
23 C2- passive Negative terminal of the inverting charge pump capacitor.
24 V- power_out Regulated negative charge pump rail at -5.5V.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer MaxLinear
Package QFN-24(4x4)
Category Communication Interface Chip
Pins 25

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Current, Auto On-Line enabled ICC1 1 10 µA All RxIN open, Online = GND, Shutdown = VL, VCC = VL = 3.3V, TxIN = VL or GND 3
Supply Current, Shutdown ICC2 1 10 µA Shutdown = GND, VCC = VL = 3.3V, TxIN = VL or GND 3
Supply Current, Auto On-Line disabled ICC3 0.3 1 mA Online = Shutdown = VL, no load, VCC = VL = 3.3V, TxIN = VL or GND 3
Input Leakage Current IIL -1 0.01 1 µA TxIN, Online, Shutdown; TAMB = 25°C, VIN = 0V to VL 3
Output Leakage Current (Status, RxOUT) IOL -10 0.05 10 µA Status, RxOUT (Receivers disabled); VOUT = 0V to VL 3
Output Low Voltage VOL 0.4 V Status, RxOUT; IOUT = 1.5mA 3
Output Voltage Swing VSWING -5 5.4 V All drivers outputs loaded with 3KΩ to GND 3
Output Resistance OR 300 Ω VCC = V+ = V- = 0V, VOUT = ±2V 3
Output Short-Circuit Current IOSC 35 60 mA VOUT = 0V 3
Output Leakage Current (Driver) IOL -25 25 µA VCC = 0V or 3.0V to 5.5V, VOUT = ±12V 3
Input Voltage Range IVR -15 15 V 3
Input Low Voltage (receiver) VIL 0.6 1.2 V VCC = 3.3V 3
Input Low Voltage (receiver) VIL 0.8 1.5 V VCC = 5.0V 3
Input High Voltage (receiver) VIH 1.5 2.4 V VCC = 3.3V 3
Input High Voltage (receiver) VIH 1.8 2.4 V VCC = 5.0V 3
Receiver Input Hysteresis RXHYS 0.3 V 3
Receiver Input Resistance RXR 3 5 7 KΩ 3
Receiver Threshold to STATUS high level RXSTSH -2.7 2.7 V ONLINE = GND, SHUTDOWN = VL, VL = VCC 4
Receiver Threshold to STATUS low level RXSTSL -0.3 0.3 V ONLINE = GND, SHUTDOWN = VL, VL = VCC 4
Receiver Threshold to STATUS high tSTSH 0.2 µs Figure 11 4
Receiver Threshold to STATUS low tSTSL 30 µs Figure 11 4
Receiver Thresholds to Drivers Enabled tONLINE 30 µs Figure 11, charge pump fully discharged when receiver threshold crossed 4
Receiver Thresholds to Drivers Disabled tOFFLINE 35 µs Figure 11 4
Maximum Output Frequency (Speed B) fMAX 250 Kbps RL = 3KΩ, CL = 1000pF, 1 driver active 4
Receiver Propagation Delay (high to low) tPHL 0.15 µs Receiver input (<10ns rise/fall) to Receiver output, CL = 150pF 4
Receiver Propagation Delay (low to high) tPLH 0.15 µs Receiver input (<10ns rise/fall) to Receiver output, CL = 150pF 4
Receiver Skew tRXSKEW 50 ns /tPHL - tPLH/ 4
Receiver Output Enable Time tRXOE 200 ns Normal operation 4
Receiver Output Disable Time tRXOD 200 ns Normal operation 4
Driver Skew (Speed B) tTXSKEW 100 500 ns /tPHL - tPLH/ (Driver propagation delays) 4
Transition-Region Slew Rate (Speed B) TXSLEW 6 30 V/µs VCC = 3.3V, RL = 3KΩ to 7KΩ, CL = 150pF to 1000pF, Measured from -3.0V to +3.0V or +3.0V to -3.0V 4
Supply Voltage VCC (absolute maximum) VCC -0.3 6 V 2
V+ (absolute maximum) V+ -0.3 7 V 2
V- (absolute maximum) V- -7 0.3 V 2
V+ + /V-/ V+ + /V-/ 13 V 2
ICC (DC VCC or GND current) ICC -100 100 mA 2
Maximum Junction Temperature 150 °C 2
Input Voltages TxIN, ONLINE, Shutdown -0.3 6 V 2
Input Voltage RxIN -15 15 V 2
Output Voltage TxOUT -13.2 13.2 V 2
Output Voltage RxOUT, Status -0.3 6 V 2
ESD HBM (RS-232 Bus pins) -15 15 kV Human Body Model 2
ESD IEC61000-4-2 Air Discharge (RS-232 Bus pins) -15 15 kV IEC61000-4-2 Air Discharge 2
ESD IEC61000-4-2 Contact Discharge (RS-232 Bus pins) -8 8 kV IEC61000-4-2 Contact Discharge 2
Storage Temperature -65 150 °C 2
Operating Temperature Range -40 125 °C 2
VCC Supply Range VCC 3 5.5 V 2
VL I/O Supply Range VL 1.65 5.5 V VL ≤ VCC 2

CAD (KiCad official)

  • Symbol: XR32220EBER-L
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
  • 3D model: QFN-24(4x4) (KiCad packages3D, STEP)
  • 3D model files: xr32220eber-l-etched.step / xr32220eber-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xr32220eber-l.step / xr32220eber-l.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: MaxLinear datasheet (14 pp, sha256 0dba5b1f1d7a7270, retrieved 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF