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ICL3221EIVZ-T7A

Public Made by Adom

by adom

RENESAS RS232 ICs, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

markdown

ICL3221EIVZ-T7A

RENESAS · RS232 ICs · TSSOP-16

ICL3221EIVZ-T7A from RENESAS, in a TSSOP-16. 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 EN input Active-low receiver enable control, TTL/CMOS compatible input (logic low max 0.8V).
2 C1+ passive External capacitor (voltage doubler) is connected to this lead.
3 V+ power_out Internally generated positive transmitter supply (+5.5V).
4 C1- passive External capacitor (voltage doubler) is connected to this lead.
5 C2+ passive External capacitor (voltage inverter) is connected to this lead.
6 C2- passive External capacitor (voltage inverter) is connected to this lead.
7 V- power_out Internally generated negative transmitter supply (-5.5V).
8 R1IN input ±15kV ESD protected RS-232 compatible receiver input with 5kΩ input resistance.
9 R1OUT output TTL/CMOS level receiver output.
10 INVALID output Active-low output that indicates no valid RS-232 levels are present on any receiver input.
11 T1IN input TTL/CMOS compatible transmitter input.
12 FORCEON input Active-high input to override automatic power-down circuitry, keeping transmitters active (FORCEOFF must be high).
13 T1OUT output ±15kV ESD protected RS-232 level (nominally ±5.5V) transmitter output.
14 GND power_in Ground connection.
15 VCC power_in System power supply input (3.0V to 5.5V).
16 FORCEOFF input Active low to shut down transmitters and on-chip power supply, overriding automatic circuitry and FORCEON.

Key specifications

Parameter Value
Manufacturer RENESAS
Package TSSOP-16
Category Communication Interface Chip/UART/485/232
Pins 16

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 Voltage VCC 3.3 5 V 12
Operating Temperature Range (ICL32xxEIX) -40 85 °C 12
Rx Input Voltage -15 15 V 12
VCC to GND VCC -0.3 6 V 11
V+ to GND V+ -0.3 7 V 11
V- to GND V- 0.3 -7 V 11
V+ to V- 14 V 11
Input Voltages TIN, FORCEOFF, FORCEON, EN -0.3 6 V 11
Input Voltage RIN -28 28 V 11
Output Voltage TOUT -13.2 13.2 V 11
Output Voltage ROUT, INVALID -0.3 V max printed as VCC + 0.3 11
Maximum Junction Temperature 150 °C Plastic Package 11
Storage Temperature Range -65 150 °C 11
Thermal Resistance 16 Ld TSSOP θJA 145 °C/W Typical, low-effective thermal conductivity test board in free air 11
Supply Current, Automatic Power-Down 1 10 µA All RIN Open, FORCEON = GND, FORCEOFF = VCC, 25°C 12
Supply Current, Power-Down 1 10 µA FORCEOFF = SHDN = GND, 25°C 12
Supply Current, Automatic Power-Down Disabled 0.3 1 mA All Outputs Unloaded, FORCEON = FORCEOFF = SHDN = VCC, VCC = 3.15V, ICL3221, 25°C 12
Input Logic Threshold Low 0.8 V TIN, FORCEON, FORCEOFF, EN, SHDN, Full 12
Input Logic Threshold High 2 V VCC = 3.3V, Full 12
Input Logic Threshold High 2.4 V VCC = 5.0V, Full 12
Input Leakage Current -1 0.01 1 µA TIN, FORCEON, FORCEOFF, EN, SHDN, all but ICL3232EF, Full 12
Output Leakage Current -10 0.05 10 µA FORCEOFF = GND or EN = VCC, Full 12
Output Voltage Low 0.4 V IOUT = 1.6mA, Full 12
Receiver Input Thresholds to Enable Transmitters -2.7 2.7 V ICL32xxE Powers Up, Full 12
Receiver Input Thresholds to Disable Transmitters -0.3 0.3 V ICL32xxE Powers Down, Full 12
INVALID Output Voltage Low 0.4 V IOUT = 1.6mA, Full 12
Receiver Threshold to Transmitters Enabled Delay tWU 100 µs 25°C 12
Receiver Threshold to INVALID High Delay tINVH 1 µs 25°C 12
Receiver Threshold to INVALID Low Delay tINVL 30 µs 25°C 13
Receiver Input Voltage Range -25 25 V 25°C 13
Receiver Input Threshold Low 0.6 1.2 V VCC = 3.3V, 25°C 13
Receiver Input Threshold Low 0.8 1.5 V VCC = 5.0V, 25°C 13
Receiver Input Threshold High 1.5 2.4 V VCC = 3.3V, 25°C 13
Receiver Input Threshold High 1.8 2.4 V VCC = 5.0V, 25°C 13
Receiver Input Hysteresis 0.5 V 25°C 13
Receiver Input Resistance 3 5 7 kΩ 25°C 13
Transmitter Output Voltage Swing 5 5.4 V All Transmitter Outputs Loaded with 3kΩ to Ground, Full 13
Transmitter Output Resistance 300 Ω VCC = V+ = V- = 0V, Transmitter Output = ±2V, Full 13
Transmitter Output Short-Circuit Current 35 60 mA Full 13
Transmitter Output Leakage Current -25 25 µA VOUT = ±12V, VCC = 0V or 3V to 5.5V, Automatic Power-Down or FORCEOFF = SHDN = GND, Full 13
Maximum Data Rate 250 500 kbps RL = 3kΩ, CL = 1000pF, One Transmitter Switching, Full 13
Receiver Propagation Delay tPHL tPHL 0.15 µs Receiver Input to Receiver Output, CL = 150pF, 25°C 13
Receiver Propagation Delay tPLH tPLH 0.15 µs Receiver Input to Receiver Output, CL = 150pF, 25°C 13
Receiver Output Enable Time 200 ns Normal Operation, 25°C 13
Receiver Output Disable Time 200 ns Normal Operation, 25°C 13
Transmitter Skew 100 ns tPHL to tPLH, 25°C 13
Receiver Skew 50 ns tPHL to tPLH, 25°C 13
Transition Region Slew Rate 4 30 V/µs VCC = 3.3V, RL = 3kΩ to 7kΩ, 3V to -3V or -3V to 3V, CL = 150pF to 2500pF, 25°C 13
Transition Region Slew Rate 6 30 V/µs VCC = 3.3V, RL = 3kΩ to 7kΩ, 3V to -3V or -3V to 3V, CL = 150pF to 1000pF, 25°C 13
ESD RS-232 Pins Human Body Model 15 kV TOUT, RIN, 25°C 13
ESD RS-232 Pins IEC61000-4-2 Contact 8 kV TOUT, RIN, 25°C 13
ESD RS-232 Pins IEC61000-4-2 Air Gap 15 kV TOUT, RIN, 25°C 13
ESD All Other Pins Human Body Model 2 kV 25°C 13

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin C2- External capacitor (voltage inverter) is connected to this lead TIN TTL/CMOS compatible transmitter inputs 10

CAD (KiCad official)

  • Symbol: ICL3221EIVZ-T7A
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: icl3221eivz-t7a-etched.step / icl3221eivz-t7a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); icl3221eivz-t7a.step / icl3221eivz-t7a.glb are the bare package body.

Provenance

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

  • Datasheet: RENESAS datasheet (39 pp, sha256 d263fc23b7ec8030, retrieved 2026-10-30, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), 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