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AiT Semiconductor Inc. A3232 www.ait-ic.com INTERFACE 3V TO 5.5V, 250kbps RS-232 TRANSCEIVERS REV1.0 - JUL Y 2022 RELEASED - - 1 - DESCRIPTION FEATURES The A3232 consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±12kV ESD protection termina to terminal. The A3232 meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3V to 5.5V supply. The A3232 operates at data signaling rates up to 250 kbps. The A3232 is available in SOP16 and TSSOP16 package. RS-232 Bus-terminal ESD protection Exceeds ±12kV (IEC61000-4-2, Contact Discharge) ±15kV (IEC61000-4-2, Air-Gap Discharge) Meets the Requirements of TIA/EIA-232-F standard Operates with 3V to 5.5V Vcc Supply Operates up to 250kbps Two Drivers and Two Receivers External Capacitors: 4 × 0.1 uF Accepts 5V Logic Input With 3.3V Supply Operation Temperature: -40°C ~ +125 °C APPLICATION Industrial PCs Wired Networking Data Center and Enterprise Networking Battery-Powered Systems PDAs, Hand-held Equipment Notebooks, Laptops, Palmtop PCs Printers
ORDERING INFORMATION
SPQ: 2,500pcs/Reel M16 A3232M16R A3232M16VR TSSOP16 SPQ: 2,500pcs/Reel TMX16 A3232TMX16R A3232TMX16VR Note V: Halogen free Package R: Tape & Reel AiT provides all RoHS products FUNCTION BLOCK
AiT Semiconductor Inc. A3232 www.ait-ic.com INTERFACE 3V TO 5.5V, 250kbps RS-232 TRANSCEIVERS REV1.0 - JUL Y 2022 RELEASED - - 2 - PIN DESCRIPTION SOP16, M16 Top View TSSOP16, TMX16 Top View Pin # Symbol I/O Function
1 C1+ - Positive lead of C1 capacitor
2 V+ O Positive charge pump outpu t for storage capacitor only
3 C1– - Negative lead of C1 capacitor
4 C2+ - Positive lead of C2 capacitor
5 C2– - Negative lead of C2 capacitor
6 V– O Negative charge pump outpu t for storage capacitor only
7 DOUT2 O RS232 Driver Output
8 RIN2 I RS232 Receiver Input
9 ROUT2 O TTL/CMOS Receiver Output
10 DIN2 I TTL/CMOS Driver Input
11 DIN1 I TTL/CMOS Driver Input
12 ROUT1 O TTL/CMOS Receiver Output
13 RIN1 I RS232 Receiver Input
14 DOUT1 O RS232 Driver Output
15 GND - Ground
16 VCC - Supply Voltage
AiT Semiconductor Inc. A3232 www.ait-ic.com INTERFACE 3V TO 5.5V, 250kbps RS-232 TRANSCEIVERS REV1.0 - JUL Y 2022 RELEASED - - 3 - ABSOLUTE MAXIMUM RATINGS Parameter Symbol Min. Max. Units Supply voltage VCC -0.3 6 V Positive output supply voltage V+ -0.3 7 V Negative output supply voltage V– 0.3 -7 V Supply voltage difference V+ – V– 13 V Input voltage Drivers VI -0.3 6 V Receivers -25 25 V Output voltage Drivers VO -13.2 13.2 V Receivers -0.3 VCC + 0.3 V Operating virtual junction temperature TJ 150 °C Storage temperature Tstg -65 150 °C Stress beyond above listed “Absolut e Maximum Ratings” may lead permanent damage to the device. These are stress ratings only a nd operations of the device at these or any other conditions beyond those indicated in the operati onal sections of the specificat ions are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS Parameter Symbol Min. Max. Units Supply voltage VCC = 3.3 V 3 3.6 V VCC = 5 V 4.5 5.5 Driver high-level input voltage DIN VCC = 3.3 V VIH 2 5.5 V VCC = 5 V 2.4 5.5 Driver low-level input DIN VIL 0 0.8 V Receiver input voltage RIN VI -2.5 25 V Operating free-air temperature TA -40 125 ℃
AiT Semiconductor Inc. A3232 www.ait-ic.com INTERFACE 3V TO 5.5V, 250kbps RS-232 TRANSCEIVERS REV1.0 - JUL Y 2022 RELEASED - - 4 -
ELECTRICAL CHARACTERISTICS
otherwise noted. Parameter Symbol Conditions Min Typ. Max Units Supply current ICC No load, VCC = 3.3 V or 5 V 1.5 mA Driver High-level output voltage V OH DOUT at RL = 3 kΩ to GND, DIN = GND 5 5.4 V Low-level output voltage V OL DOUT at RL = 3 kΩ to GND, DIN = VCC -5 -5.4 V High-level input current I IH V I = VCC ±0.01 ±1 μA Low-level input current I IL VI at GND ±0.01 ±1 μA Short-circuit output current I OS VCC = 3.6 V, VO = 0 V ±30 ±60 mA VCC = 5.5 V, VO = 0 V Output resistance ro VCC, V+, V– = 0 V, VO = ±2 V 300 10M Ω Receiver High-level output voltage VOH I OH = –1 mA VCC –0 . 6 VCC – 0.1 V Low-level output voltage VOL IOL = 1.6 mA 0.4 Positive-going input Negative-going input Input hysteresis (VIT+ –VIT–) V hys 0.4 V Input resistance r i VI = ±3 V to ±25 V 3 5 7 kΩ Switching Maximum data rate RL = 3 kΩ, CL = 1000 pF, One DOUT switching 250 kbps Driver pulse skew tsk(p) RL = 3 kΩ to 7 kΩ, CL = 150 pF to 2500 pF, see Fig2. 100 ns Driver slew rate, transition region SR(tr) RL = 3 kΩ to 7 k Ω VCC = 3.3 V CL = 150 pF to 1000 pF 6 30 V/μs CL = 150 pF to 2500 pF 4 30 Receiver propagation delay time, low- to high-level output tPLH CL = 150 pF see Fig 3. 150 ns Receiver propagation delay time, high- to low-level output tPHL 150 ns Receiver pulse skew t sk(p) 60 ns * Short-Circuits durations should be controlled to prevent exceeding the device absolute power dissipation ratings, and not more than one output should be shorted at a time **Pulse skew is defined as |t PLH – tPHL| of each channel of the same device.
AiT Semiconductor Inc. A3232 www.ait-ic.com INTERFACE 3V TO 5.5V, 250kbps RS-232 TRANSCEIVERS REV1.0 - JUL Y 2022 RELEASED - - 5 - TYPICAL APPLICATION Fig1. Typical Operating Circuit VCC C1 C2, C3, C4 3.3 V ± 0.3 V 0.1 µF 0.1 µF 5 V ± 0.5 V 0.047 µF 0.33 µF 3 V to 5.5 V 0.1 µF 0.47 µF Non Polorized ceramic capacitors are acceptable. If polarized tantalum or electrolytic capacitors are used, then should be connected as shown. Fig 2. Driver Pulse Skew Fig 3. Receiver Propagation Delay Times
AiT Semiconductor Inc. A3232 www.ait-ic.com INTERFACE 3V TO 5.5V, 250kbps RS-232 TRANSCEIVERS REV1.0 - JUL Y 2022 RELEASED - - 6 -
PACKAGE INFORMATION
Dimension in SOP16 (Unit: mm) Symbol Min. Max. A - 1.750 A1 0.100 0.250 A2 1.350 1.550 A3 0.550 0.750 b 0.360 0.510 b 1 0.350 0.450 c 0.180 0.250 c 1 0.170 0.230 D 9.800 10.00 E 5.800 6.200 E1 3.800 4.000 e 1.220 1.320 L 0.450 0.800 L1 1.04REF L2 0.25BSC R 0.070 - R1 0.070 - h 0.300 0.500 θ 0 o 8 o θ1 6 o 1 0 o θ2 6 o 1 0 o θ3 5 o 9 o θ4 5 o 9 o
AiT Semiconductor Inc. A3232 www.ait-ic.com INTERFACE 3V TO 5.5V, 250kbps RS-232 TRANSCEIVERS REV1.0 - JUL Y 2022 RELEASED - - 7 - Dimension in TSSOP16 (Unit: mm) Symbol Min. Max. A - 1.200 A1 0.050 0.150 A2 0.900 1.050 A3 0.340 0.540 b 0.200 0.280 b1 0.200 0.240 c 0.100 0.190 c1 0.100 0.150 D 4.860 5.060 E 6.200 6.600 E1 4.300 4.500 e 0.650 BSC L 0.450 0.750 L1 1.000 REF L2 0.250 BSC R 0.090 - R1 0.090 - S 0.200 - θ1 0 8 θ2 10 1 4 θ3 10 1 4
AiT Semiconductor Inc. A3232 www.ait-ic.com INTERFACE 3V TO 5.5V, 250kbps RS-232 TRANSCEIVERS REV1.0 - JUL Y 2022 RELEASED - - 8 - IMPORTANT NOTICE AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to discontinue any integrated circu it product or service without n otice, and advises its customers to obtain the latest version of relevant information to verify, before placin g orders, that the information being relied on is current. AiT Semiconductor Inc.'s integrat ed circuit products are not de signed, intended, authorized, or warranted to be suitable for use in life support applications, devices or sy stems or other critical applications. Use of AiT products in such applications is understood to be fully at the risk of the customer. As used herein may involve potential risks of death, personal injury, or server property, or environmental damage. In order to minimize risks associated with the custom er's applications, the customer should provide adequate design and operating safeguards. AiT Semiconductor Inc. assumes to no liability to customer prod uct design or application support. AiT warrants the performance of its products of the specifications applicable at the time of sale.