ST3232BDR

ST3232BDR UMW | Alldatasheet

Document overview

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Technical content

3.0V TO 5.5V LOW POWER MULTICHANNEL RS-232 LINE TRANSCEIVERS USING FOR 0.1 μF EXTERNAL CAPACITORS

DESCRIPTION

The UMW ST3232BDR has two receivers and two drivers, and a dual charge-pump circuit. The device 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 3.0V to 5.5V supply. The device operates at data signaling rates up to 250kbit/s and a maximum of 35V/μs driver output slew rate.

FEATURES

• Exceeds ±8KV ESD Protection(HBM) for RS-232 I/O Pins * Meets the Requirements of TIA/EIA-232-F and ITU V.28 Standards * Operates With 3.0V to 5.5V VCC Supply * Operates Up To 250kbit/s Data Rate * Two Drivers and Two Receivers * External Capacitors 4×0.1μF * Accepts 5.0V Logic Input With 3.3V Supply SOP-16 UMW ST3232 R www.umw-ic.com 1 友台半导体有限公司

N PIN NO. PIN NAME DESCRIPTION

1 C1+ Positive Terminal of Voltage-Doubler Charge-Pump Capacitor

2 V+ +5.5V Generated by the Charge Pump

3 C1- Negative Terminal of Voltage-Doubler Charge-Pump Capacitor

5 C2- Negative Terminal of Inverting Charge-Pump Capacitor

6 V- -5.5V Generated by the Charge Pump

7 DOUT2 RS-232 Driver Outputs

9 ROUT2 TTL/CMOS Receiver Outputs

10 DIN2 TTL/CMOS Driver Inputs

11 DIN1 TTL/CMOS Driver Inputs

13 RIN1 RS-232 Receiver Inputs

15 GND Ground

16 V CC +3.0V to +5.5V Supply Voltage

4 C2+ Positive Terminal of Inverting Charge-Pump Capacitor

8 RIN2 RS-232 Receiver Inputs

12 ROUT1 TTL/CMOS Receiver Outputs

14 DOUT1 RS-232 Driver Outputswww.umw-ic.com 2 友台半导体有限公司 UMW ST3232 UMW ST3232 R

5kΩ 5kΩ UMW ST3232 www.umw-ic.com 3 友台半导体有限公司 UMW ST3232 R

ABSOLUTE MAXIMUM RATING [Over operating free-air temperature range (unless otherwise noted)] PARAMETER SYMBOL RATINGS UNIT Supply Voltage Range V CC -0.3 ~ +6.0 V Positive Output Supply Voltage Range (Note 2) V+ -0.3 ~ +7.0 V Negative Output Supply Voltage Range (Note 2) V- +0.3 ~ -7.0 V Supply Voltage Difference (Note 2) V+ - V- +13 V Drivers -0.3 ~ +6.0 V Input Voltage Receivers VIN -25 ~ +25 V Drivers -13.2 ~ +13.2 V Output Voltage Receivers VOUT -0.3 ~ VCC+0.3 V Operating Virtual Junction Temperature T J +150 °C Storage Temperature T STG -65 ~ + 150 °C Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. All voltages are with respect to network GND. THERMAL DATA PARAMETER SYMBOL RATING UNIT SOP-16 105 Junction to Ambient θJA °C/W RECOMMENDED OPERATING CONDITIONS (See Note & Table 1) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT VCC=3.3V 2.0 Driver and Control High-level Input Voltage VIH DIN VCC=5.5V 2.4 V Driver and Control Low-level Input Voltage VIL DIN 0.8 V Driver and Control Input Voltage V IN DIN 5.5 V Receiver Input Voltage V RIN -25 25 V Operating Free-Air Temperature T A 0 70 °C 4 友台半导体有限公司 UMW ST3232 R

ELECTRICAL CHARACTERISTICS [(over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 3 & Table 1)] PARAMETER SYMBOL TEST CONDITIONS MIN TYP (Note 1) MAX UNIT Supply Current I CC No load 0.3 1.0 mA DRIVER SECTION High-Level Output Voltage V OH DOUT at R L=3kΩ to GND, DIN=GND +5.0 +5.4 V Low-Level Output Voltage V OL DOUT at R L=3kΩ to GND, DIN=VCC -5.0 -5.4 V High-Level Input Current I OH V I=VCC ±0.01 ±1 μA Low-Level Input Current I OL V I at GND ±0.01 ±1 μA VCC=3.6V, VOUT=0V ±35 ±60 mA Short-Circuit Output Current (Note 2) IOS VCC=5.5V, VOUT=0V ±35 ±60 mA Output Resistance r O V CC, V+ and V- =0V, VOUT=±2.0V 300 10M Ω RECEIVER SECTION High-Level Output Voltage V OH I OH=-1.0mA VCC-0.6V V CC- 0.1V V Low-Level Output Voltage V OL I OL=1.6mA 0.4 V VCC=3.3V 1.5 2.4 V Positive-Going Input Threshold Voltage VIT+ VCC=5.0V 1.8 2.4 V VCC=3.3V 0.6 1.2 V Negative-Going Input Threshold Voltage VIT- VCC=5.0V 0.8 1.5 V Input Hysteresis V HYS V IT+~VIT- 0.3 V Input Resistance R I V I=±3.0V~±25V 3 5 7 k Ω Notes: 1. All typical values are at VCC=3.3V or VCC=5.0V, and TA=25°C. 2. Short-circuit 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. 4. Pulse skew is defined as |tPLH−tPHL| of each channel of the same device. SWITCHING CHARACTERISTICS [over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 3 and Table 1)] PARAMETER SYMBOL TEST CONDITIONS MIN TYP (Note 1) MAX UNIT DRIVER SECTION Maximum Data Rate CL=1000pF, RL=3kΩ, One Driver Switching 120 250 Kbit/s Pulse Skew (Note 4) t SK(p) C L=220pF~2500pF, RL =3kΩ~7kΩ 300 ns CL=220pF~1000pF 5 35 Slew Rate, Transition Region SR(tr) RL =3kΩ~7kΩ, VCC=3.3V CL=220pF~2500pF 3 35 V/μs RECEIVER SECTION Propagation Delay Time, Low- to High-Level Output tPLH C L=150pF 300 ns Propagation Delay Time, High- to Low-Level Output tPHL C L=150pF 300 ns Output Enable Time t EN C L=150pF, RL=3kΩ 200 ns Output Disable Time t DIS C L=150pF, RL=3kΩ 200 ns Pulse Skew (Note 4) t SK(P) |t PLH−tPHL| 300 ns Notes: 1. All typical values are at VCC=3.3V or VCC=5.0V, and TA=25°C. 2. Short-circuit 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. 4. Pulse skew is defined as |tPLH−tPHL| of each channel of the same device. www.umw-ic.com 5 友台半导体有限公司 UMW ST3232 R

TYPICAL APPLICATION CIRCUIT Table1. Typical Operating Circuit and Capacitor Values VCC (V) C1 (µF) C2, C3, C4 (µF) C BYPASS (µF) www.umw-ic.com 6 友台半导体有限公司 UMW ST3232 UMW ST3232 R

ORDERING INFORMATION

Ordering Number Package Baseqty Packing PACKAGE: SOP-16 UNIT: mm L E1 E e b c D A2 A SYMBOL MILLIMETER MIN NOM MAX A 1.80 A1 0.10 0.15 0.25 A2 1.25 1.45 1.65 b 0.33 0.51 c 0.17 0.25 D 9.50 10.20 E 5.80 6.00 6.20 E1 3.70 4.10 e 1.27BSC L 0.45 0.60 0.80 UMW ST3232BDR SOP-16 2500 Tape and reelwww.umw-ic.com 7 友台半导体有限公司 UMW ST3232 R