STLV3243E STMICROELECTRONICS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 13

Technical content

I ESD PROTECTION FOR RS-232 I/O PINS: ±8KV IEC 1000-4-2 CONTACT DISCHARGE ±15KV HUMAN BODY MODEL I 1µA SUPPLY CURRENT ACHIEVED WHEN IN AUTO-POWERDOWN I 250Kbps MINIMUM GUARANTEED DATA RATE I GUARANTEED 6V/µs SLEW RATE RANGE I GUARANTEED MOUSE DRIVEABILITY I 0.1µF EXTERNAL CAPACITORS I MEET EIA/TIA-562 SPECIFICATIONS I AVAILABLE IN FLIP-CHIP28 PACKAGES

DESCRIPTION

The STLV3243E device consists of 3 drivers, 5 receivers and a dual charge-pump circuit. All transmitter outputs and receiver inputs are protected up to ±8KV USING IEC 1000-4-2 contact discharge and ±15KV using the Human Body Model. The receiver R2 is always active to implement a wake-up feature for serial port. The device is guaranteed to run at data rates of 250kbps while maintaining RS-562 output levels. The Auto-powerdown feature operates when FORCEON is low and FORCEOFF is high. During this operation mode, if the device does not sense a valid RS-562 signal, the driver outputs are disabled. If FORCEOFF is set low, both drivers and receivers (expert R2B) are shut off, and supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drives causes the auto-powerdown condition to occur. Auto-powerdown can be disabled when FORCEON and FORCEOFF are high, and this should be done when driving a serial mouse. With Auto-powerdown enabled, the device is automatically activated when a valid signal is applied to any receiver input. Typical applications are notebooks, PDAs, smart-phones, hand-held equipment, palmtop computers, peripherals, battery-powered equipment, and printers. Table 1: Order Codes Type Temperature Range Package Comments STLV3243EBJR -40 to 85 °C FLIP-CHIP28 (6x5mm) 2500 parts per reel STLV3243E ±15KV ESD PROTECTED 2.3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN Flip-Chip28 Rev. 2

Table 2: Pin Description PlN N° SYMBOL NAME AND FUNCTION A1 R2 IN Second Receiver Input Voltage A2 R3 IN Third Receiver Input Voltage A3 R4 IN Fourth Receiver Input Voltage A4 R5 IN Fifth Receiver Input Voltage A5 T1 OUT First Transmitter Output Voltage A6 T2 OUT Second Transmitter Output Voltage B1 V- -5.5V Generated by the Charge Pump B2 R1 IN First Receiver Input Voltage B3 T3 OUT Third Transmitter Output Voltage B4 T3 IN Third Transmitter Input Voltage B5 T1 IN First Transmitter Input Voltage B6 T2 IN Second Transmitter Input Voltage C1 C 2+ Positive Terminal of Inverting Charge Pump Capacitor C2 C 2- Negative Terminal of Inverting Charge Pump Capacitor C5 R4 OUT Fourth Receiver Output Voltage C6 R5 OUT Fifth Receiver Output Voltage D1 C 1+ Positive Terminal of Voltage- Charge Pump Capacitor D2 V+ 5.5V Generated by the Charge Pump D3 V CC Supply Voltage D4 FORCEON Drive high to override automatic circuitry keeping transmitters on (FORCEOFF must be high) D5 R1 OUT First Receiver Output Voltage D6 R3 OUT Third Receiver Output Voltage E1 GND Ground E2 C 1- Negative Terminal of Voltage- Charge Pump Capacitor E3 FORCEOFF Drive low to shut down transmitters and on-board power supply. This over-rides all automatic circuitry and FORCEON E4 INVALID Output of the valid signal detector. Indicates if a valid RS-232 level is present on receiver inputs logic "1" E5 R2OUTB Non-inverting Complementary Receiver Output, always active for wake-up E6 R2 OUT Second Receiver Output Voltage

Figure 1: Pin Configuration Table 3: Invalid Truth Table Table 4: Output Control Truth Table RS-232 SIGNAL PRESENT AT ANY RECEIVER INPUT INVALID OUTPUT YES H NO L FORCE ON FORCE OFF VALID RECEIVER LEVEL OPERATION STATUS TOUT ROUT R2OUTB X 0 X Shutdown (Force OFF) HIGH Z HIGH Z ACTIVE

11 X Normal Operating (Force

ON) ACTIVE ACTIVE ACTIVE

01 Y E S Normal Operating

(Auto-powerdown) ACTIVE ACTIVE ACTIVE

01 N O Shutdown (Auto-power-

down) HIGH Z ACTIVE ACTIVE FLIP-CHIP 6x5 (bottom view, bumps side)

Table 5: Absolute Maximum Ratings Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditi on is not implied. Table 6: ESD Performance: Transmitter Outputs, Receiver Inputs Table 7: Electrical Characteristics (C1 - C4 = 0.1µF, VCC = 2.3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to T A = 25°C) Table 8: Logic Input Electrical Characteristics (C1 - C4 = 0.1µF, VCC = 2.3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to T A = 25°C) Symbol Parameter Value Unit VCC Supply Voltage -0.3 to 6 V V+ Doubled Voltage Terminal (V CC -0.3) to 7 V V- Inverted Voltage Terminal 0.3 to -7 V V+ +|V-| 13 V FORCEON, FORCEOFF, TIN Input Voltage -0.3 to 6 V RIN Receiver Input Voltage Range ± 25 V TOUT Transmitter Output Voltage Range ± 13.2 V ROUT ROUTB INVALID Receiver Output Voltage Range -0.3 to (V CC + 0.3) V tSHORT Short Circuit Duration on TOUT (one at a time) Continuous Tstg Storage Temperature Range -65 to 150 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit ESD ESD Protection Voltage Human Body Model ± 15 KV ESD ESD Protection Voltage IEC 1000-4-2 (Contact Discharge) ± 8K V Symbol Parameter Test Conditions Min. Typ. Max. Unit IASHDN Supply Current Auto-powerdown FORCEOFF = GND FORCEON = VCC All R_IN open or grounded 11 0 µA ISUPPLY Supply Current FORCEON = FORCEOFF = VCC 0.3 1 mA ISHDN Shutdown Supply Current FORCEOFF = GND 1 10 µA Symbol Parameter Test Conditions Min. Typ. Max. Unit VTIL Input Logic Threshold Low T-IN, FORCEON, FORCEOFF, VCC = 3.0V VCC = 2.3V 0.8 0.5 V V VTIH Input Logic Threshold High T-IN, FORCEON, FORCEOFF VCC = 3.0V VCC = 2.3V 1.4 V V VTHYS Transmitter Input Hysteresis 0.4 V IIL Input Leakage Current T-IN, FORCEON, FORCEOFF ± 0.01 ± 1.0 µA

Table 9: Receiver Outputs Electrical Characteristics (C1 - C4 = 0.1µF, VCC = 2.3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to T A = 25°C) Table 10: Auto-powerdown Electrical Characteristics (C1 - C4 = 0.1µF, VCC = 2.3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to T A = 25°C, FORCEON = GND, FORCEOFF = VCC) Table 11: Transmitter Electrical Characteristics (C1 - C4 = 0.1µF, VCC = 2.3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to T A = 25°C) Symbol Parameter Test Conditions Min. Typ. Max. Unit IOL Output Leakage Current Receiver Disabled ± 0.05 ± 10 µA VOL Output Voltage Low I OUT = 1.6mA 0.4 V VOH Output Voltage High I OUT = -1mA V CC-0.6 V CC-0.1 V Symbol Parameter Test Conditions Min. Typ. Max. Unit VRITE Receiver Input Threshold to INVALID Output Voltage HIGH (Fig. 1) Positive Threshold 2.7 V Negative Threshold 2.7 V VRITD Receiver Input Threshold to INVALID Output Voltage LOW (Fig. 1) -0.3 0.3 V VIOL INVALID Output Voltage LOW IOUT = 1.6mA 0.4 V VIOH INVALID Output Voltage HIGH IOUT = -1mA V CC-0.6 V tWU Receiver or Transmitter Edge Transmitter Enabled (Fig. 1) 100 µs tinvh Receiver Positive or Negative Threshold to INVALID HIGH (Fig. 1) 0.2 µs tinvL Receiver Positive or Negative Threshold to INVALID LOW (Fig. 1) 30 µs Symbol Parameter Test Conditions Min. Typ. Max. Unit VTOUT Output Voltage Swing All Transmitter outputs are loaded with 3KΩ to GND VCC = 3.0V VCC = 2.3V ± 3.7 ± 4.4 ± 3.9 V ROUT Output Resistance V CC = V+ = V- = 0V V OUT = ± 300 10M Ω ISC Output Short Circuit Current V CC = 3.3V ± 40 ± 60 mA IL Output Leakage Current V CC = 0 to 5.5V, transmitter output =±12V, transmitter disabled ± 25 mA VOT Transmitter Output Voltage T1IN = T2IN = GND, T3IN = V CC T3OUT loaded with 3KΩ to GND T1OUT and T2OUT loaded with 2.5mA each ± 3.7 V

Table 12: Receiver Inputs Electrical Characteristics (C1 - C4 = 0.1µF, VCC = 2.3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to T A = 25°C) Table 13: Timing Characteristics (C1 - C4 = 0.1µF, VCC = 2.3 to 3V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to T A = 25°C) Symbol Parameter Test Conditions Min. Typ. Max. Unit VRIN Receiver Input Voltage Operating Range -25 25 V VRIL RS-232 Input Threshold Low TA = 25°C V CC = 3.0V TA = 25°C V CC = 2.3V 0.6 0.4 1.0 0.8 V VRIH RS-232 Input Threshold High TA = 25°C V CC = 3.0V TA = 25°C V CC = 2.3V 1.4 1.2 2.4 2.0 V VRIHYS Input Hysteresis 0.5 V RRIN Input Resistance T A = 25°C 3 5 7 K Ω Symbol Parameter Test Conditions Min. Typ. Max. Unit DR Maximum Data Rate R L = 3KΩ CL= 1000pF one transmitter switching

250 Kbps

Receiver Propagation Delay R IN to ROUT CL = 150pF 0.15 µs tT_SKEW Transmitter Skew 60 ns tR_SKEW Receiver Skew 120 ns SRT Transition Slew Rate T A = 25°C RL = 3K to 7KΩ VCC = 3V measured from +3V to -3V or -3V to +3V CL = 150pF to 1000pF 43 0 V / µs

Figure 2: Application Circuits Table 14: Required Minimum Capacitance Value ( µF) VCC (V) C 1 C2, C3, C4, CBYPASS 2.3 to 3.0 0.1 0.1

Figure 5: Data Rate VCC=2.3V, IO=100mA, CI = 1µF(tantalum), CO=10µF(tantalum)

DIM. mm. mils A 0.58 0.95 22.8 37.4 A1 0.24 9.4 A2 0.65 25.6 D 3.97 4.17 156.3 164.2 D1 2.5 98.4 E 2.47 2.67 97.2 105.1 E1 2 78.7 e 0.45 0.55 17.7 21.7 f 0.23 0.34 9.1 13.4 f1 0.80 0.91 31.5 31.8 Flip-Chip28 MECHANICAL DATA 7385199/A

DIM. mm. inch A 330 12.992 C 12.8 13.2 0.504 0.519 D 20.2 0.795 N 60 2.362 T 18.4 0.882 Ao 2.6 2.8 0.102 0.110 Bo 4.1 4.3 0.161 0.169 Ko 1.1 1.3 0.043 0.051 Po 3.9 4.1 0.153 0.161 P 3.9 4.1 0.153 0.161 Tape & Reel Flip-Chip28 MECHANICAL DATA

Table 15: Revision History Date Revision Description of Changes 02-May-2005 2 The Packages SOP, SSOP and TSSOP have been obsoleted.

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners © 2005 STMicroelectronics - All Rights Reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America