STLV3243E ±15KV ESD PROTECTED 2.3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN ■ ■ ■ ■ ■ ■ ■ ■ ESD PROTECTION FOR RS-232 I/O PINS: ±8KV IEC 1000-4-2 CONTACT DISCHARGE ±15KV HUMAN BODY MODEL 1µA SUPPLY CURRENT ACHIEVED WHEN IN AUTO-POWERDOWN 250Kbps MINIMUM GUARANTEED DATA RATE GUARANTEED 6V/µs SLEW RATE RANGE GUARANTEED MOUSE DRIVEABILITY 0.1µF EXTERNAL CAPACITORS MEET EIA/TIA-562 SPECIFICATIONS 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 Flip-Chip28 disabled. If FORCEOFF is set low, both drivers and receivers (expert R2B) are shut off, and supply current is reduced to 1µA. 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 May 2005 Rev. 2 1/13 STLV3243E Table 2: Pin Description 2/13 PlN N° SYMBOL NAME AND FUNCTION A1 R2IN Second Receiver Input Voltage A2 R3IN Third Receiver Input Voltage A3 R4IN Fourth Receiver Input Voltage A4 R5IN Fifth Receiver Input Voltage A5 T1OUT First Transmitter Output Voltage A6 T2OUT Second Transmitter Output Voltage B1 B2 VR1IN B3 T3OUT B4 T3IN Third Transmitter Input Voltage B5 T1IN First Transmitter Input Voltage B6 T2IN Second Transmitter Input Voltage C1 C2 + Positive Terminal of Inverting Charge Pump Capacitor C2 C2- Negative Terminal of Inverting Charge Pump Capacitor -5.5V Generated by the Charge Pump First Receiver Input Voltage Third Transmitter Output Voltage C5 R4OUT Fourth Receiver Output Voltage C6 R5OUT Fifth Receiver Output Voltage D1 C1 + Positive Terminal of Voltage- Charge Pump Capacitor D2 D3 V+ VCC 5.5V Generated by the Charge Pump Supply Voltage D4 FORCEON D5 R1OUT Drive high to override automatic circuitry keeping transmitters on (FORCEOFF must be high) First Receiver Output Voltage D6 R3OUT Third Receiver Output Voltage E1 E2 GND C1- E3 FORCEOFF E4 INVALID E5 R2OUTB E6 R2OUT Ground Negative Terminal of Voltage- Charge Pump Capacitor Drive low to shut down transmitters and on-board power supply. This over-rides all automatic circuitry and FORCEON Output of the valid signal detector. Indicates if a valid RS-232 level is present on receiver inputs logic "1" Non-inverting Complementary Receiver Output, always active for wake-up Second Receiver Output Voltage STLV3243E Figure 1: Pin Configuration FLIP-CHIP 6x5 (bottom view, bumps side) Table 3: Invalid Truth Table RS-232 SIGNAL PRESENT AT ANY RECEIVER INPUT INVALID OUTPUT YES NO H L Table 4: Output Control Truth Table FORCE ON FORCE OFF VALID RECEIVER LEVEL X 0 X 1 1 X 0 1 YES 0 1 NO OPERATION STATUS TOUT ROUT R2OUTB Shutdown (Force OFF) Normal Operating (Force ON) Normal Operating (Auto-powerdown) Shutdown (Auto-powerdown) HIGH Z HIGH Z ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE HIGH Z ACTIVE ACTIVE 3/13 STLV3243E Table 5: Absolute Maximum Ratings Symbol Parameter VCC Supply Voltage V+ Doubled Voltage Terminal RIN -0.3 to 6 V V 0.3 to -7 13 -0.3 to 6 V V V ± 25 V ± 13.2 V -0.3 to (VCC + 0.3) V Receiver Input Voltage Range Transmitter Output Voltage Range ROUT ROUTB Receiver Output Voltage Range INVALID Short Circuit Duration on TOUT (one at a time) tSHORT Tstg Unit (VCC -0.3) to 7 VInverted Voltage Terminal V+ +|V-| FORCEON, Input Voltage FORCEOFF, TIN TOUT Value Continuous Storage Temperature Range -65 to 150 °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Table 6: ESD Performance: Transmitter Outputs, Receiver Inputs Symbol ESD ESD Parameter ESD Protection Voltage ESD Protection Voltage Test Conditions Human Body Model IEC 1000-4-2 (Contact Discharge) Min. Typ. Max. ± 15 ±8 Unit KV KV 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 TA = 25°C) Symbol IASHDN Parameter Supply Current Auto-powerdown ISUPPLY Supply Current ISHDN Shutdown Supply Current Test Conditions Min. Typ. Max. Unit 1 10 µA 0.3 1 mA 1 10 µA Typ. Max. Unit 0.8 0.5 V V FORCEOFF = GND FORCEON = VCC All R_IN open or grounded FORCEON = FORCEOFF = VCC FORCEOFF = GND 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 TA = 25°C) Symbol VTIL VTIH VTHYS IIL 4/13 Parameter Input Logic Threshold Low Input Logic Threshold High Transmitter Input Hysteresis Input Leakage Current Test Conditions Min. T-IN, FORCEON, FORCEOFF, VCC = 3.0V VCC = 2.3V T-IN, FORCEON, FORCEOFF VCC = 3.0V VCC = 2.3V 2 1.4 V V 0.4 T-IN, FORCEON, FORCEOFF ± 0.01 V ± 1.0 µA STLV3243E 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 TA = 25°C) Symbol Parameter Test Conditions IOL Output Leakage Current Receiver Disabled VOL Output Voltage Low IOUT = 1.6mA VOH Output Voltage High IOUT = -1mA Min. Typ. Max. Unit ± 0.05 ± 10 µA 0.4 V VCC-0.6 VCC-0.1 V 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 TA = 25°C, FORCEON = GND, FORCEOFF = VCC) Symbol Parameter VRITE Receiver Input Threshold to INVALID Output Voltage HIGH (Fig. 1) Receiver Input Threshold to INVALID Output Voltage LOW (Fig. 1) INVALID Output Voltage LOW INVALID Output Voltage HIGH Receiver or Transmitter Edge Transmitter Enabled (Fig. 1) Receiver Positive or Negative Threshold to INVALID HIGH (Fig. 1) Receiver Positive or Negative Threshold to INVALID LOW (Fig. 1) VRITD VIOL VIOH tWU tinvh tinvL Test Conditions Min. Positive Threshold Negative Threshold Typ. Max. Unit 2.7 V V 0.3 V 0.4 V 2.7 -0.3 IOUT = 1.6mA IOUT = -1mA VCC-0.6 V 100 µs 0.2 µs 30 µs 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 TA = 25°C) Symbol VTOUT ROUT ISC IL VOT Parameter Output Voltage Swing Output Resistance Test Conditions All Transmitter outputs are loaded with 3KΩ to GND VCC = 3.0V VCC = 2.3V VCC = V+ = V- = 0V 2V Output Short Circuit Current VCC = 3.3V Output Leakage Current Transmitter Output Voltage Min. VOUT = ± VCC = 0 to 5.5V, transmitter output =±12V, transmitter disabled T1IN = T2IN = GND, T3IN = VCC T3OUT loaded with 3KΩ to GND Typ. Max. Unit V ± 3.7 ± 4.4 ± 3.9 300 10M ± 40 ± 3.7 Ω ± 60 mA ± 25 mA V T1OUT and T2OUT loaded with 2.5mA each 5/13 STLV3243E Table 12: Receiver Inputs Electrical Characteristics (C 1 - C4 = 0.1µF, VCC = 2.3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) Symbol VRIN VRIL VRIH Parameter Test Conditions Receiver Input Voltage Operating Range RS-232 Input Threshold Low TA = 25°C VCC = 3.0V TA = 25°C VCC = 2.3V RS-232 Input Threshold High TA = 25°C VCC = 3.0V TA = 25°C VCC = 2.3V Min. 0.6 0.4 Input Resistance Max. Unit 25 V 1.0 0.8 1.4 1.2 VRIHYS Input Hysteresis RRIN Typ. -25 V 2.4 2.0 V 5 7 KΩ Typ. Max. 0.5 TA = 25°C 3 V Table 13: Timing Characteristics (C 1 - C4 = 0.1µF, VCC = 2.3 to 3V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) Symbol DR Parameter Test Conditions Maximum Data Rate RL = 3KΩ CL= 1000pF one transmitter switching Receiver Propagation Delay RIN to ROUT CL = 150pF Min. 250 Unit Kbps 0.15 µs tT_SKEW Transmitter Skew 60 ns tR_SKEW Receiver Skew 120 ns tPHL tPLH SRT 6/13 Transition Slew Rate TA = 25°C RL = 3K to 7KΩ VCC = 3V measured from +3V to -3V or -3V to +3V CL = 150pF to 1000pF 4 30 V/µs STLV3243E Figure 2: Application Circuits Table 14: Required Minimum Capacitance Value (µF) VCC (V) C1 C2, C3, C4, CBYPASS 2.3 to 3.0 0.1 0.1 7/13 STLV3243E Figure 3: Autopowerdown Input Levels Figure 4: Autopowerdown Input Timing 8/13 STLV3243E Figure 5: Data Rate VCC=2.3V, I O=100mA, C I = 1µF(tantalum), CO=10µF(tantalum) 9/13 STLV3243E Flip-Chip28 MECHANICAL DATA mm. mils DIM. MIN. A TYP 0.58 MAX. MIN. 0.95 22.8 TYP. 37.4 A1 0.24 9.4 A2 0.65 25.6 b 0.25 D 3.97 D1 E 0.30 0.35 9.8 4.17 156.3 2.5 2.47 E1 MAX. 11.8 13.8 164.2 98.4 2.67 97.2 2 105.1 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 7385199/A 10/13 STLV3243E Tape & Reel Flip-Chip28 MECHANICAL DATA mm. inch DIM. MIN. A TYP MAX. MIN. 330 MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 TYP. 0.504 18.4 0.519 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 11/13 STLV3243E Table 15: Revision History Date Revision 02-May-2005 2 12/13 Description of Changes The Packages SOP, SSOP and TSSOP have been obsoleted. STLV3243E 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 www.st.com 13/13