M3493B2 CMOS 12 X 8 CROSSPOINT WITH CONTROL MEMORY . .. .. .. LOW ON RESISTANCE (typ. 60 Ω at VDD = 10 V) INTERNAL CONTROL LATCHES ANALOGSIGNALSWING CAPABILITYEQUAL TO POWER SUPPLY VOLTAGE APPLIED LESS THAN 1 % TOTAL DISTORT. AT 0 dBm LESS THAN – 95 dB CROSS-TALK AT 1 KHz 1 VPP VERY LOW POWER CONSUMPTION PIN-TO-PIN COMPATIBLE WITH M093 DIP40 ORDERING NUMBER : M3493B2 (*) (*) It substitutes the obsolete M3493B1. DESCRIPTION The M3493 contains a 12 x 8 array of crosspoint together with a 7 to 96 line decoder and latch circuits. Anyoneof the 96 switches can be addressed by selecting the appropriate 7 input bits. The selected switch can be turned on or off by applying a logical oneor zero to the data in and the strobeinputat logi- cal one. A reset signal can be used to turn off all the switches together when is switched at logical one. M3493 is available in 40 lead dual in-line plastic package. BLOCK DIAGRAM June 1998 1/12 M3493B2 PIN CONNECTION (top view) INPUT/OUTPUT DESCRIPTION I/O Symbol Pin Description I VDD 40 Positive Power Supply I VSS 20 Negative Power Supply I AX0-AX3 4, 5, 22, 23 X Address Lines. These 4 pins are used to select one of the 12 rows of switches. Refer to the truth table for legal address. I AY0-AY2 2, 24, 25 Y Address Lines. These 3 pins are used to select one of the 8 columns of switches. Refer to the truth table for legal address. POWER ADDRESS CONTROL I DATA 38 This input determines if the selected switch will be turned on (closed) or off (opened). If the pin is held high, the selected switch will be closed. If the pin is held low, the switch will be opened. I STROBE 18 This pin enables whatever action is selected by the ADDRESS and DATA pins. When the STROBE pin is held low, no switch openings or closings take place. When the STROBE pin is held high, the switch addressed by the select lines will be opened or closed (depending upon the state of the DATA pin) I RESET 3 Master Reset. This pin turns off (opens) all 96 switches. The states of the above control lines are irreleant. This pin is active high. I/O X0-X11 8-13, 28-33 Analog Input/Outputs. These pins are connected to the Y0-Y7 pins in according to the truth table. I/O Y0-Y7 1,15,17,19,21 35,37,39 Analog Input/Outputs. These pins are connected to the X0-X15 pins in according to the truth table. DATA 2/12 M3493B2 TRUTH TABLE AX0 0 1 0 1 0 1 0* 1* 0 1 0 1 0 1 0* 1* 0 ↓ 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 AX1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 ↓ 0 0 ↓ 0 0 ↓ 0 0 ↓ 0 0 ↓ 0 0 ↓ 0 AX2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 Address AX3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 0 ↓ 1 Connections AY0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 ↓ 1 0 ↓ 0 1 ↓ 1 0 ↓ 0 1 ↓ 1 0 ↓ 0 AY1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ↓ 0 1 ↓ 1 1 ↓ 1 0 ↓ 0 0 ↓ 0 1 ↓ 1 AY2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ↓ 0 0 ↓ 0 0 ↓ 0 1 ↓ 1 1 ↓ 1 1 ↓ 1 X0 - Y0 X1 - Y0 X2 - Y0 X3 - Y0 X4 - Y0 X5 - Y0 No connection No connection X6 - Y0 X7 - Y0 X8 - Y0 X9 - Y0 X10 - Y0 X11 - Y0 No connection No connection X0 - Y1 ↓ <0> ↓ X11 - Y1 X0 - Y2 ↓ ↓ X11 - Y2 X0 - Y3 ↓ ↓ X11 - Y3 X0 - Y4 ↓ ↓ X11 - Y4 X0 - Y5 ↓ ↓ X11 - Y5 X0 - Y6 ↓ ↓ X11 - Y6 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V DD DC supply Voltage V IN Input Voltage Range Ptot Power Dissipation Value V - 0.5, VDD + 0.5 V 1 Toper Operating Temperature Range Tstg Storage Temperature Range Unit - 0.5, 14 W 0, + 70 o - 50, + 125 o C C Stresses above those l is ted under ”A bsolute Maximum Ratings” may cause per manent damage to t he devi ce. This is a st ress r ating onl y and functional operation of the device at these or any ot her condit ions in exces s of those indicat ed in t he operational sections of thi s specification i s not implied. Exposure to absolute maximum rating condi ti ons f or extended peri ods may af fect device rel iabili ty. RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Supply Voltage Toper Operating Temperature 0, + 70 o (Logic Signal) 0, VDD V V IN 10 Unit V DD V C 3/12 M3493B2 STATIC ELECTRICAL CHARACTERISTICS (Tamb = 0 to 70oC, VDD = 10V, unless otherwise specified Symbol IS Parameter Supply Current Test Conditions Reset = VDD Min. Typ. Max. 1 Unit mA 60 100 10 20 Ω Ω ±3 µA 0.8 V V ±3 µA CROSSPOINT On Resistance VIDC = 4.75V, VODC = 4.5V, See Figure 1 On Resistance Variation Off-leakage * All switches off VOS = VIS = 0 to V DD CONTROLS VIL VIH 2.4 Input Leakage * VIN = 0 to VDD * The device is guaranteed with such limits up to 70°C. At 25°C these limits become ± 100nA. DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb = 25oC, CL = 50pF all input square wave rise and fall times = 10ns, VDD = 10V) Symbol Parameter Test Conditions Min. Typ. Max. Unit Fig. CROSSPOINT tPHL, tPLH C C Propagation Delay Time (switch on) Signal Input to Output Frequency Response (any switch on) 20 log (VOS/VIS) = -3dB Sine Wave Distortion R H = 1kΩ, VIS = 2VPP 30 R H = 81Ω, VIS = 2VPP, C L = 3pF 50 Feed Through (any switches off) fq = 10kHz, RH = 1kΩ, VIS = 2VPP Frequency for Signal Crosstalk Attenuation of 40dB Attenuation of 110dB Capacitance Xn to Ground Vn to Ground Feed Through Capacitance Logic Input to Ground R H = 1kΩ, VIS = 2VPP 100 2 MHz 1 fq = 1kHz, RH = 0.6kΩ, VIS = 8VPP ns % -80 dB 1 5 MHz kHz pF 3 4 15 15 0.4 5 fq = 1MHz, VIS = 0.1VPP fq = 1MHz, VIS = 0.1VPP pF CONTROLS (tr, tf = 10ns) tPSN tPZH tPAN tPSF tPZL tPAF tS tH tO tW tWR tPHZ tAS tAH 4/12 Propagation Delay Time Strobe to Output (switch turn-on to high level) Data-in to Output (turn-on to high level) Address to Output (turn-on to high level) Propagation Delay Time Strobe to Output (switch turn-off) Data-in to Output (turn-on to low level) Address to Output (turn-off) R L = 1kΩ, CL = 50pF Set-up Time Data-in to Strobe Hold Time Data-in to Strobe Switching Frequency Strobe Pulse Width Reset Pulse Width Reset Turn-off to Output Delay Address Set-up Time Address to Strobe Address Hold Time Address to Strobe Control Crosstalk Data-in, Address or Square wave input, VIN = 3V, Strobe to Output R L = 10kΩ 150 200 ns 5 150 150 150 200 200 200 ns ns ns 6 7 5 150 150 200 200 40 ns ns ns 120 ns 6 7 5 10 5 10 1 100 150 150 120 120 75 200 MHz ns ns ns ns ns mV 10 9 9 10 10 8 M3493B2 TEST CIRCUITS Figure 1 : RON Measurement. Figure 2 : Propagation Delay Time and Waveforms (signal input to signal output switch ON). Figure 3 : Off Isolation Measurement (Feed through). 5/12 M3493B2 Figure 4 : Crosstalk Measurements. Figure 5 : PropagationDelay Time and Waveforms (strobe to signal output switch Turn-ON or Turn-OFF). Figure 6 : PropagationDelay Time and Waveforms (data-in signal output, switch Turn-ON to high or low level). 6/12 M3493B2 Figure 7 : PropagationDelay Time and Waveforms (address to signal output switch Turn-ON or Turn-OFF). Figure 8 : Waveforms for Crosstalk (control input to signal output). 7/12 M3493B2 Figure 9 : PropagationDelay Time and Waveforms (reset to output delay). Figure 10 : PropagationDelay Time and Waveforms (Strobe and C/S to signal output switch). 8/12 M3493B2 Figure 11 : Typical RON versus Vis. Figure 12 : Peak to Peak Voltage Capability versus Total Harmonic Distortion. Figure 13 : VRMS Capability versus VDD. 9/12 M3493B2 TYPICAL APPLICATIONS The figures 14, 15 and 16 show the system configuration for expanded matrices (16 x 16, 8 x 64, 32 x 32). Figure 14 : (16 x 16 non blocking matrix). Figure 15 : (8 x 64 matrix). Figure 16 : (32 x 32 non blocking matrix). 10/12 M3493B2 DIP40 PACKAGE MECHANICAL DATA mm DIM. MIN TYP inch MAX MIN TYP a1 0.63 0.025 b 0.45 0.018 b1 0.23 b2 0.31 1.27 D E 0.009 0.012 0.050 52.58 15.2 16.68 2.070 0.598 0.657 e 2.54 0.100 e3 48.26 1.900 F MAX 14.1 0.555 I 4.445 0.175 L 3.3 0.130 11/12 M3493B2 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. Specification 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 1998 STMicroelectronics – Printed in Italy – All Rights Reserved ‘STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 12/12