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| (R) 74VHC139 DUAL 2 TO 4 DECODER/DEMULTIPLEXER s s s s s s s s s HIGH SPEED: tPD =5.0 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 4 A (MAX.) at TA = 25 oC HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) POWER DOWN PROTECTION ON INPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 139 IMPROVED LATCH-UP IMMUNITY M1 (Micro Package) T (TSSOP Package) ORDER CODES : 74VHC139M 74VHC139T gating or as a data input for demultiplexing applications. While the enable input is held high, all four outputs are high independently of the other inputs. Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. DESCRIPTION The 74VHC139 is an advanced high-speed CMOS DUAL 2 TO 4 LINE DECODER/ DEMULTIPLEXER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. The active low enable input can be used for PIN CONNECTION AND IEC LOGIC SYMBOLS June 1999 1/8 74VHC139 INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1, 15 2, 3 4, 5, 6, 7 12, 11, 10, 9 14, 13 8 16 SYMBOL 1G, 2G 1A, 1B NAME AND FUNCT ION Enable Inputs Address Inputs 1Y0 to 1Y3 Outputs 2Y0 to 2Y3 Outputs 2A, 2B GND VCC Address Inputs Ground (0V) Positive Supply Voltage TRUTH TABLE ENABLE G H L L L L X:Don't Care INPUT S SELECT B X L L H H OUTPUTS A X L H L H Y0 H L H H H Y1 H H L H H Y2 H H H L H Y3 H H H H L LOGIC DIAGRAM Thislogic diagram has notbe used to estimate propagation delays 2/8 74VHC139 ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7.0 -0.5 to +7.0 -0.5 to VCC + 0.5 - 20 20 25 75 -65 to +150 300 Unit V V V mA mA mA mA o o ICC or IGND DC VCC or Ground Current C C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. RECOMMENDED OPERATING CONDITIONS Symbol VCC VI VO Top dt/dv Supply Voltage Input Voltage Output Voltage Operating Temperature Input Rise and Fall Time (see note 1) (VCC = 3.3 0.3V) (V CC = 5.0 0.5V) Parameter Valu e 2.0 to 5.5 0 to 5.5 0 to VCC -40 to +85 0 to 100 0 to 20 Unit V V V o C ns/V ns/V 1) VIN from 30% to70%of VCC DC SPECIFICATIONS Symb ol Parameter T est Cond ition s V CC (V) VIH VIL VOH High Level Input Voltage Low Level Input Voltage High Level Output Voltage 2.0 3.0 to 5.5 2.0 3.0 to 5.5 2.0 3.0 4.5 3.0 4.5 VOL Low Level Output Voltage 2.0 3.0 4.5 3.0 4.5 II ICC Input Leakage Current Quiescent Supply Current 0 to 5.5 5.5 IO=-50 A IO=-50 A IO=-50 A IO=-4 mA IO=-8 mA IO=50 A IO=50 A IO=50 A IO=4 mA IO=8 mA VI = 5.5V or GND VI = VCC or GND 1.9 2.9 4.4 2.58 3.94 0.0 0.0 0.0 0.1 0.1 0.1 0.36 0.36 0.1 4 2.0 3.0 4.5 o Value T A = 25 C Min. 1.5 0.7VCC 0.5 0.3VCC 1.9 2.9 4.4 2.48 3.8 0.1 0.1 0.1 0.44 0.44 1.0 40 Typ . Max. -40 to 85 C Min . 1.5 0.7VCC 0.5 0.3VCC Max. o Un it V V V V A A 3/8 74VHC139 AC ELECTRICAL CHARACTERISTICS (Input t r = tf =3 ns) Symb ol Parameter V CC (V) tPLH tPHL Propagation Delay Time A, B, to Y Test Co ndition CL (pF ) 15 50 15 50 15 50 15 50 Value T A = 25 o C Min. Typ . Max. 7.2 11.0 9.7 5.0 6.5 6.4 8.9 4.4 5.9 14.5 7.2 9.2 9.2 12.7 6.3 8.3 Un it -40 to 85 o C Min . Max. 1.0 13.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 16.5 8.5 10.5 11.0 14.5 7.5 9.5 ns 3.3(*) 3.3(*) 5.0(**) 5.0(**) 3.3(*) 3.3(*) 5.0 5.0(**) (**) tPLH tPHL Propagation Delay Time G to Y ns (*) Voltage range is 3.3V 0.3V (**) Voltage range is 5V 0.5V CAPACITIVE CHARACTERISTICS Symb ol Parameter T est Cond ition s o Value T A = 25 C Min. Typ . 4 26 Max. 10 -40 to 85 C Min . Max. 10 o Un it C IN CPD Input Capacitance Power Dissipation Capacitance (note 1) pF pF 1) CPD isdefined as the value of the IC'sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto Test Circuit).Average operating current can be obtained by the following equation. ICC(opr) = CPD * VCC * fIN + ICC/2 (per Decoder) TEST CIRCUIT CL = 15/50 pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50) 4/8 74VHC139 WAVEFORM 1: PROPAGATION DELAYS FOR INVERTING OUTPUTS (f=1MHz; 50% duty cycle) WAVEFORM 2: PROPAGATION DELAYS FOR NON-INVERTING OUTPUTS (f=1MHz; 50% duty cycle) 5/8 74VHC139 SO-16 MECHANICAL DATA DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F G L M S 3.8 4.6 0.5 9.8 5.8 1.27 8.89 4.0 5.3 1.27 0.62 8 (max.) 0.149 0.181 0.019 10 6.2 0.35 0.19 0.5 45 (typ.) 0.385 0.228 0.050 0.350 0.157 0.208 0.050 0.024 0.393 0.244 0.1 mm TYP. MAX. 1.75 0.2 1.65 0.46 0.25 0.013 0.007 0.019 0.004 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010 P013H 6/8 74VHC139 TSSOP16 MECHANICAL DATA mm MIN. A A1 A2 b c D E E1 e K L 0o 0.50 0.05 0.85 0.19 0.09 4.9 6.25 4.3 5 6.4 4.4 0.65 BSC 4o 0.60 8o 0.70 0o 0.020 0.10 0.9 TYP. MAX. 1.1 0.15 0.95 0.30 0.20 5.1 6.5 4.48 0.002 0.335 0.0075 0.0035 0.193 0.246 0.169 0.197 0.252 0.173 0.0256 BSC 4o 0.024 8o 0.028 0.004 0.354 MIN. inch TYP. MAX. 0.433 0.006 0.374 0.0118 0.0079 0.201 0.256 0.176 DIM. A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 7/8 74VHC139 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 trademark of STMicroelectronics (c) 1999 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. http://www.st.com . 8/8 |
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