INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC • The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC HEF4528B MSI Dual monostable multivibrator Product specification File under Integrated Circuits, IC04 January 1995 Philips Semiconductors Product specification HEF4528B MSI Dual monostable multivibrator output pulse is determined by the external timing components Ct and Rt. DESCRIPTION The HEF4528B is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has an active LOW input (I0), and active HIGH input (I1), an active LOW clear direct input (CD), an output (O) and its complement (O), and two pins for connecting the external timing components (CTC(1), RCTC). A HIGH to LOW transition on I0 when I1 is LOW or a LOW to HIGH transition on I1 when I0 is HIGH produces a positive pulse (LOW-HIGH-LOW) and O and a negative pulse (HIGH-LOW-HIGH) on O if the CD is HIGH. A LOW An external timing capacitor (Ct ) must be connected between CTC and RCTC and an external resistor (Rt) must be connected between RCTC and VDD. The duration of the (1) Always connected to ground. Fig.2 Pinning diagram. HEF4528BP(N): 16-lead DIL; plastic (SOT38-1) HEF4528BD(F): 16-lead DIL; ceramic (cerdip) (SOT74) HEF4528BT(D): 16-lead SO; plastic (SOT109-1) ( ): Package Designator North America PINNING I0A, I0B input (HIGH to LOW triggered) I1A, I1B input (LOW to HIGH triggered) CDA, CDB clear direct input (active LOW) OA, OB output OA, OB complementary output (active LOW) CTC A, CTC B external capacitor connections (1) RCTC A, RCTC B FAMILY DATA, IDD LIMITS category MSI Fig.1 Functional diagram. See Family Specifications on CD forces O LOW, O HIGH and inhibits any further pulses until CD is HIGH. January 1995 external capacitor/ resistor connections 2 Philips Semiconductors Product specification HEF4528B MSI Dual monostable multivibrator Fig.3 Logic diagram (one monostable multivibrator). January 1995 3 Philips Semiconductors Product specification HEF4528B MSI Dual monostable multivibrator FUNCTION TABLE INPUTS I0 OUTPUTS I1 CD L H H O O L H H X X L Notes 1. H = HIGH state (the more positive voltage) 2. L = LOW state (the less positive voltage) 3. X = state is immaterial 4. = positive-going transition 5. = negative-going transition = positive or negative output pulse; width is determined by Ct and Rt 6. AC CHARACTERISTICS VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns VDD V SYMBOL MIN. TYP. TYPICAL EXTRAPOLATION FORMULA MAX. Propagation delays I0, I1 → O HIGH to LOW 140 280 ns 113 ns + (0,55 ns/pF) CL 50 100 ns 39 ns + (0,23 ns/pF) CL 35 70 ns 27 ns + (0,16 ns/pF) CL 155 305 ns 128 ns + (0,55 ns/pF) CL 60 115 ns 49 ns + (0,23 ns/pF) CL 40 80 ns 32 ns + (0,16 ns/pF) CL 105 210 ns 78 ns + (0,55 ns/pF) CL 40 85 ns 29 ns + (0,23 ns/pF) CL 15 30 60 ns 22 ns + (0,16 ns/pF) CL 5 120 240 ns 93 ns + (0,55 ns/pF) CL 5 10 tPHL 15 I0, I1 → O LOW to HIGH 5 10 tPLH 15 CD → O HIGH to LOW CD → O LOW to HIGH Output transition times HIGH to LOW LOW to HIGH 5 10 tPHL 50 105 ns 39 ns + (0,23 ns/pF) CL 15 35 70 ns 27 ns + (0,16 ns/pF) CL 5 60 120 ns 10 ns + 10 tPLH 30 60 ns 9 ns + (0,42 ns/pF) CL 15 20 40 ns 6 ns + (0,28 ns/pF) CL 5 60 120 ns 30 60 ns 9 ns + (0,42 ns/pF) CL 20 40 ns 6 ns + (0,28 ns/pF) CL 10 10 tTHL tTLH 15 January 1995 (1,0 ns/pF) CL 4 10 ns + (1,0 ns/pF) CL Philips Semiconductors Product specification HEF4528B MSI Dual monostable multivibrator AC CHARACTERISTICS VSS = 0 V; Tamb = 25 °C; input transition times ≤ 20 ns; Rt = 5 kΩ; Ct = 15 pF VDD V Dynamic power TYPICAL FORMULA FOR P (µW) 4000 fi + ∑ (foCL) × VDD2 5 dissipation per 10 20 000 fi + ∑ (foCL) × VDD package (P) 15 59 000 fi + ∑ (foCL) × VDD2 2 where fi = input freq. (MHz) fo = output freq. (MHz) CL = load capacitance (pF) ∑ (foCL) = sum of outputs VDD = supply voltage (V) AC CHARACTERISTICS VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns; see also waveforms Fig.5. VDD V Recovery time for CD Minimum I0 pulse width; LOW Minimum I1 pulse width; HIGH Minimum CD pulse width; LOW SYMBOL MIN. TYP. 0 −75 ns 0 −30 ns 15 0 −25 ns 5 50 25 ns 30 15 ns 15 20 10 ns 5 50 25 ns 30 15 ns 15 20 10 ns 5 60 30 ns 35 15 ns 25 10 ns 5 10 10 10 10 tRCD tWI0L tWI1H tWCDL 15 Set-up time CD → I0 or I1 5 10 tsu 15 Output O pulse width; HIGH 5 10 tWOH 15 Output O pulse width; HIGH 5 10 tWOH 15 Change in output O 5 pulse width over 10 temperature 15 Change in output O 5 pulse width over 10 VDD 15 January 1995 ∆tWO ∆tWO MAX. 0 −105 ns 0 −40 ns 0 −25 ns − 235 ns − 155 ns − 140 ns − 5,45 µs − 4,95 µs − 4,85 µs − ±3 % − ±2 % − ±2 % − ±2 % − ±1 % − ±1 % 5 to avoid change in output note 1 note 2 note 3 VDD ± 5% Philips Semiconductors Product specification HEF4528B MSI Dual monostable multivibrator VDD V External timing resistor SYMBOL 5 10 Rt 15 External timing 5 capacitor 10 MIN. TYP. MAX. 5 − 2000 kΩ 5 − 2000 kΩ 5 − 2000 kΩ no limits Ct no limits 15 no limits Notes 1. Rt = 5 kΩ; Ct = 15 pF; for other Rt, Ct combinations and Ct < 0,01 µF see graph Fig.4. 2. Rt = 10 kΩ; Ct = 1000 pF; for other Rt, Ct combinations and Ct > 0,01 µF use formula tWO = K.Rt.Ct. where: tWO = output pulse width (s) Rt = external timing resistor (Ω) Ct = external timing capacitor (F) K = 0,42 for VDD = 5 V K = 0,32 for VDD = 10 V K = 0,30 for VDD = 15 V 3. Tamb = −40 to +85 °C; ∆tWO is referenced to tWO at Tamb = 25 °C. January 1995 6 Philips Semiconductors Product specification HEF4528B MSI Dual monostable multivibrator Fig.4 Output pulse width (tWO) as a function of external timing capacitor (Ct). January 1995 7 Philips Semiconductors Product specification HEF4528B MSI Dual monostable multivibrator Fig.5 Waveforms showing minimum I0, I1 and O pulse widths, set-up and recovery times. Set-up and recovery times are shown as positive values but may be specified as negative values. APPLICATION INFORMATION An example of an application for the HEF4528B is: • Non-retriggerable monostable multivibrator Fig.6 Two examples for a non-retriggerable monostable multivibrator using half of HEF4528B (LOW to HIGH and HIGH to LOW triggered). January 1995 8