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HEF4528BP-HEF4528BT
Dual monostable multivibrator
1. General descriptionThe HEF4528B is a dual retriggerable-resetable monostable multivibrator. Each
multivibrator has an active LOW input (nA), and active HIGH input (nB), an active LOW
clear direct input (nCD), an output (nQ) and its complement (nQ), and two external timing
component connecting pins (nCEXT, always connected to ground, and nREXT/CEXT).
An external timing capacitor (CEXT) must be connected between nCEXT and
nREXT/CEXT and an external resistor (REXT) must be connected between nREXT/CEXT
and VDD. The output pulse duration is determined by the external timing components
CEXT and REXT. A HIGH-to-LOW transition on nA when nB is LOW or a LOW-to-HIGH
transition on nB when nA is HIGH produces a positive pulse (LOW-HIGH-LOW) on nQ
and a negative pulse (HIGH-LOW-HIGH) on nQ if the nCD is HIGH. A LOW on nCD
forces nQ LOW, nQ HIGH and inhibits any further pulses until nCD is HIGH.
It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS
(usually ground). Unused inputs must be connected to VDD, VSS, or another input.
2. Features and benefits Fully static operation 5 V, 10 V, and 15 V parametric ratings Standardized symmetrical output characteristics Specified from 40 C to +85 C Complies with JEDEC standard JESD 13-B
3. Ordering information
HEF4528B
Dual monostable multivibrator
Rev. 7 — 22 November 2011 Product data sheet
Table 1. Ordering informationAll types operate from 40 C to +85 C.
HEF4528BP DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-4
HEF4528BT SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1
NXP Semiconductors HEF4528B
Dual monostable multivibrator
4. Functional diagramNXP Semiconductors HEF4528B
Dual monostable multivibrator
5. Pinning information
5.1 Pinning
5.2 Pin description
Table 2. Pin description1CEXT, 2CEXT 1, 15 external capacitor connection (always connected to ground)
1REXT/CEXT, 2REXT/CEXT 2, 14 external capacitor/resistor connection
1CD, 2CD 3, 13 clear direct input (active LOW)
1B, 2B 4, 12 input (LOW-to-HIGH triggered)
1A, 2A 5, 11 input (HIGH-to-LOW triggered)
1Q, 2Q 6, 10 output
1Q, 2Q 7, 9 complementary output (active LOW)
VSS 8 ground supply voltage
VDD 16 supply voltage
NXP Semiconductors HEF4528B
Dual monostable multivibrator
6. Functional description[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care;
= positive-going transition; = negative-going transition; and REXT; and REXT.
7. Limiting values[1] For DIP16 package: Ptot derates linearly with 12 mW/K above 70 C.
[2] For SO16 package: Ptot derates linearly with 8 mW/K above 70 C.
Table 3. Function table[1] LH H
XXL L H
Table 4. Limiting valuesIn accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to VSS = 0 V (ground).
VDD supply voltage 0.5 +18 V
IIK input clamping current VI < 0.5 V or VI > VDD + 0.5V - 10 mA input voltage 0.5 VDD + 0.5 V
IOK output clamping current VI < 0.5 V or VI > VDD + 0.5V - 10 mA
II/O input/output current - 10 mA
IDD supply current - 50 mA
Tstg storage temperature 65 +150 C
Tamb ambient temperature 40 +85 C
Ptot total power dissipation Tamb = 40 C to +85 C
DIP16 package [1]- 750 mW
SO16 package [2]- 500 mW power dissipation per output - 100 mW
NXP Semiconductors HEF4528B
Dual monostable multivibrator
8. Recommended operating conditions
9. Static characteristics
Table 5. Recommended operating conditionsVDD supply voltage 3 - 15 V input voltage 0 - VDD V
Tamb ambient temperature in free air 40 - +85 C
t/V input transition rise and fall rate VDD = 5 V - - 3.75 s/V
VDD = 10 V - - 0.5 s/V
VDD = 15 V - - 0.08 s/V
Table 6. Static characteristicsVSS = 0 V; VI =VSS or VDD; unless otherwise specified.
VIH HIGH-level
input voltage IO < 1 A 5 V 3.5 - 3.5 - 3.5 - V
10 V 7.0 - 7.0 - 7.0 - V
15 V 11.0 - 11.0 - 11.0 - V
VIL LOW-level
input voltage IO < 1 A 5 V - 1.5 - 1.5 - 1.5 V
10 V - 3.0 - 3.0 - 3.0 V
15 V - 4.0 - 4.0 - 4.0 V
VOH HIGH-level output voltage IO < 1 A 5 V 4.95 - 4.95 - 4.95 - V
10 V 9.95 - 9.95 - 9.95 - V
15 V 14.95 - 14.95 - 14.95 - V
VOL LOW-level output voltage IO < 1 A 5 V - 0.05 - 0.05 - 0.05 V
10 V - 0.05 - 0.05 - 0.05 V
15 V - 0.05 - 0.05 - 0.05 V
IOH HIGH-level output current VO = 2.5V 5 V - 1.7 - 1.4 - 1.1 mA
VO = 4.6V 5 V - 0.52 - 0.44 - 0.36 mA
VO = 9.5V 10 V - 1.3 - 1.1 - 0.9 mA
VO = 13.5V 15 V - 3.6 - 3.0 - 2.4 mA
IOL LOW-level output current VO = 0.4V 5 V 0.52 - 0.44 - 0.36 - mA
VO = 0.5V 10 V 1.3 - 1.1 - 0.9 - mA
VO = 1.5V 15 V 3.6 - 3.0 - 2.4 - mA input leakage current 15V - 0.3 - 0.3 - 1.0 A
IDD supply current all valid input
combinations; =0A
5 V - 20 - 20 - 150 A
10 V - 40 - 40 - 300 A
15 V - 80 - 80 - 600 A input capacitance - - - - 7.5 - - pF
NXP Semiconductors HEF4528B
Dual monostable multivibrator
10. Dynamic characteristicsTable 7. Dynamic characteristicsVSS = 0 V; Tamb = 25 C; for waveforms see Figure 6; for test circuit see Figure 7; unless otherwise specified.
tPHL HIGH to LOW
propagation delay
nA or nB to nQ;
see Figure5
5 V 113 ns + (0.55 ns/pF)CL - 140 280 ns
10 V 39 ns + (0.23 ns/pF)CL -50 100 ns
15 V 27 ns + (0.16 ns/pF)CL -35 70 ns
nCD to nQ;
see Figure5
5 V 78 ns + (0.55 ns/pF)CL - 105 210 ns
10 V 29 ns + (0.23 ns/pF)CL -40 85 ns
15 V 22 ns + (0.16 ns/pF)CL -30 60 ns
tPLH LOW to HIGH
propagation delay
nA or nBto nQ;
see Figure5
5 V 128 ns + (0.55 ns/pF)CL - 155 305 ns
10 V 49 ns + (0.23 ns/pF)CL -60 115 ns
15 V 32 ns + (0.16 ns/pF)CL -40 80 ns
nCD to nQ;
see Figure5
5 V 93 ns + (0.55 ns/pF)CL - 120 240 ns
10 V 39 ns + (0.23 ns/pF)CL -50 105 ns
15 V 27 ns + (0.16 ns/pF)CL -35 70 ns transition time nQ, nQ;
see Figure5
5 V [2] 10 ns + (1.00 ns/pF)CL -60 120 ns
10 V 9 ns + (0.42 ns/pF)CL -30 60 ns
15 V 6 ns + (0.28 ns/pF)CL -20 40 ns
trec recovery time nCD to nA or nB;
see Figure6
5 V 0 75 - ns
10 V 0 30 - ns
15 V 0 25 - ns
tsu set-up time nCDtonAor nB;
see Figure6
5 V 0 105 - ns
10 V 0 40 - ns
15 V 0 25 - ns pulse width nA LOW;
minimum width;
see Figure6
5 V 5025- ns
10 V 30 15 - ns
15 V 20 10 - ns
nB HIGH;
minimum width;
see Figure6
5 V 5025- ns
10 V 30 15 - ns
15 V 20 10 - ns
nCD LOW;
minimum width;
see Figure6
5 V 6030- ns
10 V 35 15 - ns
15 V 25 10 - ns
nQ or nQ;
REXT =5k;
CEXT =15pF;
see Figure6
5 V [3] - 235 - ns
10 V - 155 - ns
15 V - 140 - ns
nQ or nQ;
REXT =10k;
CEXT =1nF;
see Figure6
5 V [4] -5.45 - s
10 V - 4.95 - s
15 V - 4.85 - s
NXP Semiconductors HEF4528B
Dual monostable multivibrator[1] The typical values of the propagation delay and transition times are calculated from the extrapolation formulas shown (CL in pF).
[2] tt is the same as tTHL and tTLH.
[3] For other REXT,CEXT combinations and CEXT 0.01 F see Figure4.
[4] For other REXT,CEXT combinations and CEXT 0.01 F use formula tW =K REXT CEXT.
where: tW= output pulse width (s);
REXT= external timing resistor ();
CEXT= external timing capacitor (F); = 0.42 for VDD =5V; = 0.32 for VDD =10V; = 0.30 for VDD =15V.
[5] Tamb= 40 C to 85 C; tW is referenced to tW at Tamb =25C.
tW pulse width
variation
nQ output variation
over temperature
range
5 V [5] - 3- %
10 V - 2- %
15 V - 2- %
nQ output variation
over voltage range
VDD 5%
5 V - 2- %
10 V - 1- %
15 V - 1- %
REXT external timing
resistor
see Figure4 5 V 5 - 2 M
10 V 5 - 2 M
15 V 5 - 2 M
CEXT external timing
capacitor
see Figure4 5 V no limits
10 V no limits
15 V no limits
Table 7. Dynamic characteristics …continuedVSS = 0 V; Tamb = 25 C; for waveforms see Figure 6; for test circuit see Figure 7; unless otherwise specified.
Table 8. Dynamic power dissipation PDPD can be calculated from the formulas shown. VSS = 0 V; tr = tf 20 ns; Tamb = 25 C. dynamic power
dissipation
5 V PD = 4000 fi + (fo CL) VDD2 fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VDD = supply voltage in V;
(fo CL) = sum of the outputs.
10 V PD = 20000 fi + (fo CL) VDD2
15 V PD = 59000 fi + (fo CL) VDD2
NXP Semiconductors HEF4528B
Dual monostable multivibrator
