HEF4528BDF [NXP]

IC 4000/14000/40000 SERIES, DUAL MONOSTABLE MULTIVIBRATOR, CDIP16, SOT-74, CERDIP-16, Prescaler/Multivibrator;


型号：	HEF4528BDF
厂家：	NXP
描述：	IC 4000/14000/40000 SERIES, DUAL MONOSTABLE MULTIVIBRATOR, CDIP16, SOT-74, CERDIP-16, Prescaler/Multivibrator 时钟 CD 逻辑集成电路
文件：	总8页 (文件大小：102K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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

January 1995

Product speciﬁcation

File under Integrated Circuits, IC04

Philips Semiconductors

Product speciﬁcation

HEF4528B

MSI

Dual monostable multivibrator

output pulse is determined by the external timing

DESCRIPTION

components C_tand R_t.

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 (C_D), an output (O) and its complement

(O), and two pins for connecting the external timing

components (C_TC⁽¹⁾, RC_TC).

A HIGH to LOW transition on I₀when I₁is LOW or a LOW

to HIGH transition on I₁when I₀is HIGH produces a

positive pulse (LOW-HIGH-LOW) and O and a negative

pulse (HIGH-LOW-HIGH) on O if the C_Dis HIGH. A LOW

An external timing capacitor (C_t) must be connected

between C_TCand RC_TCand an external resistor (R_t) must

be connected between RC_TCand V_DD. 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

I_{0A, 0B}

input (HIGH to LOW triggered)

input (LOW to HIGH triggered)

clear direct input (active LOW)

output

I_1A, I_1B

C_DA, C_DB

O_A, O_B

complementary output (active LOW)

C_{TC A}, C_{TC B}external capacitor connections ⁽¹⁾

RC_{TC A}

RC_{TC B}

external capacitor/ resistor connections

FAMILY DATA, I_DDLIMITS category MSI

Fig.1 Functional diagram.

See Family Specifications

on C_Dforces O LOW, O HIGH and inhibits any further

pulses until C_Dis HIGH.

January 1995

Philips Semiconductors

Product speciﬁcation

HEF4528B

MSI

Dual monostable multivibrator

Fig.3 Logic diagram (one monostable multivibrator).

January 1995

Philips Semiconductors

Product speciﬁcation

HEF4528B

MSI

Dual monostable multivibrator

FUNCTION TABLE

INPUTS

OUTPUTS

I₀

I₁

C_D

Notes

1. H = HIGH state (the more positive voltage)

2. L = LOW state (the less positive voltage)

3. X = state is immaterial

= positive-going transition

= negative-going transition

= positive or negative output pulse; width is determined by C_tand R_t

AC CHARACTERISTICS

V_SS= 0 V; T_amb= 25 °C; C_L= 50 pF; input transition times ≤ 20 ns

V_DD

TYPICALEXTRAPOLATION

FORMULA

SYMBOL

MIN.

TYP. MAX.

Propagation delays

I₀, I₁→ O

140

280

100

113 ns + (0,55 ns/pF) C_L

39 ns + (0,23 ns/pF) C_L

27 ns + (0,16 ns/pF) C_L

128 ns + (0,55 ns/pF) C_L

49 ns + (0,23 ns/pF) C_L

32 ns + (0,16 ns/pF) C_L

78 ns + (0,55 ns/pF) C_L

29 ns + (0,23 ns/pF) C_L

22 ns + (0,16 ns/pF) C_L

93 ns + (0,55 ns/pF) C_L

39 ns + (0,23 ns/pF) C_L

27 ns + (0,16 ns/pF) C_L

HIGH to LOW

t_PHL

t_PLH

t_PHL

t_PLH

t_THL

t_TLH

I₀, I₁→ O

155

305

115

LOW to HIGH

C_D→ O

105

210

HIGH to LOW

C_D→ O

120

240

105

LOW to HIGH

Output transition

times

120

10 ns

(1,0 ns/pF) C_L

9 ns + (0,42 ns/pF) C_L

6 ns + (0,28 ns/pF) C_L

HIGH to LOW

120

10 ns

(1,0 ns/pF) C_L

LOW to HIGH

9 ns + (0,42 ns/pF) C_L

6 ns + (0,28 ns/pF) C_L

January 1995

Philips Semiconductors

Product speciﬁcation

HEF4528B

MSI

Dual monostable multivibrator

AC CHARACTERISTICS

V_SS= 0 V; T_amb= 25 °C; input transition times ≤ 20 ns; R_t= 5 kΩ; C_t= 15 pF

V_DD

TYPICAL FORMULA FOR P (µW)

Dynamic power

4000 f_i+ ∑ (f_oC_L) × V_DD

20 000 f_i+ ∑ (f_oC_L) × V_DD

59 000 f_i+ ∑ (f_oC_L) × V_DD

where

dissipation per

package (P)

f_i= input freq. (MHz)

f_o= output freq. (MHz)

C_L= load capacitance (pF)

∑ (f_oC_L) = sum of outputs

V_DD= supply voltage (V)

AC CHARACTERISTICS

V_SS= 0 V; T_amb= 25 °C; C_L= 50 pF; input transition times ≤ 20 ns; see also waveforms Fig.5.

V_DD

SYMBOL MIN. TYP. MAX.

Recovery time

for C_D

−75

−30

−25

µs

t_RCD

t_WI0L

t_WI1H

t_WCDL

t_su

Minimum I₀

pulse width; LOW

Minimum I₁

pulse width; HIGH

Minimum C_D

pulse width; LOW

Set-up time

−105

−40

−25

235

155

140

5,45

4,95

4,85

±3

to avoid change

in output

C_D→ I₀or I₁

Output O pulse

width; HIGH

−

t_WOH

∆t_WO

−

note 1

note 2

note 3

−

Output O pulse

width; HIGH

−

Change in output O

pulse width over

temperature

−

±2

−

±2

Change in output O

pulse width over

V_DD

−

±2

−

±1

V_DD± 5%

−

±1

January 1995

Philips Semiconductors

Product speciﬁcation

HEF4528B

MSI

Dual monostable multivibrator

V_DD

SYMBOL MIN. TYP. MAX.

External timing

resistor

−

2000

kΩ

R_t

C_t

−

External timing

capacitor

no limits

Notes

1. R_t= 5 kΩ; C_t= 15 pF; for other R_t, C_tcombinations and C_t< 0,01 µF see graph Fig.4.

2. R_t= 10 kΩ; C_t= 1000 pF; for other R_t, C_tcombinations and C_t> 0,01 µF use formula t_WO= K.R_t.C_t.

where: t_WO= output pulse width (s)

R_t= external timing resistor (Ω)

C_t= external timing capacitor (F)

K = 0,42 for V_DD= 5 V

K = 0,32 for V_DD= 10 V

K = 0,30 for V_DD= 15 V

3. T_amb= −40 to +85 °C; ∆t_WOis referenced to t_WOat T_amb= 25 °C.

January 1995

Philips Semiconductors

Product speciﬁcation

HEF4528B

MSI

Dual monostable multivibrator

Fig.4 Output pulse width (t_WO) as a function of external timing capacitor (C_t).

January 1995

Philips Semiconductors

Product speciﬁcation

HEF4528B

MSI

Dual monostable multivibrator

Fig.5 Waveforms showing minimum I₀, I₁and 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

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