Intersil Corporation CD14538BMS Datasheet

November 1994

CX1 RX1

CD14538BMS

CMOS Dual Precision

Monostable Multivibrator

Features

• High-Voltage Type (20V Rating)

• Retriggerable/Resettable Capability

• Trigger and Reset Propagation Delays Independent of RX, CX

• Triggering From Leading or Trailing Edge

• Q and

Q Buffered Outputs Available

• Separate Resets

• Wide Range of Output-Pulse Widths

• Schmitt-Trigger Input Allows Unlimited Rise and Fall Times On +TR and -TR Inputs

• 100% Tested For Maximum Quiescent Current at 20V

• Maximum Input Current of 1µA at 18V Over Full Package-Temperature Range:

- 100nA at 18V and +25

• Noise Margin (Full Package-Temperature Range):

- 1V at VDD = 5V

- 2V at VDD = 10V

- 2.5V at VDD = 15V

• 5V, 10V and 15V Parametric Ratings

• Standardized Symmetrical Output Characteristics

• Meets All Requirements of JEDEC Tentative Standards No. 13B, “Standard Speciﬁcations for Description of “B” Series CMOS Device’s

Applications

• Pulse Delay and Timing

• Pulse Shaping

Description

CD14538BMS dual precision monostable multivibrator provides stable retriggerable/resettable one-shot operation for any ﬁxed-voltage timing application.

An external resistor (R accuracy for the circuit. Adjustment of R put pulse widths from the Q and output transition (trigger propagation delay) and the time delay from reset input to output transition (reset propagation delay) are independent of R cision control of output pulse widths is achieved through linear CMOS techniques.

Leading-edge-triggering (+TR) and trailing-edge-triggering (-TR) inputs are provided for triggering from either edge of an input pulse. An unused +TR input should be tied to VSS. An unused -TR input should be tied to VDD. A RESET (on low level) is provided for immediate termination of the output pulse or to prevent output pulses when power is turned on. An unused RESET input should be tied to VDD. However, if an entire section of the CD14538BMS is not used, its inputs must be tied to either VDD or VSS. See T able 1.

In normal operation the circuit retriggers (extends the output pulse one period) on the application of each new trigger pulse. For operation in the non-retriggerable mode,

Q is connected to -TR when leading-edge triggering (+TR) is used or Q is connected to +TR when trailing-edge triggering (-TR) is used. The time period (T) for this multivibrator can be calculated by: T = R

The minimum value of external resistance, R mum values of external capacitance, C

The CD14538BMS is interchangeable with type MC14538 and is similar to and pin-compatible with the CD4098B* and CD4538B**.

* T = 0.5 RXCX for CX≥ 1000pF. * T = RXCX; CX min = 5000pF.

The CD14538BMS is supplied in these 16-lead outline packages: Braze Seal DIP H4X

Frit Seal DIP H1L Ceramic Flatpack H6W

) and an external capacitor (CX) control the timing and

and CX provides a wide range of out-

Q terminals. The time delay from trigger input to

and CX. Pre-

XCX

is 4KΩ. The minimum and maxi-

, are 0pF and 100µF, respectively.

Pinout

CD14538BMS

TOP VIEW

-TR (1) Q1 Q1

2 3 4 5 6 7 8

RXCX (1)

RESET (1)

+TR (1)

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207

16 15

RXCX (2)

RESET (2)

+TR (2)

-TR (2)

11 10

Functional Diagram

7-640

+TR

-TR

RESET

+TR

-TR

RESET

VDD = 16 VSS = 8

4 5 3

12 11 13

15 14 RXCX(2)

21 RXCX(1)

MONO

CX2 RX2

VDD

File Number 3192

Speciﬁcations CD14538BMS

Absolute Maximum Ratings Reliability Information

DC Supply Voltage Range, (VDD) . . . . . . . . . . . . . . . -0.5V to +20V

(Voltage Referenced to VSS Terminals)

Input Voltage Range, All Inputs . . . . . . . . . . . . .-0.5V to VDD +0.5V

DC Input Current, Any One Input . . . . . . . . . . . . . . . . . . . . . . . .±10mA

Operating Temperature Range. . . . . . . . . . . . . . . . -55oC to +125oC

Package Types D, F, K, H

Storage Temperature Range (TSTG). . . . . . . . . . . -65oC to +150oC

Lead Temperature (During Soldering) . . . . . . . . . . . . . . . . . +265oC

At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for

10s Maximum

TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS

PARAMETER SYMBOL CONDITIONS (NOTE 1)

Supply Current IDD VDD = 20V, VIN = VDD or GND 1 +25oC-10µA

VDD = 18V, VIN = VDD or GND 3 -55oC-10µA

Input Leakage Current IIL VIN = VDD or GND VDD = 20 1 +25oC -100 - nA

VDD = 18V 3 -55oC -100 - nA

Input Leakage Current IIH VIN = VDD or GND VDD = 20 1 +25oC - 100 nA

VDD = 18V 3 -55oC - 100 nA Output Voltage VOL15 VDD = 15V, No Load 1, 2, 3 +25oC, +125oC, -55oC - 50 mV Output Voltage VOH15 VDD = 15V, No Load (Note 3) 1, 2, 3 +25oC, +125oC, -55oC 14.95 - V Output Current (Sink) IOL5 VDD = 5V, VOUT = 0.4V 1 +25oC 0.53 - mA Output Current (Sink) IOL10 VDD = 10V, VOUT = 0.5V 1 +25oC 1.4 - mA Output Current (Sink) IOL15 VDD = 15V, VOUT = 1.5V 1 +25oC 3.5 - mA Output Current (Source) IOH5A VDD = 5V, VOUT = 4.6V 1 +25oC - -0.53 mA Output Current (Source) IOH5B VDD = 5V, VOUT = 2.5V 1 +25oC - -1.8 mA Output Current (Source) IOH10 VDD = 10V, VOUT = 9.5V 1 +25oC - -1.4 mA Output Current (Source) IOH15 VDD = 15V, VOUT = 13.5V 1 +25oC - -3.5 mA N Threshold Voltage VNTH VDD = 10V, ISS = -10µA 1 +25oC -2.8 -0.7 V P Threshold Voltage VPTH VSS = 0V, IDD = 10µA 1 +25oC 0.7 2.8 V Functional F VDD = 2.8V, VIN = VDD or GND 7 +25oC VOH >

VDD = 20V, VIN = VDD or GND 7 +25oC VDD = 18V, VIN = VDD or GND 8A +125oC VDD = 3V, VIN = VDD or GND 8B -55oC

Input Voltage Low (Note 2)

Input Voltage High (Note 2)

Input Voltage Low (Note 2)

Input Voltage High (Note 2)

NOTES: 1. All voltages referenced to device GND, 100% testing being

implemented.

2. Go/No Go test with limits applied to inputs

VIL VDD = 5V, VOH > 4.5V, VOL < 0.5V 1, 2, 3 +25oC, +125oC, -55oC - 1.5 V

VIH VDD = 5V, VOH > 4.5V, VOL < 0.5V 1, 2, 3 +25oC, +125oC, -55oC 3.5 - V

VIL VDD = 15V, VOH > 13.5V,

VOL < 1.5V

VIH VDD = 15V, VOH > 13.5V,

VOL < 1.5V

Thermal Resistance . . . . . . . . . . . . . . . . θ

Ceramic DIP and FRIT Package. . . . . 80oC/W 20oC/W

Flatpack Package . . . . . . . . . . . . . . . . 70oC/W 20oC/W

Maximum Package Power Dissipation (PD) at +125oC

For TA = -55oC to +100oC (Package Type D, F, K). . . . . . 500mW

For TA = +100oC to +125oC (Package Type D, F, K) . . . . .Derate

Linearity at 12mW/oC to 200mW

Device Dissipation per Output Transistor . . . . . . . . . . . . . . . 100mW

For TA = Full Package Temperature Range (All Package Types)

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175oC

GROUP A

SUBGROUPS TEMPERATURE

2 +125oC - 1000 µA

2 +125oC -1000 - nA

2 +125oC - 1000 nA

1, 2, 3 +25oC, +125oC, -55oC- 4 V

1, 2, 3 +25oC, +125oC, -55oC11 - V

3. For accuracy, voltage is measured differentially to VDD. Limit is 0.050V max.

LIMITS

VDD/2

VOL < VDD/2

UNITSMIN MAX

7-641

Speciﬁcations CD14538BMS

TABLE 2. AC ELECTRICAL PERFORMANCE CHARACTERISTICS

GROUP A

PARAMETER SYMBOL CONDITIONS (Note 1, 2)

Propagation Delay +TR or -TR to Q or Q

Propagation Delay Reset to Q or Q

Transition Time TTHL

NOTES:

1. CL = 50pF, RL = 200K, Input TR, TF < 20ns.

2. -55oC and +125oC limits guaranteed, 100% testing being implemented.

PARAMETER SYMBOL CONDITIONS NOTES TEMPERATURE

Supply Current IDD VDD = 5V, VIN = VDD or GND 1, 2 -55oC, +25oC- 5 µA

Output Voltage VOL VDD = 5V, No Load 1, 2 +25oC, +125oC,

Output Voltage VOL VDD = 10V, No Load 1, 2 +25oC, +125oC,

Output Voltage VOH VDD = 5V, No Load 1, 2 +25oC, +125oC,

Output Voltage VOH VDD = 10V, No Load 1, 2 +25oC, +125oC,

Output Current (Sink) IOL5 VDD = 5V, VOUT = 0.4V 1, 2 +125oC 0.36 - mA

Output Current (Sink) IOL10 VDD = 10V, VOUT = 0.5V 1, 2 +125oC 0.9 - mA

Output Current (Sink) IOL15 VDD = 15V, VOUT = 1.5V 1, 2 +125oC 2.4 - mA

Output Current (Source) IOH5A VDD = 5V, VOUT = 4.6V 1, 2 +125oC - -0.36 mA

Output Current (Source) IOH5B VDD = 5V, VOUT = 2.5V 1, 2 +125oC - -1.15 mA

Output Current (Source) IOH10 VDD = 10V, VOUT = 9.5V 1, 2 +125oC - -0.9 mA

Output Current (Source) IOH15 VDD =15V, VOUT = 13.5V 1, 2 +125oC - -2.4 mA

Input Voltage Low VIL1 VDD = 10V , VOH > 9V, VOL < 1V 1, 2 +25oC, +125oC,

Input Voltage High VIH VDD = 10V, VOH > 9V, VOL <

TPHL1 TPLH1

TPHL2 TPLH2

TTLH

VDD = 5V, VIN = VDD or GND 9 +25oC - 600 ns

VDD = 5V, VIN = VDD or GND 9 +25oC - 500 ns

VDD = 5V, VIN = VDD or GND 9 +25oC - 200 ns

TABLE 3. ELECTRICAL PERFORMANCE CHARACTERISTICS

VDD = 10V, VIN = VDD or GND 1, 2 -55oC, +25oC- 10µA

VDD = 15V, VIN = VDD or GND 1, 2 -55oC, +25oC- 10µA

SUBGROUPS TEMPERATURE

10, 11 +125oC, -55oC - 810 ns

10, 11 +125oC, -55oC - 675 ns

10, 11 +125oC, -55oC - 270 ns

+125oC - 150 µA

+125oC - 300 µA

+125oC - 600 µA

-55oC

-55oC 0.64 - mA

-55oC 1.6 - mA

-55oC 4.2 - mA

-55oC - -0.64 mA

-55oC - -2.0 mA

-55oC - -1.6 mA

-55oC - -4.2 mA

-55oC

1, 2 +25oC, +125oC,

-55oC

LIMITS

UNITSMIN MAX

LIMITS

UNITSMIN MAX

-50mV

4.95 - V

9.95 - V

-3V

+7 - V

7-642

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