m54hc237k1 STMicroelectronics, m54hc237k1 Datasheet

m54hc237k1

Manufacturer Part Number

m54hc237k1

Description

3 To 8 Line Decoder Latch

Manufacturer

STMicroelectronics

Datasheet

1.M54HC237K1.pdf (10 pages)

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DESCRIPTION

The M54HC237 is an high speed CMOS 3 TO 8

LINE DECODER fabricated with silicon gate

PIN CONNECTION

April 2004

MOS technology.

HIGH SPEED:

LOW POWER DISSIPATION:

HIGH NOISE IMMUNITY:

SYMMETRICAL OUTPUT IMPEDANCE:

BALANCED PROPAGATION DELAYS:

WIDE OPERATING VOLTAGE RANGE:

PIN AND FUNCTION COMPATIBLE WITH

54 SERIES 237

SPACE GRADE-1: ESA SCC QUALIFIED

50 krad QUALIFIED, 100 krad AVAILABLE ON

REQUEST

NO SEL UNDER HIGH LET HEAVY IONS

IRRADIATION

DEVICE FULLY COMPLIANT WITH

SCC-9205-021

PLH

NIH

= 16ns (TYP.) at V

= 4 A(MAX.) at T

| = I

(OPR) = 2V to 6V

= V

PHL

NIL

= 4mA (MIN)

= 28% V

=25°C

(MIN.)

= 6V

RAD-HARD 3 TO 8 LINE DECODER LATCH

ORDER CODES

When GL goes from low to high, the address

present at the select inputs (A, B, C) is stored in

the latches. As long as GL remains high no

address changes will be recognized. Output

enable controls, G1 and G2 control the state of the

outputs

latch-enable inputs. All of the outputs are low

unless G1 is high and G2 is low. The M54HC237

is ideally suited for the implementation of

glitch-free

applications in bus oriented systems.

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

PACKAGE

DILC

FPC

DILC-16

independently

decoders

M54HC237D

M54HC237K

M54HC237

the

FPC-16

M54HC237D1

M54HC237K1

stored-address

select

1/10

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m54hc237k1 Summary of contents

Page 1

... G1 is high and G2 is low. The M54HC237 is ideally suited for the implementation of glitch-free applications in bus oriented systems. All inputs are equipped with protection circuits against static discharge and transient excess voltage. M54HC237 DILC-16 FPC- M54HC237D M54HC237D1 M54HC237K M54HC237K1 independently of the select decoders in stored-address or 1/10 ...

Page 2

M54HC237 IEC LOGIC SYMBOLS INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUTS ENABLE SELECT ...

Page 3

LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output ...

Page 4

M54HC237 DC SPECIFICATIONS Symbol Parameter V V High Level Input IH Voltage V Low Level Input IL Voltage V High Level Output OH Voltage V Low Level Output OL Voltage I Input Leakage I Current I Quiescent Supply CC Current ...

Page 5

AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH PHL Time ( Propagation Delay PLH PHL Time ( Propagation Delay ...

Page 6

M54HC237 TEST CIRCUIT C = 50pF or equivalent (includes jig and probe capacitance pulse generator (typically OUT WAVEFORM 1: PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle) 6/10 ...

Page 7

WAVEFORM 2: SETUP AND HOLD TIME, MINIMUM PULSE WIDTH (GL)(f=1MHz; 50% duty cycle) M54HC237 7/10 ...

Page 8

M54HC237 DIM. MIN. A 2.1 a1 3.00 a2 0.63 B 1.82 b 0.40 b1 0.20 D 20. 17.65 e3 7. 10.90 L 1.14 8/10 DILC-16 MECHANICAL DATA mm. TYP MAX. 2.71 3.70 ...

Page 9

FPC-16 MECHANICAL DATA DIM. MIN. A 6.75 B 9.76 C 1.49 D 0.102 0.127 E 8. 0.38 H 6.0 L 18. mm. TYP MAX. MIN. 6.91 7.06 0.266 9.94 ...

Page 10

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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