View N74F538D_101110.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

INTEGRATED CIRCUITS
74F538 1-of -8 decoder (3-state)
Product specification IC15 Data Handbook 1989 Apr 06
Philips Semiconductors
Philips Semiconductors
Product specification
1-of-8 decoder (3-State)
74F538
DESCRIPTION
The 74F538 decoder/demultiplexer accepts three address (A0 - A2) input signals and decodes them to select one of eight mutually exclusive outputs. A Polarity control (P) input determines whether the outputs are active Low or active High. The 74F538 has 3-State outputs, and a High signal on the Output Enables (OEn) inputs will force all outputs to the high impedance state. Two active High (E2, E3) and two active Low (E0, E1) inputs are available for easy expansion to 1-of-32 decoding with four packages, or for data demultiplexing to 1-of-8 or 1-of-16 destinations. TYPICAL SUPPLY CURRENT (TOTAL) 35mA
PIN CONFIGURATION
Q2 Q1 Q0 OE0 OE1 A0
1 2 3 4 5 6 7 8 9
20 VCC 19 Q3 18 Q4 17 A2 16 E0 15 E1 14 E2 13 E3 12 P 11 Q7
TYPE 74F538
TYPICAL PROPAGATION DELAY 8.5ns
A1 Q5 Q6
GND 10
ORDERING INFORMATION
DESCRIPTION 20-Pin Plastic DIP 20-Pin Plastic SOL COMMERCIAL RANGE VCC = 5V 10%, Tamb = 0C to +70C N74F538N N74F538D PKG DWG # SOT146-1 SOT163-1
SF00996
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS A0 - A2 E0, E1 E2, E3 P OE0, OE1 Q0 - Q7 Address inputs Enable inputs (active Low) Enable inputs (active High) Polarity control input Output Enable inputs Data outputs DESCRIPTION 74F(U.L.) HIGH/LOW 1.0/1.0 1.0/1.0 1.0/1.0 1.0/1.0 1.0/1.0 150/40 LOAD VALUE HIGH/LOW 20A/0.6mA 20A/0.6mA 20A/0.6mA 20A/0.6mA 20A/0.6mA 3.0mA/24mA
NOTE: One (1.0) FAST Unit Load is defined as: 20A in the High state and 0.6mA in the Low state.
LOGIC SYMBOL
6 7 17
LOGIC SYMBOL (IEEE/IEC)
DMUX 4 A0 A1 A2 5 6 7 17 N8 & EN 3 0,8 1,8 0 2 G 0 7 2,8 3,8 4,8 13 Q1 Q2 Q3 Q4 Q5 Q6 Q7 14 15 16 & 5,8 6,8 7,8 2 1 19 18 8 9 11
12 16 15 14 13 4 5
P E0 E1 E2 E3 OE0 OE1 Q0
VCC = Pin 20 GND = Pin 10
3
2
1
19
18
8
9
11
SF00997
SF00998
1989 Apr 06
2
853-1273 96267
Philips Semiconductors
Product specification
1-of-8 decoder (3-State)
74F538
LOGIC DIAGRAM
A2 17
A1
7
A0
6
E0 E1 E2
16 15 14
E3 13 12 P
OE0
4
VCC = GND =
Pin 20 Pin 10
OE1
5
3 Q0
2 Q1
1 Q2
19 Q3
18 Q4
8 Q5
9 Q6
11 Q7
SF00999
FUNCTION TABLE
INPUTS OE0 H X L L L L L L L L L L L L L L L L L L L L H L X Z = = = = OE1 X H L L L L L L L L L L L L L L L L L L L L E0 X X H X X X L L L L L L L L L L L L L L L L E1 X X X H X X L L L L L L L L L L L L L L L L E2 X X X X L X H H H H H H H H H H H H H H H H E3 X X X X X L H H H H H H H H H H H H H H H H A2 X X X X X X L L L L H H H H L L L L H H H H A1 X X X X X X L L H H L L H H L L H H L L H H A0 X X X X X X L H L H L H L H L H L H L H L H H L L L L L L L L H H H H H H H L H L L L L L L H L H H H H H H Q0 Z Z Q1 Z Z Q2 Z Z OUTPUTS Q3 Z Z Q4 Z Z Q5 Z Z Q6 Z Z Q7 Z Z OPERATING MODE High Impedance
Outputs equal P input
Disable
L L H L L L L L H H L H H H H H
L L L H L L L L H H H L H H H H
L L L L H L L L H H H H L H H H
L L L L L H L L H H H H H L H H
L L L L L L H L H H H H H H L H
L L L L L L L H H H H H H H H L
Active High output out ut (P = L)
Active Low out ut output (P = H)
High voltage level Low voltage level Don't care High impedance "off" state
1989 Apr 06
3
Philips Semiconductors
Product specification
1-of-8 decoder (3-State)
74F538
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.) SYMBOL VCC VIN IIN VOUT IOUT Tamb Tstg Supply voltage Input voltage Input current Voltage applied to output in High output state Current applied to output in Low output state Operating free-air temperature range Storage temperature PARAMETER RATING -0.5 to +7.0 -0.5 to +7.0 -30 to +5.0 -0.5 to +VCC 48 0 to +70 -65 to +150 UNIT V V mA V mA C C
RECOMMENDED OPERATING CONDITIONS
SYMBOL VCC VIH VIL IIK IOH IOL Tamb Supply voltage High-level input voltage Low-level input voltage Input clamp current High-level output current Low-level output current Operating free-air temperature range 0 PARAMETER LIMITS MIN 4.5 2.0 0.8 -18 -3.0 24 70 NOM 5.0 MAX 5.5 UNIT V V V mA mA mA C
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL VOH VO OL VIK II IIH IIL IOZH IOZL IOS PARAMETER High-level High level output voltage TEST CONDITIONS1 VCC = MIN, VIL = MAX, VIH = MIN, IOH = MAX VCC = MIN, VIL = MAX, VIH = MIN, IOL = MAX VCC = MIN, II = IIK VCC = MAX, VI = 7.0V VCC = MAX, VI = 2.7V VCC = MAX, VI = 0.5V VCC = MAX, VO = 2.7V VCC = MAX, VO = 0.5V VCC = MAX ICCH ICC Supply current ICCL ICCZ VCC = MAX -60 30 35 35 10%VCC 5%VCC 10%VCC 5%VCC LIMITS MIN 2.4 2.7 3.3 0.35 0.35 -0.73 0.50 0.50 -1.2 100 20 -0.6 50 -50 -150 40 50 50 TYP2 MAX UNIT V V V V V A A mA A A mA mA mA
Low level output voltage Low-level Input clamp voltage Input current at maximum input voltage High-level input current Low-level input current Off-state output current High-level voltage applied Off-state output current Low-level voltage applied Short-circuit output current3
mA NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value under the recommended operating conditions for the applicable type. 2. All typical values are at VCC = 5V, Tamb = 25C. 3. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any sequence of parameter tests, IOS should be performed last. 1989 Apr 06 4
Philips Semiconductors
Product specification
1-of-8 decoder (3-State)
74F538
AC ELECTRICAL CHARACTERISTICS
LIMITS SYMBOL PARAMETER TEST CONDITIONS Tamb = +25C VCC = +5.0V CL = 50pF, RL = 500 MIN tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation delay An to Qn Propagation delay E0 or E1 to Qn Propagation delay E2 or E3 to Qn Propagation delay P to Qn Output Enable time OE0 or OE1 to Qn Output Disable time OE0 or OE1 to Qn Waveform 1, 2 Waveform 1, 2 Waveform 1, 2 Waveform 1, 2 Waveform 3 Waveform 4 Waveform 3 Waveform 4 5.5 3.0 5.5 3.0 6.5 4.0 4.5 3.5 2.5 6.5 1.0 1.0 TYP 8.5 7.5 8.5 7.5 9.0 7.0 9.5 6.5 5.5 9.5 3.0 3.5 MAX 13.0 12.5 12.0 12.0 12.5 12.5 15.0 10.0 9.5 13.5 6.0 8.5 Tamb = 0C to +70C VCC = +5.0V 10% CL = 50pF, RL = 500 MIN 5.0 3.0 5.0 3.0 5.5 3.5 4.0 3.5 2.0 6.0 1.0 1.0 MAX 14.0 13.5 13.0 12.5 13.5 13.0 16.5 10.5 11.0 15.0 7.0 9.5 ns ns ns ns ns ns ns ns ns ns ns ns UNIT
AC WAVEFORMS
For all waveforms, VM = 1.5V.
An, P, En, En
VM tPLH
VM tPHL VM VM
An, P, En, En
VM tPHL
VM tPLH VM VM
Qn
Qn
SF01000
SF01001
Waveform 1. Propagation Delay for Non-Inverting Outputs
Waveform 2. Propagation Delay for Inverting Outputs
OEn
VM tPZH
VM tPHZ VM 0V VOH -0.3V
OEn
VM tPZL
VM tPLZ VM VOL +0.3V
Qn
Qn
SF01002
SF01003
Waveform 3. 3-State Output Enable Time to High Level and Output Disable Time from High Level
Waveform 4. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level
1989 Apr 06
5
Philips Semiconductors
Product specification
1-of-8 decoder (3-State)
74F538
TEST CIRCUIT AND WAVEFORM
VCC 7.0V VIN PULSE GENERATOR RT D.U.T. VOUT RL NEGATIVE PULSE 90% VM 10% tTHL (tf ) CL RL tTLH (tr ) 90% POSITIVE PULSE 10% tTHL (tf ) AMP (V) 90% VM tw 10% 0V tw VM 10% tTLH (tr ) 0V AMP (V)
90%
Test Circuit for 3-State Outputs SWITCH POSITION TEST tPLZ tPZL All other SWITCH closed closed open
VM
Input Pulse Definition
DEFINITIONS: RL = Load resistor; see AC electrical characteristics for value. CL = Load capacitance includes jig and probe capacitance; see AC electrical characteristics for value. RT = Termination resistance should be equal to ZOUT of pulse generators.
INPUT PULSE REQUIREMENTS family amplitude VM 74F 3.0V 1.5V rep. rate 1MHz tw 500ns tTLH 2.5ns tTHL 2.5ns
SF00777
1989 Apr 06
6
Philips Semiconductors
Product specification
1-of -8 decoder (3-state)
74F538
DIP20: plastic dual in-line package; 20 leads (300 mil)
SOT146-1
1989 Apar 06
7
Philips Semiconductors
Product specification
1-of -8 decoder (3-state)
74F538
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
1989 Apar 06
8
Philips Semiconductors
Product specification
1-of -8 decoder (3-state)
74F538
NOTES
1989 Apar 06
9
Philips Semiconductors
Product specification
1-of -8 decoder (3-state)
74F538
Data sheet status
Data sheet status Objective specification Preliminary specification Product specification Product status Development Qualification Definition [1] This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make chages at any time without notice in order to improve design and supply the best possible product. This data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product.
Production
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes -- Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088-3409 Telephone 800-234-7381 (c) Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. print code Document order number: Date of release: 10-98 9397-750-05133
Philips Semiconductors
yyyy mmm dd 10

▲Up To Search▲

Price & Availability of N74F538D

	To Download N74F538D Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .