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Part: 74F157
Category:
Description: Data Selectors/multiplexers
Company: Philips Semiconductors
Datasheet: Download 74F157 datasheet File size : 93 kB
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INTEGRATED CIRCUITS
74F157*, 74F157A, 74F158*, 74F158A Data selectors/multiplexers
* Discontinued part. Please see the Discontinued Product List in Section 1, page 21.
Product specification IC15 Data Handbook
1996 Mar 12
Philips Semiconductors
Philips Semiconductors
Product specification
Data selectors/multiplexers
74F157A: 74F158A:
DESCRIPTION
The 74F157A is a high speed Quad 2-Input Multiplexer which selects 4 bits of data from one of two sources under the control of a common Select input (S). The Enable input (E) is active when Low. When E is High, all of the outputs (Yn) are forced Low regardless of all other input conditions. Moving data from two registers to a common output bus is a common use of the 74F157A. The state of the Select input determines the particular register from which the data comes. The device is the logic implementation of a 4-pole, 2-position switch where the position of the switch is determined by the logic levels supplied to the Select input. The 74F158A is similar, but has inverting outputs (Yn).
74F157A, 74F158A
Quad 2-input data selector/multiplexer, non-inverting Quad 2-input data selector/multiplexer, inverting
· Industrial temperature range (10°C to +85°C) available for
74F157A TYPICAL PROPAGATION DELAY 4.6ns 4.6ns 3.7ns 3.7ns TYPICAL SUPPLY CURRENT (TOTAL) 15mA 15mA 10mA 10mA
TYPE 74F157 74F157A 74F158 74F158A
ORDERING INFORMATION
ORDER CODE DESCRIPTION 16-pin plastic DIP 16-pin plastic SO COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C N74F157AN, N174F158AN N74F157AD, N74F158AD INDUSTRIAL RANGE VCC = 5V ±10%, Tamb = 40°C to +85°C I74F157AN I74F157AD PKG. DWG. # SOT38-4 SOT109-1
INPUT AND OUTPUT LOADING AND FAN OUT TABLE
PINS Ina, Inb, Inc, Ind S E YaYd YaYd Data inputs Select input Enable input Data outputs (74F157/74F157A) Data outputs (74F158/74F158A) DESCRIPTION 74F (U.L.) HIGH/LOW 1.0/1.0 1.0/1.0 1.0/1.0 50/33 50/33 LOAD VALUE HIGH/LOW 20µA/0.6mA 20µA/0.6mA 20µA/0.6mA 1.0mA/20mA 1.0mA/20mA
NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state.
PIN CONFIGURATIONS, 74F157A
S I0a I1a Ya I0b I1b Yb GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC E I0d I1d Yd I0c I1c Yc S I0a I1a Ya I0b I1b Yb GND
74F158A
1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC E I0d I1d Yd I0c I1c Yc
SF00215
SF00216
LOGIC SYMBOLS, 74F157A
2 3 5 6 11 10 14 13 2
74F158A
3 5 6 11 10 14 13
I0a I1a I0b 1 15 S E Ya
I1b
I0c
I1c
I0d I1d 1 15 S E
I0a I1a I0b
I1b
I0c
I1c
I0d I1d
Yb
Yc
Yd
Ya
Yb
Yc
Yd
VCC = Pin 16 GND = Pin 8
4
7
9
12
SF00217
VCC = Pin 16 GND = Pin 8
4
7
9
12
SF00218
1996 Mar 12
2
853-0346 16555
Philips Semiconductors
Product specification
Data selectors/multiplexers
74F157A, 74F158A
IEEE/IEC SYMBOLS, 74F157A
1 15 G1 EN 1 15
74F158A
G1 EN
2 3 5 6 11 10 14 13
1 1
MUX 4
2 3
1 1
MUX 4
7
5 7 6 11 10
9
9
12
14 12 13
SF00219
SF00220
LOGIC DIAGRAM, 74F157A
I0a 2 I1a 3 I0b 5 I1b 6 I0c 11 I1c 10 I0d 14 I1d 13 E 15 S 1 I0a 2 I1a 3 I0b 5 I1b 6
74F158A
I0c 11 I1c 10 I0d 14 I1d 13 E 15 S 1
4 Ya VCC = Pin 16 GND = Pin 8 Yb
7 Yc
9
12 Yd Ya
4 Yb
7 Yc
9
12 Yd
SF00225
VCC = Pin 16 GND = Pin 8
SF00226
FUNCTION TABLE, 74F157A
INPUTS E H L L L L S X H H L L I0n X X X L H I1n X L H X X OUTPUT Yn L L H L H E H L L L L S X L L H H
74F158A
INPUTS I0n X L H X X I1n X X X L H OUTPUT Yn H H L H L
H = High voltage level L = Low voltage level X = Don't care
H = High voltage level L = Low voltage level X = Don't care
1996 Mar 12
3
Philips Semiconductors
Product specification
Data selectors/multiplexers
74F157A, 74F158A
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit 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 free-air tem range Storage temperature range Commercial Range Industrial Range 74F157A only PARAMETER RATING 0.5 to +7.0 0.5 to +7.0 30 to +5 0.5 to VCC 40 0 to +70 40 to +85 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 Commercial Range Operating free air temperature range free air temperature range Industrial Range 74F157A only 0 40 PARAMETER MIN 4.5 2.0 0.8 18 1 20 70 85 °C LIMITS NOM 5.0 MAX 5.5 V V V mA mA mA UNIT
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL VOH VOL VIK II IIH IIL IOS ICC PARAMETER High-level output voltage out voltage Low-level output voltage out voltage Input clamp voltage Input current at maximum input voltage High-level input current Low-level input current Short-circuit output current3 Supply current (total)4 current (total) 74F157A 74F158A TEST CONDITIONS1 CONDITIONS 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 VCC = MAX MAX 60 15.0 14.0 ±10%VCC ±5%VCC ±10%VCC ±5%VCC LIMITS MIN 2.5 2.7 3.4 0.30 0.30 0.73 0.50 0.50 1.2 100 20 0.6 150 23.0 19.0 TYP2 MAX UNIT V V V µA µA mA mA mA mA
NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type. 2. All typical values are at VCC = 5V, Tamb = 25°C. 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 tests should be performed last. 4. ICC is measured with 4.5V applied to all inputs and all outputs open.
1996 Mar 12
4
Philips Semiconductors
Product specification
Data selectors/multiplexers
74F157A, 74F158A
AC ELECTRICAL CHARACTERISTICS FOR 74F157A AND 74F158A
LIMITS TEST CONDITION VCC = +5.0V Tamb = +25°C CL = 50pF RL = 500 MIN tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL Propagation delay I0n, I1n to Yn Propagation delay E to Yn Propagation delay S to Yn Propagation delay I0n, I1n to Yn Propagation delay E to Yn Propagation delay S to Yn 74F158A 74F157A Waveform 1 Waveform 3 Waveform 1 Waveform 2 Waveform 4 Waveform 2 3.5 2.5 6.0 4.0 5.5 4.5 3.0 1.5 4.5 5.0 4.5 4.0 TYP 4.5 3.5 7.5 5.0 7.5 6.0 4.0 2.5 5.5 6.0 6.5 5.5 MAX 6.5 5.0 9.0 6.5 10.0 7.5 6.0 4.0 7.0 7.5 8.5 7.5 VCC = +5.0V ± 10% Tamb = 0°C to +70°C CL = 50pF RL = 500 MIN 3.0 1.5 5.5 4.0 5.0 4.0 2.5 1.0 4.0 5.0 4.0 3.5 MAX 7.0 6.0 10.5 7.0 11.0 8.5 7.0 4.5 7.5 8.0 9.5 8.0 VCC = +5.0V ± 10% Tamb = 40°C to +85°C CL = 50pF RL = 500 MIN 3.0 1.5 5.5 4.0 5.0 4.0 -- -- -- MAX 7.5 6.5 11.0 7.5 11.5 9.0 -- -- -- ns ns ns ns ns ns
SYMBOL
PARAMETER
UNIT
AC WAVEFORMS
For all waveforms, VM = 1.5V
I0n, I1n, S
VM tPHL
I0n, I1n, S VM tPLH
VM tPLH
VM tPHL
Yn
VM
VM
Yn
VM
VM
SF00221
SF00222
Waveform 1.
Propagation Delay for Data and Select to Output
Waveform 2.
Propagation Delay for Data and Select to Output
E
VM tPLH
VM tPHL
E
VM tPHL
VM tPLH
Yn
VM
VM
Yn
VM
VM
SF00223
SF00224
Waveform 3.
Propagation Delay for Enable to Output
Waveform 4.
Propagation Delay for Enable to Output
1996 Mar 12
5
Others parts begin by 74
74-1 74-2 74-3 74-4 74-5 74-6 74-7 74-8 74-9 74-10 74-11 74-12 74-13 74-14 74-15 74-16 74-17 74-18 74-19 74-20 74-21 74-22 74-23 74-24 74-25 74-26 74-27 74-28 74-29 74-30 74-31 74-32 74-33 74-34 74-35 74-36 74-37 74-38 74-39 74-40 74-41 74-42 74-43 74-44 74-45 74-46 74-47 74-48 74-49 74-50 74-51 74-52 74-53 74-54 74-55 74-56 74-57 74-58 74-59 74-60 74-61 74-62
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