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Part: 74F242
Category:
Logic
-> Transceivers
Description: 74F242; 74F243; Quad Transceiver, Inverting (3-State); Quad Transceiver (3-State);; Package: SOT108-1 (SO14), SOT27-1 (DIP14)
Company: Philips Semiconductors
Datasheet: Download 74F242 datasheet File size : 19 kB
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Datasheet text preview:
INTEGRATED CIRCUITS
74F242 Quad transceiver, inverting (3-State) 74F243 Quad transceiver (3-State)
Product specification IC15 Data Handbook 1990 Aug 31
Philips Semiconductors
Philips Semiconductors
Product specification
Transceivers
74F242 Quad Transceiver, Inverting (3-State) 74F243 Quad Transceiver (3-State)
74F242/74F243
PIN CONFIGURATION
OEA NC A0 A1 A2 A3 GND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC OEB NC B0 B1 B2 B3
TYPE 74F242 74F243
TYPICAL PROPAGATION DELAY 4.3ns 4.0ns
TYPICAL SUPPLY CURRENT (TOTAL) 31.2mA 66mA
ORDERING INFORMATION
DESCRIPTION 14-pin plastic DIP 14-pin plastic SO COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C N74F242N, N74F243N N74F242D, N74F243D PKG DWG # SOT27-1 SOT108-1
SF00765
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS An, Bn An, Bn OEA OEB An, Bn DESCRIPTION Data inputs (74F242) Data inputs (74F243) Output enable input (active Low) Output enable input Data outputs 74F (U.L.) HIGH/LOW 3.5/1.67 3.5/2.67 1.0/1.67 1.0/1.67 750/106.7 LOAD VALUE HIGH/LOW 70µA/1.0mA 70µA/1.6mA 20µA/1.0mA 20µA/1.0mA 15mA/64mA
NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state.
LOGIC SYMBOLS
74F242
3 4 5 6 3 4 5 6
74F243
A0
A1
A2
A3 A0 A1 A2 A3
1 13
OEA 1 OEB 13 B0 B1 B2 B3 B0 B1 B2 B3 OEA OEB
VCC = Pin 14 GND = Pin 7
11
10
9
8
VCC = Pin 14 GND = Pin 7
11
10
9
8
SF00767
SF00768
1990 Aug 30
2
8530356 00285
Philips Semiconductors
Product specification
Transceivers
74F242/74F243
LOGIC SYMBOLS (IEEE/IEC)
74F242
1 13 EN1 EN2 1 13
74F243
EN1 EN2
3
1 2
11
3
1 2
11
4
10
4
10
5
9
5
9
6
8
6
8
SF00769
SF00770
74F242
OEA 1 OEA 1
74F243
A0
3
11
B0
A0
3
11
B0
A1
4
10
B1
A1
4
10
B1
A2
5
9
B2
A2
5
9
B2
A3
6
8
B3
A3
6
8
B3
VCC = Pin 14 GND = Pin 7
OEB
13
SF00771
VCC = Pin 14 GND = Pin 7
OEB
13
SF00772
LOGIC DIAGRAMS FUNCTION TABLE, 74F242
INPUTS OEA L H L H OEB L L H H An INPUT Z a A=B OUTPUTS Bn B=A Z a INPUT
FUNCTION TABLE, 74F243
INPUTS OEA L H L H OEB L L H H An INPUT Z a A=B OUTPUTS Bn B=A Z a INPUT
H = High voltage level L = Low voltage level Z = High impedance "off" state a = This condition is not allowed due to excessive currents
1990 Aug 30
3
Philips Semiconductors
Product specification
Transceivers
74F242/74F243
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 0.5 to VCC 128 0 to +70 65 to +150 UNIT V V mA V mA °C °C
RECOMMENDED OPERATING CONDITIONS
LIMITS 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 MIN 4.5 2.0 0.8 18 15 64 70 NOM 5.0 MAX 5.5 V V V mA mA mA °C UNIT
1990 Aug 30
4
Philips Semiconductors
Product specification
Transceivers
74F242/74F243
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL PARAMETER TEST CONDITIONS1 CONDITIONS VCC = MIN, VIL = MAX MAX, VIH = MIN VOH High-level output voltage output voltage VCC = MIN, VIL = MAX MAX, VIH = MIN Low-level output voltage output voltage 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 voltage applied Short-circuit output current3 ICCH 74F242 ICC Supply current (total) current (total) 74F243 ICCL ICCZ ICCH ICCL ICCZ VCC = MAX VCC = MAX 74F242 74F243 VCC = MAX, VO = 0 5V MAX 0.5V VCC = MAX 100 22 40 32 64 64 71 A0A3, B0B3 OEA, OEB OEA, OEB only VCC = MIN, VIL = MAX MAX, VIH = MIN IOL = 15mA 15mA ±10%VCC IOH = 3mA 3mA ±5%VCC ±10%VCC ±5%VCC ±10%VCC IOH=MAX ±5%VCC 0.42 0.73 LIMITS MIN 2.4 V 2.7 2.0 2.0 3.3 3.2 V 3.1 0.55 V 0.55 1.2 1 100 20 1 70 1.0 mA 1.6 225 35 55 45 80 90 90 mA mA mA mA mA mA mA V mA µA µA mA µA TYP2 MAX UNIT
VOL VIK II IIH IIL IIH+IOZH
VCC = MIN, II = IIK VCC = MAX, VI = 5.5V VCC = MAX, VI = 7.0V VCC = MAX, VI = 2.7V VCC = MAX, VI = 0.5V VCC = MAX, VO = 2.7V
IIL+IOZL IOS
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.
1990 Aug 30
5
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