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MC54/74F537 1-OF-10 DECODER WITH 3-STATE OUTPUTS
The MC54 / 74F537 is a one-of-ten decoder/demultiplexer with four active HIGH BCD inputs and ten mutually exclusive outputs. A polarity control input determines whether the outputs are active LOW or active HIGH. The MC54 / 74F537 has 3-state outputs, and a HIGH signal on the Output Enable (OE) input forces all outputs to the high impedance state. Two input enables, active HIGH E2 and active LOW E1, are available for demultiplexing data to the selected output in either non-inverted or inverted form. Input codes greater than BCD nine cause all outputs to go to the inactive state (i.e., same polarity as the P input).
1-OF-10 DECODER WITH 3-STATE OUTPUTS
FASTTM SCHOTTKY TTL
* * * * *
Demultiplexing Capability 3-State Outputs Multiple Input Enable for Expansion Polarity Control Input ESD Protection > 4000 Volts CONNECTION DIAGRAM DIP (TOP VIEW)
VCC O3 20 19 O4 18 A3 17 A2 16 E1 15 E2 14 O9 13 O8 12 O7 11
20 1
J SUFFIX CERAMIC CASE 732-03
20 1
N SUFFIX PLASTIC CASE 738-03
20
DW SUFFIX SOIC CASE 751D-03
1
1 O2
2 O1
3 O0
4 P
5 OE
6 A0
7 A1
8 O5
9
10
O6 GND
ORDERING INFORMATION LOGIC DIAGRAM
A3 A2 A1 A0 E1 E2 P 15 14 5 MC54FXXXJ Ceramic MC74FXXXN Plastic MC74FXXXDW SOIC
LOGIC SYMBOL
4 6 7 16 17
P A0 A1 A2 A3 E1 E2 OE O0 O1 O2 O3 O4 O5 O6 O7 O8 O9 3 2 1 19 18 8 9 11 12 13
OE O0 O1 O2 O3 O4 O5 O6 O7 O8 O9
VCC = PIN 20 GND = PIN 10
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
FAST AND LS TTL DATA 4-203
MC54/74F537
GUARANTEED OPERATING RANGES
Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range 74 Output Current -- High Output Current -- Low 54, 74 54, 74 0 25 70 - 3.0 24 Parameter 54, 74 54 Min 4.5 - 55 Typ 5.0 25 Max 5.5 125 Unit V C mA mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits Symbol VIH VIL VIK VOH VOL IOZH IOZL IIH IIL IOS ICCZ Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage 54, 74 Output HIGH Voltage 74 Output LOW Voltage Output OFF Current -- HIGH Output OFF Current -- LOW Input HIGH Current 0.1 Input LOW Current Output Short Circuit Current (Note 2) Power Supply Current - 60 44 - 0.6 -150 66 2.7 0.5 50 - 50 20 V V A A A mA mA mA mA 2.4 Min 2.0 0.8 - 1.2 Typ Max Unit V V V V Test Conditions Guaranteed Input HIGH Voltage Guaranteed Input LOW Voltage IIN = - 18 mA IOH = - 3.0 mA IOH = - 3.0 mA IOL = 24 mA VOUT = 2.7 V VOUT = 0.5 V VCC = MIN VCC = 4.5 V VCC = 4.75 V VCC = MIN VCC = MAX VCC = MAX
VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.5 V VCC = MAX, VOUT = 0 V VCC = MAX: A0 - A3, E1 = GND OE, E2, P = HIGH
AC CHARACTERISTICS
54 / 74F TA = + 25C VCC = + 5.0 V CL = 50 pF Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay An to On Propagation Delay E1 to On Propagation Delay E2 to On Propagation Delay P to On Output Enable Time OE to On Output Disable Time OE to On Min 4.0 2.5 4.0 3.0 6.0 4.0 5.0 3.5 2.5 4.0 1.5 1.5 Typ Max 14 11 11 11 11.5 11.5 16 11.5 7.0 8.0 6.0 6.5 54F TA = -55 to +125C VCC = 5.0 V 10% CL = 50 pF Min 3.5 2.0 4.0 3.0 5.0 4.0 5.0 3.5 2.5 4.0 1.0 1.0 Max 19 15 14 14 15 14.5 21 13 11 10 8 8 74F TA = 0 to 70C VCC = 5.0 V 10% CL = 50 pF Min 3.5 2.0 4.0 3.0 5.0 4.0 4.5 3.5 2.5 4.0 1.0 1.0 Max 16 12 ns 12 12 13 12.5 ns 17 12 8.0 9.0 ns 7.0 7.0 Unit
FAST AND LS TTL DATA 4-204
MC54/74F537
TRUTH TABLE
INPUTS FUNCTION OE HIGH Impedance Disable H L L L L L L Active HIGH Output (P = L) L L L L L L L L L L L L Active LOW Output (P = H) L L L L L L L L
H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High Impedance
OUTPUTS A2 X X X L L L L H H H H L L X H L L L L H H H H L L X H A1 X X X L L H H L L H H L L H X L L H H L L H H L L H X A0 X X X L H L H L H L H L H X X L H L H L H L H L H X X H L L L L L L L L L L L L H H H H H H H H H H H L H L L L L L L L L L L H L H H H H H H H H H H L L H L L L L L L L L L H H L H H H H H H H H H 00 Z 01 Z 02 Z O3 Z 04 Z 05 Z 06 Z 07 Z 08 Z 09 Z
E1 X H X L L L L L L L L L L L L L L L L L L L L L L L L
E2 X X L H H H H H H H H H H H H H H H H H H H H H H H H
A3 X X X L L L L L L L L H H H H L L L L L L L L H H H H
Outputs Equal P Input L L L H L L L L L L L L H H H L H H H H H H H H L L L L H L L L L L L L H H H H L H H H H H H H L L L L L H L L L L L L H H H H H L H H H H H H L L L L L L H L L L L L H H H H H H L H H H H H L L L L L L L H L L L L H H H H H H H L H H H H L L L L L L L L H L L L H H H H H H H H L H H H L L L L L L L L L H L L H H H H H H H H H L H H
FAST AND LS TTL DATA 4-205

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