Logic Products 7428 Buffer Quad Two-Input Buffer Produc

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Logic Products 7428 Buffer Quad Two-Input Buffer Produc

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Signetics
Logic Products
7428
Buffer
Quad Two-Input Buffer Product Specification
INPUTS
HIGH voltage level voltage level
OUTPUT
TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL)
7428 23mA
ORDERING CODE
PACKAGES COMMERCIAL RANGE
Plastic N7428N
Information regarding devices processed Military Specifications, Signetics Military Products Data Manual.
INPUT OUTPUT LOADING FAN-OUT TABLE
PINS DESCRIPTION
Inputs
Output 30ul
Where unit load <ul) understood 40/nA -1.6mA
CONFIGURATION
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
December 1985
LSOS380S
5-58
853-0552 81501
This Material Copyrighted Respective Manufacturer
Signetics Logic Products Product Specification
Buffer 7428
ABSOLUTE MAXIMUM RATINGS (Over operating free-air temperature range unless otherwise noted.)
PARAMETER UNIT
Supply voltage
Input voltage -0.5 +5.5
Input current
vout Voltage applied output HIGH output state -0.5 +Vcc
Operating free-air temperature range
RECOMMENDED OPERATING CONDITIONS
PARAMETER UNIT
Supply voltage 4.75 5.25
HIGH-level input voltage
LOW-level input voltage
Input clamp current
HIGH-level output current -2400
LOW-level output current
Operating free-air temperature
TEST CIRCUITS WAVEFORMS
Test Circuit Totem-Pole Outputs
DEFINITIONS
Load resistor Vcc; CHARACTERISTICS value. Load capacitance includes probe capacitance;
CHARACTERISTICS value. Termination resistance should equal Zout
Pulse Generators. Diodes 1N916, 1N3064, equivalent. tTLH. Ithl Values should less than equal table entries.
1.3V 74LS; 1.5V othfw families.
Input Pulse Definition
FAMILY INPUT PULSE REQUIREMENTS
Amplitude Rep. Rate Pulse Width tTLH t-THL
3.0V 1MHz 500ns
74LS 3.0V 1MHz 500ns 15ns
3.0V 500ns 2.5ns 2.5ns
December 1985 5-59
This Material Copyrighted Respective Manufacturer
Signetics Logic Products_Product Specification
Buffer 7428
ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.)
PARAMETER TEST CONDITIONS1 7428 UNIT
Typ2
HIGH-level output voltage MIN, MAX,
LOW-level output voltage MIN, MIN,
Input clamp voltage MIN, -1.5
Input current maximum input voltage MAX, 5.5V
HIGH-level input current MAX, 2.4V
LOW-level input current MAX, 0.4V -1.6
Short-circuit output current3 -180
Supply current (total) Icch Outputs HIGH
Iccl Outputs
NOTES:
conditions shown MAX, appropriate value specified under recommended operating conditions applicable type
typical values
istested with Vout +0.5V 0.5V. more than output should shorted time duration short circuit should exceed second.
WAVEFORM
voot
WF07570S
1.3V 74LS; 1.5V other families.
Waveform Waveform Inverting Outputs
ELECTRICAL CHARACTERISTICS 5.0v
PARAMETER TEST CONDITIONS UNIT
tpHL Propagation delay Waveform 50pF
'phl Propagation delay Waveform 150pF
December 1985 5-60
This Material Copyrighted Respective Manufacturer

Logic Products 7428 Buffer Quad Two-Input Buffer Produc

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