MM74HC643N
vs
SN74HC645N
feature comparison
All Stats
Differences Only
Rohs Code
Part Life Cycle Code
Obsolete
Active
Ihs Manufacturer
NATIONAL SEMICONDUCTOR CORP
TEXAS INSTRUMENTS INC
Package Description
DIP, DIP20,.3
ROHS COMPLIANT, PLASTIC, DIP-20
Reach Compliance Code
unknown
compliant
HTS Code
8542.39.00.01
8542.39.00.01
Additional Feature
INVERTED OUTPUTS PORT A TO B
WITH DIRECTION CONTROL
Control Type
COMMON CONTROL
COMMON CONTROL
Count Direction
BIDIRECTIONAL
BIDIRECTIONAL
Family
HC/UH
HC/UH
JESD-30 Code
R-PDIP-T20
R-PDIP-T20
JESD-609 Code
e0
e4
Length
26.075 mm
25.4 mm
Load Capacitance (CL)
50 pF
150 pF
Logic IC Type
BUS TRANSCEIVER
BUS TRANSCEIVER
Max I(ol)
0.006 A
0.0078 A
Number of Bits
8
8
Number of Functions
1
8
Number of Ports
2
2
Number of Terminals
20
20
Operating Temperature-Max
85 °C
85 °C
Operating Temperature-Min
-40 °C
-40 °C
Output Characteristics
3-STATE
3-STATE
Output Polarity
TRUE
TRUE
Package Body Material
PLASTIC/EPOXY
PLASTIC/EPOXY
Package Code
DIP
DIP
Package Equivalence Code
DIP20,.3
DIP20,.3
Package Shape
RECTANGULAR
RECTANGULAR
Package Style
IN-LINE
IN-LINE
Prop. Delay@Nom-Sup
22 ns
22 ns
Propagation Delay (tpd)
116 ns
170 ns
Qualification Status
Not Qualified
Not Qualified
Seated Height-Max
5.08 mm
5.08 mm
Supply Voltage-Max (Vsup)
6 V
6 V
Supply Voltage-Min (Vsup)
2 V
2 V
Supply Voltage-Nom (Vsup)
4.5 V
5 V
Surface Mount
NO
NO
Technology
CMOS
CMOS
Temperature Grade
INDUSTRIAL
INDUSTRIAL
Terminal Finish
TIN LEAD
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form
THROUGH-HOLE
THROUGH-HOLE
Terminal Pitch
2.54 mm
2.54 mm
Terminal Position
DUAL
DUAL
Width
7.62 mm
7.62 mm
Base Number Matches
3
1
Part Package Code
DIP
Pin Count
20
ECCN Code
EAR99
Samacsys Manufacturer
Texas Instruments
Packing Method
TUBE
Power Supply Current-Max (ICC)
0.08 mA
Schmitt Trigger
NO
Compare MM74HC643N with alternatives
Compare SN74HC645N with alternatives