MC74HC390A: Dual 4-Stage Binary Ripple Counter with ÷2 and ÷5 Sections

Datasheet: Dual 4-Stage Binary Ripple Counter with Divide-By-2 and Divide-By-5 Sections
Rev. 7 (121kB)
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High-Performance Silicon-Gate CMOS

The MC74HC390A is identical in pinout to the LS390. The device inputs are compatible with standard CMOS outputs; with pullup resistors,they are compatible with LSTTL outputs.

This device consists of two independent 4-bit counters, each composed of a divide-by-two and a divide-by-five section. The divide-by-two and divide-by-five counters have separate clock inputs, and can be cascaded to implement various combinations of divide-by-2 and/or divide-by-5 up to a divide-by-100 counter.

Flip-flops internal to the counters are triggered by high-to-low transitions of the clock input. A separate, asynchronous reset is provided for each 4-bitcounter. State changes of the Q outputs do not occur simultaneously because of internal ripple delays. Therefore, decoded output signals are subject to decoding spikes and should not be used as clocks or strobes except when gated with the Clock of the HC390A.
Features
 
  • Output Drive Capability: 10 LSTTL Loads
  • Outputs Directly Interface to CMOS, NMOS, and TTL
  • Operating Voltage Range: 2 to 6 V
  • Low Input Current: 1 mA
  • High Noise Immunity Characteristic of CMOS Devices
  • In Compliance with the Requirements Defined by JEDEC Standard No 7A
  • Chip Complexity: 244 FETs or 61 Equivalent Gates
  • Pb-Free Packages are Available*
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (3)
Availability & Samples
Specifications
Case Outlines
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
MC74HC390ADG Active
Pb-free
Halide free
MC74HC390A SOIC-16 751B-05 1 260 Tube 48 $0.3012
MC74HC390ADR2G Active
Pb-free
Halide free
MC74HC390A SOIC-16 751B-05 1 260 Tape and Reel 2500 $0.3284
MC74HC390ADTR2G Active
Pb-free
Halide free
MC74HC390A TSSOP-16 948F-01 1 260 Tape and Reel 2500 $0.2197
NLV74HC390ADR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
MC74HC390A SOIC-20W 751D-05 1 260 Tape and Reel 2500 $0.1573
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : <1K
ON Semiconductor   (2020-09-02 00:00) : 14,976
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 20,000
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Type
VCC Min (V)
VCC Max (V)
tpd Max (ns)
PD Max (W)
IO Max (mA)
Package Type
MC74HC390ADG  
 $0.3012 
Pb
H
 Active   
Counter
2
6
58
0.75
5.2
SOIC-16
MC74HC390ADR2G  
 $0.3284 
Pb
H
 Active   
Counter
2
6
58
0.75
5.2
SOIC-16
MC74HC390ADTR2G  
 $0.2197 
Pb
H
 Active   
Counter
2
6
58
0.75
5.2
TSSOP-16
NLV74HC390ADR2G  
 $0.1573 
Pb
A
H
P
 Active   
Counter
2
6
58
0.75
5.2
SOIC-20W
Case Outlines
751B-05    751D-05    948F-01   
Packages
MC74HC390A: Dual 4-Stage Binary Ripple Counter with ÷2 and ÷5 Sections
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