74HC/HCT190 Philips Semiconductors (Acquired by NXP), 74HC/HCT190 Datasheet - Page 7

• Manufacturer Part Number: 74HC/HCT190
• Description: Presettable Synchronous BCD Decade Up/down Counter
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
December 1990
Presettable synchronous BCD decade
up/down counter
Sequence
Load (present) to BCD seven;
count up to eight, nine, zero,
inhibit;
count down to one, zero, nine,
one and two;
eight and seven.
Fig.8 Typical load, count and inhibit sequence.
Fig.9 Logic diagram.
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74HC/HCT190
Product specification