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74F779 Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part No. 74F779
Description  8-Bit Bidirectional Binary Counter with 3-STATE Outputs
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com

74F779 Datasheet(HTML) 1 Page - Fairchild Semiconductor

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© 2000 Fairchild Semiconductor Corporation
April 1988
Revised March 2000
8-Bit Bidirectional Binary Counter with 3-STATE Outputs
General Description
The 74F779 is a fully synchronous 8-stage up/down
counter with multiplexed 3-STATE I/O ports for bus-ori-
ented applications. All control functions (hold, count up,
count down, synchronous load) are controlled by two mode
pins (S0, S1). The device also features carry lookahead for
easy cascading. All state changes are initiated by the rising
edge of the clock.
s Multiplexed 3-STATE I/O ports
s Built-in lookahead carry capability
s Count frequency 100 MHz typ
s Supply current 80 mA typ
s Available in SOIC (300 mil only)
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
Order Number
Package Number
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

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