74AC821 Datasheet, PDF (1/8 Pages) Fairchild Semiconductor – 10-Bit D-Type Flip-Flop with 3-STATE Outputs

November 1988
Revised August 2000
74AC821 • 74ACT821
10-Bit D-Type Flip-Flop with 3-STATE Outputs
General Description
The AC/ACT821 is a 10-bit D-type flip-flop with 3-STATE
outputs arranged in a broadside pinout.
Features
s 3-STATE outputs for bus interfacing
s Noninverting outputs
s Outputs source/sink 24 mA
s TTL compatible inputs
Ordering Code:
Order Number Package Number
Package Description
74AC821SC
M24B
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74AC821SPC
N24C
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
74ACT821SC
M24B
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74ACT821MTC
MTC24
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ACT821SPC
N24C
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. (SPC not available in Tape and Reel.)
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
D₀–D₉
O₀–O₉
OE
CP
Description
Data Inputs
Data Outputs
Output Enable Input
Clock Input
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© 2000 Fairchild Semiconductor Corporation DS010139
www.fairchildsemi.com