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74ACT821

Fairchild Semiconductor
Part Number 74ACT821
Manufacturer Fairchild Semiconductor
Description 10-Bit D-Type Flip-Flop
Published Apr 3, 2005
Detailed Description 74AC821 • 74ACT821 10-Bit D-Type Flip-Flop with 3-STATE Outputs November 1988 Revised August 2000 74AC821 • 74ACT821 1...
Datasheet PDF File 74ACT821 PDF File

74ACT821
74ACT821

Overview
74AC821 • 74ACT821 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 74AC821SC 74AC821SPC 74ACT821SC 74ACT821MTC 74ACT821SPC Package Number M24B N24C M24B MTC24 N24C Package Description 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.
300 Wide 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.
300 Wide 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.
300 Wide 24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.
4mm Wide 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 FACT is a trademark of Fairchild Semiconductor Corporation.
© 2000 Fairchild Semiconductor Corporation DS010139 www.
fairchildsemi.
com 74AC821 • 74ACT821 Functional Description The AC/ACT821 consists of ten D-type edge-triggered flipflops.
The buffered Clock (CP) and buffered Output Enable (OE) are common to all flip-flops.
The flip-flops will store the state of their individual D inputs that meet the setup and hold time requirements on the LOW-to-HIGH CP transition.
With OE LOW the contents of the flip-flops are available at the outputs.
When OE is HIGH the outputs go to the high impedance state.
Operation of the OE input does not affect the state of the flip-flops.
Function Table Inputs OE H H L L H = HIGH Voltage Level L = LOW Voltage Level Z = HIGH Impedance = LOW...


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