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74ACT841

Fairchild Semiconductor
Part Number 74ACT841
Manufacturer Fairchild Semiconductor
Description 10-Bit Transparent Latch
Published Apr 3, 2005
Detailed Description 74ACT841 10-Bit Transparent Latch with 3-STATE Outputs November 1988 Revised September 2000 74ACT841 10-Bit Transparen...
Datasheet PDF File 74ACT841 PDF File

74ACT841
74ACT841

Overview
74ACT841 10-Bit Transparent Latch with 3-STATE Outputs November 1988 Revised September 2000 74ACT841 10-Bit Transparent Latch with 3-STATE Outputs General Description The ACT841 bus interface latch is designed to eliminate the extra packages required to buffer existing latches and provide extra data width for wider address/data paths or buses carrying parity.
The ACT841 is a 10-bit transparent latch, a 10-bit version of the ACT373.
Features s ACT841 has TTL-compatible inputs s Outputs source/sink 24 mA s Non-inverting 3-STATE outputs Ordering Code: Order Number 74ACT841SC 74ACT841MTC 74ACT841SPC Package Number M24B MTC24 N24C Package Description 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 LE Description Data Inputs 3-STATE Outputs Output Enable Latch Enable FACT is a trademark of Fairchild Semiconductor Corporation.
© 2000 Fairchild Semiconductor Corporation DS010156 www.
fairchildsemi.
com 74ACT841 Functional Description The ACT841 consists of ten D-type latches with 3-STATE outputs.
The flip-flops appear transparent to the data when Latch Enable (LE) is HIGH.
This allows asynchronous operation, as the output transition follows the data in transition.
On the LE HIGH-to-LOW transition, the data that meets the setup and hold time is latched.
Data appears on the bus when the Output Enable (OE) is LOW.
When OE is HIGH the bus output is in the high impedance state.
Function Table Inputs OE X H H H L L L H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance NC = No Change Internal D X L H X L H X Q X L H NC L H NC Output Function O Z Z Z ...


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