74AC574 鈥?74ACT574 Octal D-Type Flip-Flop with 3-STATE Outputs
September 1988
Revised November 1999
74AC574 鈥?74ACT574
Octal D-Type Flip-Flop with 3-STATE Outputs
General Description
The AC/ACT574 is a high-speed, low power octal flip-flop
with a buffered common Clock (CP) and a buffered com-
mon Output Enable (OE). The information presented to the
D-type inputs is stored in the flip-flops on the LOW-to-HIGH
Clock (CP) transition.
The AC/ACT574 is functionally identical to the AC/ACT374
except for the pinouts.
Features
s
I
CC
and I
OZ
reduced by 50%
s
Inputs and outputs on opposite sides of package
allowing easy interface with microprocessors
s
Useful as input or output port for microprocessors
s
Functionally identical to AC/ACT374
s
3-STATE outputs for bus-oriented applications
s
Outputs source/sink 24 mA
s
ACT574 has TTL-compatible inputs
Ordering Code:
Order Number
74AC574SC
74AC574SJ
74AC574MTC
74AC574PC
74ACT574SC
74ACT574SJ
74ACT574MTC
74ACT574PC
Package Number
M20B
M20D
MTC20
N20A
M20B
M20D
MTC20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300鈥?Wide Body
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-01
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
Device also available in Tape and Reel. Specify by appending suffix letter 鈥淴鈥?to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
D
0
鈥揇
7
CP
OE
O
0
鈥揙
7
Data Inputs
Clock Pulse Input
3-STATE Output Enable Input
3-STATE Outputs
Description
FACT錚?is a trademark of Fairchild Semiconductor Corporation.
漏 1999 Fairchild Semiconductor Corporation
DS009910
www.fairchildsemi.com