74AC574 Datasheet, PDF (1/9 Pages) STMicroelectronics – OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING

September 1988
Revised November 1999
74AC574 • 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 Package Number
Package Description
74AC574SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body
74AC574SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74AC574MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74AC574PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
74ACT574SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-01
74ACT574SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT574MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ACT574PC
N20A
20-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.
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
Description
D₀–D₇
CP
Data Inputs
Clock Pulse Input
OE
3-STATE Output Enable Input
O₀–O₇
3-STATE Outputs
FACT is a trademark of Fairchild Semiconductor Corporation.
© 1999 Fairchild Semiconductor Corporation DS009910
www.fairchildsemi.com