74AC299

74AC299 74ACT299 8-Input Universal Shift/Storage Register July 1988 Revised November 1999 74AC299 74ACT299 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins General Description The AC/ACT299 is an 8-bit universal shift/storage register with 3-STATE outputs. Four modes of operation are possible: hold (store), shift left, shift right and load data. The parallel load inputs and flip-flop outputs are multiplexed to reduce the total number of package pins. Additional outputs are provided for flip-flops Q0, Q7 to allow easy serial cascading. A separate active LOW Master Reset is used to reset the register. Features s ICC and IOZ reduced by 50% s Common parallel I/O for reduced pin count s Additional serial inputs and outputs for expansion s Four operating modes: shift left, shift right, load and store s 3-STATE outputs for bus-oriented applications s Outputs source/sink 24 mA s ACT299 has TTL-compatible inputs Ordering Code: Order Number 74AC299SC 74AC299SJ 74AC299MTC 74AC299PC 74ACT299SC 74ACT299MTC 74ACT299PC Package Number M20B M20D MTC20 N20A M20B MTC20 N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide www.DataSheet4U.com 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” Wide 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300...