器件名称:
MC74ACT574
功能描述:
OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS
文件大小:
192.18KB 共8页
简 介:
MC74AC57 MC74ACT574 Octal DType FlipFlop with 3State Outputs The MC74AC574/74ACT574 is a high-speed, low power octal flip-flop with a buffered common Clock (CP) and a buffered common Output Enable (OE). The information presented to the D inputs is stored in the flip-flops on the LOW-to-HIGH Clock (CP) transition. The MC74AC574/74ACT574 is functionally identical to the MC74AC374/ 74ACT374 except for the pinouts. Inputs and Outputs on Opposite Sides of Package Allowing Easy Interface with Microprocessors Useful as Input or Output Port for Microprocessors Functionally Identical to MC74AC374/74ACT374 3-State Outputs for Bus-Oriented Applications Outputs Source/Sink 24 mA ′ACT574 Has TTL Compatible Inputs VCC 20 O0 19 O1 18 O2 17 O3 16 O4 15 O5 14 O6 13 O7 12 CP 11 OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS N SUFFIX CASE 738-03 PLASTIC DW SUFFIX CASE 751D-04 PLASTIC 1 OE 2 D0 3 D1 4 D2 5 D3 6 D4 7 D5 8 D6 9 D7 10 GND LOGIC SYMBOL PIN NAMES D0–D7 CP OE O0–O7 Data Inputs Clock Pulse Input 3-State Output Enable Input 3-State Outputs D0 D1 D2 D3 D4 D5 D6 D7 CP OE O0 O1 O2 O3 O4 O5 O6 O7 FACT DATA 5-1 MC74AC57 MC74ACT574 FUNCTIONAL DESCRIPTION The MC74AC574/74ACT574 consists of eight edgetriggered flip-flops with individual D-type inputs and 3-state true outputs. The buffered clock and buffered Output Enable are common to all flip-flops. The eight flip-flops will store the state of their individual D inputs that meet the setup and hold time requirements on the LOW-to-HIGH……
