Philips 74F219A
The 74F219A is a high speed, 64–bit RAM organized as a 16–word by 4–bit array. The outputs are in high impedance state whenever the chip enable (CE) is high. The outputs are active only in the READ mode (WE = high) and the output data is the complement of the stored data.FEATURES
● High speed performance● Replaces 74F219
● Address access time: 8ns max vs 28ns for 74F219
● Power dissipation: 4.3mW/bit typ
● Schottky clamp TTL
● One chip enable
● Non–Inverting outputs (for inverting outputs see 74F189A)
● 3–state outputs
● 74F219A in 150 mil wide SO is preferred options for new designs
● C3F219A in 300 mil wide SOL replaces 74F219 in existing designs
APPLICATIONS
● Scratch pad memory● Buffer memory
● Push down stacks
● Control store PIN CONFIGURATION A0 1 CE 2 WE 3 D0 4 Q0 5 D1 6 16 VCC 15 A1 14 A2 13 A3 12 D3 11 Q3 10 D2 9 Q2
DESCRIPTION
Address inputs are buffered to minimize loading and are fully decoded on chip. Q1 7 GND 8 SF00307 TYPE 74F219A TYPICAL ACCESS TIME 5.0ns TYPICAL SUPPLY CURRENT(TOTAL) 55mA ORDERING INFORMATION ORDER CODEDESCRIPTION
16-pin plastic Dual In-line Package 16-pin plastic Small Outline (150mil) 16-pin plastic Small Outline Large (300mil) COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C N74F219AN N74F219AD C3F219AD DRAWIN...