Product Summary

The SN54LS244J is a octal buffers and line drivers. It is designed specifically to improve both the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The designer has a choice of selected combinations of inverting and noninverting outputs, symmetrical, active-low output-control (G) inputs, and complementary output-control (G and G) inputs. The SN54LS244J feature high fan-out, improved fan-in, and 400-mV noise margin. The SN54LS244J can be used to drive terminated lines down to 133 Ω.

Parametrics

SN54LS244J absolute maximum ratings: (1)Supply voltage, VCC (see Note 1): 7 V; (2)Input voltage, VI: LS: 7 V; (3)Input voltage, VI: S: 5.5 V; (4)Off-state output voltage: 5.5 V; (5)Package thermal impedance, θJA (see Note 2): DB package: 70°C/W; (6)Package thermal impedance, θJA (see Note 2): DW package: 58°C/W; (7)Package thermal impedance, θJA (see Note 2): N package: 69°C/W; (8)Package thermal impedance, θJA (see Note 2): NS package: 60°C/W; (9)Storage temperature range, Tstg: –65°C to 150°C.

Features

SN54LS244J features: (1)3-state outputs drive bus lines or buffer memory address registers; (2)PNP inputs reduce DC loading; (3)Hysteresis at inputs improves noise margins.

Diagrams

SN54LS244J pin connection