74HC7541 Datasheet | Philips Semiconductors

FEATURES - Non-inverting outputs - Schmitt trigger action on all data inputs - Output capability: bus driver - ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT7541 are high-speed Si-gate CMOS devices and are pin patible with low power Schottky TTL (LSTTL). They are specified in pliance with JEDEC standard no. 7A. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns 74HC/HCT7541 The 74HC/HCT7541 are octal Schmitt trigger non-inverting buffer/line drivers with 3-state outputs. The 3-state outputs are controlled by the output enable inputs OE1 and OE2. A HIGH on OEn causes the outputs to assume a high impedance OFF-state. The Schmitt trigger action in the data inputs transforms slowly changing input signals into sharply defined jitter-free output signals. The “7541” is identical to the “541” but has hysteresis on the data inputs. TYPICAL SYMBOL t PHL/ t PLH CI CPD Notes 1. CPD is used to determine the dynamic power dissipation (PD in µW): PD = CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where: fi = input frequency in MHz fo = output frequency in MHz ∑ (CL × VCC2 × fo) = sum of outputs CL = output load capacitance in p F VCC = supply voltage in V 2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC - 1.5 V ORDERING INFORMATION See “74HC/HCT/HCU/HCMOS Logic Package Information”. PARAMETER propagation delay An to Yn input capacitance power dissipation capacitance per buffer notes 1 and 2 CONDITIONS HC CL = 15 p F; VCC = 5 V 10 3.5 30 HCT 16 3.5 32 ns p F p F UNIT December 1990 Philips Semiconductors Product specification Octal Schmitt trigger buffer/line driver; 3-state PIN DESCRIPTION PIN NO. 1, 19 2, 3, 4, 5, 6, 7, 8, 9 10 18, 17, 16, 15, 14, 13, 12, 11 20 SYMBOL OE1, OE2 A0 to A7 GND Y0 to Y7 VCC NAME AND FUNCTION 74HC/HCT7541 output enable inputs (active LOW) data inputs ground (0 V) bus outputs positive supply voltage Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol. December 1990 Philips...