DESCRIPTION
The designer has a choice of complementary output (HC352) and 3 state output (HC353). Each of these data (1C0-1C3, 2C0-2C3) is selected by the two address inputs A and B. Separate strobe inputs (1G, 2G) are provided for each of the two four line sections. Taking the strobe input (1G, 2G) high inhibits the outputs. The output of HC352 is fixed at logic low level and the output of HC353 has a high impedance, unconditionally. All inputs are equipped with protection circuits against static discharge and transient excess voltage. NC = No Internal Connection October 1993 1/11 M54/M74HC352/353 TRUTH TABLE SELECT INPUTS BA XX LL LL LH LH HL HL HH HH X: Don’t Care Z: High Impedance C0 X L H X X X X X X LOGIC DIAGRAM HC352 DATA INPUTS C1 C2 XX XX XX LX HX XL XH XX XX STROBE OUTPUT Y C3 G HC352 HC353 XHHZ X L HH XLLL X L HH XLLL X L HH XLLL L L HH HLLL HC353 2/11 M54/M74HC352/353 INPUT AND OUTPUT EQUIVALENT CIRCUIT IEC LOGIC SYMBOL HC352 PIN DESCRIPTION
PIN No 1, 15 6, 5, 4, 3 7 9 10,...
STMicroelectronics
