D 2-V to 6-V VCC Operation D High-Current 3-State Parallel Register Outputs Can Drive Up To 15 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D Typical tpd = 14 ns SN54HC590A .
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J OR W PACKAGE SN74HC590A .
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D, DW, OR N PACKAGE (TOP VIEW) QB 1 QC 2 QD 3 QE 4 QF 5 QG 6 QH 7 GND 8 16 VCC 15 QA 14 OE 13 RCLK 12 CCKEN 11 CCLK 10 CCLR 9 RCO SN54HC590A, SN74HC590A 8ĆBIT BINARY COUNTERS WITH 3ĆSTATE OUTPUT REGISTERS SCLS039F DECEMBER 1982 REVISED SEPTEMBER 2003 D ±6-mA O
