M74HC590 8 Bit Binary Counter Register (3-State)

The M74HC590 is an high speed CMOS 8-BIT BINARY COUNTER REGISTER (3 STATE) fabricated with silicon gate C2MOS technology.

This device contains an 8-bit binary counter that feeds an 8-bit storage register. The storage register has parallel outputs. Separate clocks are provided for both the binary counter and storage register. The binary counter features a direct clear input CCLR and a count enable input CCKEN. For cascading, a ripple carry output RCO is provided.

Expansion is easily accomplished by tying RCO of the first stage to CCKEN of the second stage, etc.

Both the counter and register clocks are positive edge triggered. If the user wishes to connect both clocks together, the counter state will always be one count ahead of the register. Internal circuitry prevents clocking from the clock enable. All inputs are equipped with protection circuits against static discharge and transient excess voltage.

技术特性

HIGH SPEED: fMAX = 61 MHz (TYP.) at VCC = 6V
LOW POWER DISSIPATION: Icc = 4μA(MAX.) at TA=25°C
HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.)
SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 6mA (MIN) for QA ∼ QH OUTPUT |IOH| = IOL = 4mA (MIN) for RCO OUTPUT
BALANCED PROPAGATION DELAYS: tPLH tPHL
WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V
PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 590

M74HC590 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
M74HC590TTR	Active		1000	TSSOP 16	Tape And Reel		M74HC590TTR
M74HC590RM13TR	Active		1000	SO-16	Tape And Reel		M74HC590RM13TR
M74HC590B1R	Active		1000	PDIP 16	Tube		M74HC590B1R

DATASHEET

描述	版本	大小
M74HC590 : 8 binary counter register with 3 state output	1	1021KB