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M54HC4520 - COUNTER

General Description

The M54/74HC4518/4520 are high speed CMOS DUAL 4 BIT BINARY COUNTERS fabricated in sili2 con gate C MOS technology.

They have the same high speed performance of LSTTL combined with true CMOS low power consumption.

They consists of two identical internally synchronous 4-stage counters.

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Other Datasheets by STMicroelectronics

Part Number Description
M54HC4511 BCD TO 7 SEGMENT LATCH/DECODER DRIVER
M54HC4518 HC4518 DUAL DECADE COUNTER HC4520 DUAL 4 BIT BINARY COUNTER
M54HC4538 DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
M54HC4543 BCD TO 7 SEGMENT LATCH/DECODER/LCD DRIVER
M54HC4002 DUAL 4 INPUT NOR GATE

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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M54/M74HC4518 M54/M74HC4520 HC4518 DUAL DECADE COUNTER HC4520 DUAL 4 BIT BINARY COUNTER . . . . . . . . HIGH SPEED fMAX = 55 MHz (TYP.) at VCC = 5 V LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 4 mA (MIN.) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V PIN AND FUNCTION COMPATIBLE WITH 4520B/4518B B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HCXXXXF1R M74HCXXXXM1R M74HCXXXXB1R M74HCXXXXC1R PIN CONNECTIONS (top view) DESCRIPTION The M54/74HC4518/4520 are high speed CMOS DUAL 4 BIT BINARY COUNTERS fabricated in sili2 con gate C MOS technology.