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74ACT161 Datasheet (PDF) - STMicroelectronics

74ACT161 Datasheet PDF - STMicroelectronics
Part # 74ACT161
Download  74ACT161 Download

File Size   97.29 Kbytes
Page   11 Pages
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

74ACT161 Datasheet (PDF)

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74ACT161 Datasheet PDF - STMicroelectronics

Part # 74ACT161
Download  74ACT161 Click to download

File Size   97.29 Kbytes
Page   11 Pages
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

74ACT161 Datasheet (HTML) - STMicroelectronics

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74ACT161 Product details

DESCRIPTION
The 74ACT161 is an advanced high-speed CMOS SYNCRONOUS PRESETTABLE COUNTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS tecnology. It is a 4 bit binary counter with Asynchronous Clear.
The circuit have four fundamental modes of operation, in order of preference: synchronous reset, parallel load, count-up and hold. Four control inputs, (CLEAR), (LOAD), (PE) and (TE), determine the mode of operation as shown in the Truth Table. A LOW signal on CLEAR overrides counting and parallel loading and sets all outputs on LOW state. A LOW signal on LOAD overrides counting and allows information on Parallel Data inputs to be loaded into the flip-flop on the next rising edge of CLOCK. With LOAD and CLEAR HIGH, PE and TE permit counting when both are HIGH. Conversely, a LOW signal on either PE and TE inhibits counting.
The CARRY OUTPUT is HIGH when TE is HIGH and counter is in state 15.
The device is designed to interface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels.
All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

■ HIGH SPEED:
   fMAX = 290MHz (TYP.) at VCC = 5V
■ LOW POWER DISSIPATION:
   ICC = 8µA(MAX.) at TA=25°C
■ COMPATIBLE WITH TTL OUTPUTS
   VIH = 2V (MIN.), VIL = 0.8V (MAX.)
■ 50Ω TRANSMISSION LINE DRIVING CAPABILITY
■ SYMMETRICAL OUTPUT IMPEDANCE:
   |IOH| = IOL = 24mA (MIN)
■ BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL
■ OPERATING VOLTAGE RANGE:
   VCC (OPR) = 4.5V to 5.5V
■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 161
■ IMPROVED LATCH-UP IMMUNITY




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About STMicroelectronics


STMicroelectronics is a multinational electronics and semiconductor manufacturer based in Geneva, Switzerland.

The company offers a wide range of products including microcontrollers, sensors, power amplifiers, and integrated circuits for various applications in the automotive, industrial, and consumer markets.

Founded in 1987, STMicroelectronics has operations in over 100 countries and is one of the largest semiconductor companies in the world.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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