XBLW 74HC/HCT160 SYNCHRONOUS 4-BIT COUNTERS

PublishTime：2023-11-02

●The SN74HC/HCT160 is a synchronous presettable decade counter with an internal look-ahead carry. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive-going edge of the clock (CP). The outputs (Q0 to Q3) of the counters may be preset HIGH or LOW. A LOW at the parallel enable input (PE) disables the counting action and causes the data at the data inputs (D0 to D3) to be loaded into the counter on the positive-going edge of the clock. Preset takes place regardless of the levels at count enable inputs (CEP and CET). A LOW at the master reset input (MR) sets Q0 to Q3 LOW regardless of the levels at input pins CP, PE, CET and CEP (thus providing an asynchronous clear function). The look-ahead carry simplifies serial cascading of the counters. Both CEP and CET must be HIGH to count. The CET input is fed forward to enable the terminal count output (TC). The TC output thus enabled will produce a HIGH output pulse of a duration approximately equal to a HIGH output of Q0. This pulse can be used to enable the next cascaded stage. The maximum clock frequency for the cascaded counters is determined by the CP to TC propagation delay and CEP to CP set-up time, according to the following formula: fmax=1/(tP(max)(CP to TC)+tSU(CEP to CP))
●Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
●Features
■Input levels:
▲For SN74HC160: CMOS level
▲For SNSN74HCT160: TTL level
■Synchronous counting and loading
■2 count enable inputs for n-bit cascading
■Asynchronous reset
■Positive-edge triggered clock
■Specified from -40°C to +105°C
■Packaging information: DIP16/SOP16/TSSOP16

Brand of Product：	XBLW
Part#：	XBLW 74HC 、 XBLW 74HCT160 、 SN74HC 、 SN74HCT160 、 SN74HC160N 、 SN74HC160DTR 、 SN74HCT160DTR 、 SN74HCT160TDTR More Part#
Product Category：	SYNCHRONOUS 4-BIT COUNTERS 、 synchronous presettable decade counter More
Application：	More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	DIP16;SOP16;TSSOP16;DIP-16;SOP-16;TSSOP-16
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2023/5/15
Version Number：	version 1.0
Data Encoding：
Data Size：	2.2 MB

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