参数资料
型号: SN74HC161PWRE4
厂商: TEXAS INSTRUMENTS INC
元件分类: 计数器
英文描述: HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
封装: GREEN, PLASTIC, TSSOP-16
文件页数: 2/27页
文件大小: 886K
代理商: SN74HC161PWRE4
SN54HC161, SN74HC161
4BIT SYNCHRONOUS BINARY COUNTERS
SCLS297D JANUARY 1996 REVISED SEPTEMBER 2003
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
n-bit synchronous counters
This application demonstrates how the look-ahead carry circuit can be used to implement a high-speed n-bit
counter. The ’HC161 devices count in binary. Virtually any count mode (modulo-N, N1-to-N2, N1-to-maximum)
can be used with this fast look-ahead circuit.
The application circuit shown in Figure 2 is not valid for clock frequencies above 18 MHz (at 25
°C and
4.5-V VCC). The reason for this is that there is a glitch that is produced on the second stage’s RCO and every
succeeding stage’s RCO. This glitch is common to all HC vendors that Texas Instruments has evaluated, in
addition to the bipolar equivalents (LS, ALS, AS).
相关PDF资料
PDF描述
SN74HC161DG4 HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
SN74HC161DRG4 HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
SNJ54HC174FK HC/UH SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, CQCC20
SN74HC174PW HC/UH SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDSO16
SNJ54HC21J HC/UH SERIES, DUAL 4-INPUT AND GATE, CDIP14
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