參數(shù)資料
型號(hào): MC74HC161AD
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: PRESETTABLE COUNTERS HIGH-PERFORMANCE SILICON-GATE CMOS
中文描述: HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16
封裝: 0.150 INCH, PLASTIC, SOIC-16
文件頁數(shù): 11/16頁
文件大?。?/td> 284K
代理商: MC74HC161AD
MC74HC161A, MC74HC163A
http://onsemi.com
11
INPUTS
OUTPUTS
TO
MORE
SIGNIFICANT
STAGES
LOAD
H = COUNT
L = DISABLE
H = COUNT
L = DISABLE
RESET
CLOCK
LOAD
P0 P1 P2 P3
ENABLE P
ENABLE T
CLOCK
R
Q0 Q1 Q2 Q3
RIPPLE
CARRY
OUT
LOAD
RESET
CLOCK
ENABLE P
ENABLE T
TYPICAL APPLICATIONS CASCADING
NOTE: When used in these cascaded configurations the clock fmax guaranteed limits may not apply. Actual performance will depend on
number of stages. This limitation is due to set up times between Enable (Port) and Clock.
LOAD
P0 P1 P2 P3
ENABLE P
ENABLE T
CLOCK
R
Q0 Q1 Q2 Q3
RIPPLE
CARRY
OUT
LOAD
P0 P1 P2 P3
ENABLE P
ENABLE T
CLOCK
R
Q0 Q1 Q2 Q3
RIPPLE
CARRY
OUT
INPUTS
OUTPUTS
INPUTS
OUTPUTS
INPUTS
INPUTS
INPUTS
OUTPUTS
OUTPUTS
OUTPUTS
TO
MORE
SIGNIFICANT
STAGES
LOAD
P0 P1 P2 P3
ENABLE P
ENABLE T
CLOCK
R
Q0 Q1 Q2 Q3
RIPPLE
CARRY
OUT
LOAD
P0 P1 P2 P3
ENABLE P
ENABLE T
CLOCK
R
Q0 Q1 Q2 Q3
RIPPLE
CARRY
OUT
LOAD
P0 P1 P2 P3
ENABLE P
ENABLE T
CLOCK
R
Q0 Q1 Q2 Q3
RIPPLE
CARRY
OUT
Figure 11. N–Bit Synchronous Counters
Figure 12. Nibble Ripple Counter
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