參數(shù)資料
型號: MC54-74HC390
廠商: ON SEMICONDUCTOR
元件分類: 通用總線功能
英文描述: Dual 4-Stage Binary Ripple Counter with ±2 and ±5 Sections
中文描述: 雙4位的二進制紋波計數(shù)器± 2和± 5節(jié)
文件頁數(shù): 4/7頁
文件大?。?/td> 200K
代理商: MC54-74HC390
MC54/74HC175
MOTOROLA
High–Speed CMOS Logic Data
DL129 — Rev 6
4
SWITCHING WAVEFORMS
Figure 1.
Figure 2.
50%
50%
50%
50%
VCC
VCC
GND
GND
RESET
Q
Q
CLOCK
tPLH
tPHL
50%
DATA
CLOCK
VCC
VCC
GND
Figure 3.
GND
* Includes all probe and jig capacitance
CL*
TEST POINT
DEVICE
UNDER
TEST
OUTPUT
Figure 4.
1/fmax
CLOCK
Q or Q
tf
tr
VCC
GND
90%
50%
10%
90%
50%
10%
tPLH
tPHL
tTLH
tTHL
tw
tw
trec
VALID
th
tsu
TEST CIRCUIT
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