參數(shù)資料
型號: MC14520B
廠商: Motorola, Inc.
元件分類: 通用總線功能
英文描述: DUAL UP COUNTERS
中文描述: 雙柜位
文件頁數(shù): 3/7頁
文件大?。?/td> 203K
代理商: MC14520B
MOTOROLA CMOS LOGIC DATA
411
MC14518B MC14520B
Characteristic
Symbol
VDD
Unit
Min
Typ #
Max
Output Rise and Fall Time
tTLH, tTHL = (1.5 ns/pF) CL + 25 ns
tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns
tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns
Propagation Delay Time
Clock to Q/Enable to Q
tPLH, tPHL = (1.7 ns/pF) CL + 215 ns
tPLH, tPHL = (0.66 ns/pF) CL + 97 ns
tPLH, tPHL = (0.5 ns/pF) CL + 75 ns
tTLH,
tTHL
5.0
10
15
100
50
40
200
100
80
ns
tPLH,
tPHL
5.0
10
15
280
115
80
560
230
160
ns
Reset to Q
tPHL = (1.7 ns/pF) CL + 265 ns
tPHL = (0.66 ns/pF) CL + 117 ns
tPHL = (0.66 ns/pF) CL + 95 ns
Clock Pulse Width
tPHL
5.0
10
15
330
130
90
650
230
170
ns
tw(H)
tw(L)
5.0
10
15
200
100
70
100
50
35
ns
Clock Pulse Frequency
fcl
5.0
10
15
2.5
6.0
8.0
1.5
3.0
4.0
MHz
Clock or Enable Rise and Fall Time
tTHL, tTLH
5.0
10
15
15
5
4
μ
s
Enable Pulse Width
tWH(E)
5.0
10
15
440
200
140
220
100
70
ns
Reset Pulse Width
tWH(R)
5.0
10
15
280
120
90
125
55
40
ns
Reset Removal Time
trem
5.0
10
15
– 5
15
20
– 45
– 15
– 5
ns
* The formulas given are for the typical characteristics only at 25 C.
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
Figure 1. Power Dissipation Test Circuit and Waveform
PULSE
GENERATOR
VARIABLE
WIDTH
CL
CL
CL
CL
VDD
VSS
VSS
500
μ
F
0.01
μ
F
CERAMIC
20 ns
50%
10%
90%
20 ns
ID
Q3
Q2
Q1
Q0
C
E
R
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MC14520BDWG 功能描述:計數(shù)器移位寄存器 3-18V Dual BCD Up RoHS:否 制造商:Texas Instruments 計數(shù)器類型: 計數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel