參數(shù)資料
型號(hào): MC14040BD
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: ExpressCard Single Power Interface Switch 20-QFN
中文描述: 4000/14000/40000 SERIES, ASYN NEGATIVE EDGE TRIGGERED 12-BIT UP BINARY COUNTER, PDSO16
封裝: PLASTIC, SOIC-16
文件頁數(shù): 3/6頁
文件大?。?/td> 220K
代理商: MC14040BD
MOTOROLA CMOS LOGIC DATA
MC14040B
152
Characteristic
Output Rise and Fall Time
TTLH, TTHL = (1.5 ns/pF) CL + 25 ns
Propagation Delay Time
tPHL, tPLH = (0.66 ns/pF) CL + 137 ns
Symbol
tTHL
5.0
15
Min
Typ #
100
40
Max
200
80
Unit
ns
tPLH,
tPHL, tPLH = (0.66 ns/pF) CL + 867 ns
tPHL = (1.7 ns/pF) CL + 485 ns
Clock Pulse Width
10
115
230
10
720
1440
5.0
5.0
10
385
150
370
140
55
740
ns
10
7.0
3.5
15
Reset Pulse Width
tWH
5.0
15
960
270
80
ns
Reset Removal Time
5.0
10
130
50
320
65
25
ns
#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
Figure 2. Switching Time Test Circuit
and Waveforms
PULSE
GENERATOR
PULSE
GENERATOR
500
μ
F
0.01
μ
F
CERAMIC
VDD
VSS
CL
CL
CL
ID
Q1
Q2
Qn
C
R
20 ns
20 ns
VDD
VSS
90%
50%
10%
CLOCK
50% DUTY CYCLE
VDD
VSS
CL
CL
CL
Q1
Q2
Qn
C
R
20 ns
20 ns
CLOCK
90%
50%
10%
tWH
tPHL
tPLH
Q
90%
50%
10%
tTLH
tTHL
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