參數(shù)資料
型號(hào)： 933727300652
廠商： NXP SEMICONDUCTORS
元件分類： 總線收發(fā)器
英文描述： 4000/14000/40000 SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, CDIP20
封裝： CERAMIC, DIP-20
文件頁數(shù)： 5/6頁
文件大?。?/td> 80K
代理商： 933727300652
January 1995
5
Philips Semiconductors
Product specication
Octal bus transceiver with 3-state outputs
HEF40245B
buffers
AC CHARACTERISTICS
VSS = 0 V; Tamb =25 °C; CL = 50 pF; input transition times ≤ 20 ns
VDD
V
SYMBOL
MIN.
TYP.
MAX.
TYPICAL EXTRAPOLATION
FORMULA
Propagation delays
An → Bn
5
95
190
ns
83 ns
+ (0,24 ns/pF) CL
HIGH to LOW
10
tPHL
40
80
ns
35 ns
+ (0,10 ns/pF) CL
15
30
60
ns
26 ns
+ (0,07 ns/pF) CL
An → Bn
5
85
170
ns
82 ns
+ (0,06 ns/pF) CL
LOW to HIGH
10
tPLH
40
80
ns
38 ns
+ (0,03 ns/pF) CL
15
30
60
ns
29 ns
+ (0,02 ns/pF) CL
Output transition
5
40
80
ns
see Fig.6
times
10
tTHL
20
40
ns
HIGH to LOW
15
30
ns
530
60
ns
LOW to HIGH
10
tTLH
20
40
ns
15
30
ns
3-state propagation delays
Output disable times
EO
→ An,Bn
5
100
200
ns
HIGH
10
tPHZ
50
100
ns
15
40
80
ns
5
100
200
ns
LOW
10
tPLZ
60
120
ns
15
50
100
ns
Output enable times
EO
→ An,Bn
5
100
200
ns
HIGH
10
tPZH
45
90
ns
15
35
70
ns
5
115
230
ns
LOW
10
tPZL
55
110
ns
15
45
90
ns
ALL BUFFERS
SWITCHING
VDD
V
TYPICAL FORMULA FOR P (
W)
Dynamic power
5
4 250 fi +∑ (foCL) × VDD2
where
dissipation per
10
17 000 fi +∑ (foCL) × VDD2
fi = input freq. (MHz)
package (P)
15
46 000 fi +∑ (foCL) × VDD2
fo = output freq. (MHz)
CL = load capacitance (pF)
∑ (f
oCL) = sum of outputs
VDD = supply voltage (V)
相關(guān)PDF資料
PDF描述
933638690652 4000/14000/40000 SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20
933567190652 4000/14000/40000 SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20
933640900215 50 mA, 250 V, PNP, Si, SMALL SIGNAL TRANSISTOR
933665130215 50 mA, 300 V, PNP, Si, SMALL SIGNAL TRANSISTOR
933665130235 50 mA, 300 V, PNP, Si, SMALL SIGNAL TRANSISTOR
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