Note 9: tSKEW
參數(shù)資料
型號: 74VHC161284MTDX
廠商: Fairchild Semiconductor
文件頁數(shù): 7/11頁
文件大小: 0K
描述: TXRX BIDIRECT IEEE 48TSSOP
標準包裝: 1
系列: 74VHC
邏輯類型: IEEE STD 1284 轉換收發(fā)器
電源電壓: 4.5 V ~ 5.5 V
位數(shù): 8
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-BSSOP(0.295",7.50mm 寬)
供應商設備封裝: 48-SSOP
包裝: 標準包裝
其它名稱: 74VHC161284MTDXFSDKR
5
www.fairchildsemi.com
7
4
VH
C16
1284
AC Electrical Characteristics
Note 8: Open Drain
Note 9: tSKEW is measured for common edge output transitions and compares the measured propagation delay for a given path type.
(i) A1–A8 to B1–B8, A9–Y13 to Y9–Y13
(ii) B1–B8 to A1–A8
(iii) C14–C17 to A14–A17
Note 10: This parameter is guaranteed but not tested, characterized only.
Capacitance (Note 11)
Note 11: Capacitance is measured at frequency
1 MHz.
Symbol
Parameter
TA 40qC to 85qC
Units
Figure
Number
VCC 4.5V 5.5V
Min
Max
tPHL
A1–A8 to B1–B8
2.0
30.0
ns
Figure 1
tPLH
A1–A8 to B1–B8
2.0
30.0
ns
Figure 2
tPHL
B1–B8 to A1–A8
2.0
30.0
ns
Figure 3
tPLH
B1–B8 to A1–A8
2.0
30.0
ns
Figure 3
tPHL
A9–A13 to Y9–Y13
2.0
30.0
ns
Figure 1
tPLH
A9–A13 to Y9–Y13
2.0
30.0
ns
Figure 2
tPHL
C14–C17 to A14–A17
2.0
30.0
ns
Figure 3
tPLH
C14–C17 to A14–A17
2.0
30.0
ns
Figure 3
tSKEW
LH-LH or HL-HL
6.0
ns
(Note 9)
tPHL
PLHIN to PLH
2.0
30.0
ns
Figure 1
tPLH
PLHIN to PLH
2.0
30.0
ns
Figure 2
tPHL
HLHIN to HLH
2.0
30.0
ns
Figure 3
tPLH
HLHIN to HLH
2.0
30.0
ns
Figure 3
tPHZ
Output Disable Time
2.0
18.0
ns
Figure 7
tPLZ
DIR to A1–A8
2.0
18.0
tPZH
Output Enable Time
2.0
25.0
ns
Figure 8
tPZL
DIR to A1–A8
2.0
25.0
tPHZ
Output Disable Time
2.0
25.0
ns
Figure 9
tPLZ
DIR to B1–B8
2.0
25.0
tpEN
Output Enable Time
2.0
28.0
ns
Figure 2
HD to B1–B8, Y9–Y13
tpDis
Output Disable Time
2.0
28.0
ns
Figure 2
HD to B1–B8, Y9–Y13
tpEn–tpDis
Output Enable-Output Disable
20.0
ns
tSLEW
Output Slew Rate
tPLH
B1–B8, Y9–Y13
0.05
0.40
V/ns
Figure 5
tPHL
0.05
0.40
Figure 4
tr, tf
tRISE and tFALL
120
ns
Figure 6
B1–B8, Y9–Y13 (Note 8)
120
(Note 10)
Symbol
Parameter
Typ
Units
Conditions
CIN
Input Capacitance
5
pF
VCC 0.0V (HD, DIR, A9—A13, C14—C17, PLHIN and HLHIN)
CI/O
I/O Pin Capacitance
12
pF
VCC 3.3V
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