參數(shù)資料
型號: SN74LVTH646DB
廠商: Texas Instruments, Inc.
英文描述: 3.3-V ABT OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
中文描述: 的3.3V ABT生根粉八路總線收發(fā)器和3冊態(tài)輸出
文件頁數(shù): 8/10頁
文件大?。?/td> 137K
代理商: SN74LVTH646DB
SN54LVTH646, SN74LVTH646
3.3-V ABT OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCBS705E – AUGUST 1997 – REVISED APRIL 1999
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted) (see Figure 2)
SN54LVTH646
VCC = 3.3 V
±
0.3 V
SN74LVTH646
VCC = 3.3 V
±
0.3 V
VCC = 2.7 V
VCC = 2.7 V
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
fclock
tw
Clock frequency
150
150
150
150
MHz
Pulse duration, CLK high or low
3.3
3.3
3.3
3.3
ns
tsu
Setup time,
A or B before CLKAB
or CLKBA
Data high
1.3
1.6
1.2
1.5
ns
Data low
1.9
2.6
1.6
2.2
th
Hold time, A or B after CLKAB
or CLKBA
1.2
1.2
0.8
0.8
ns
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 2)
SN54LVTH646
VCC = 3.3 V
±
0.3 V
SN74LVTH646
VCC = 3.3 V
±
0.3 V
TYP
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 2.7 V
VCC = 2.7 V
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
fmax
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPZH
tPZL
tPHZ
tPLZ
150
150
150
150
MHz
CLKBA or
CLKAB
A or B
1
5.3
5.9
1.8
3.1
4.7
5.6
ns
1.5
5
5.9
1.8
3.1
4.7
5.6
A or B
B or A
1
4.9
5.6
1.3
2.3
3.5
4.1
ns
1.2
4.8
5
1.3
2.4
3.5
4.1
SBA or SAB
A or B
1
5.3
6.3
1.5
3
4.9
6
ns
1.3
5.3
6.3
1.5
3.3
4.9
6
OE
A or B
1
5.4
6.7
1.1
3.1
5.2
6.5
ns
1
5.6
6.7
1.1
3.4
5.2
6.5
OE
A or B
1.7
6.3
6.5
2.3
3.9
5.5
6.1
ns
2.2
6.3
6.5
2.3
4
5.5
5.9
DIR
A or B
1.2
5.6
6.8
1.3
3.4
5.2
6.6
ns
1.2
6.7
6.8
1.3
3.6
5.2
6.6
DIR
A or B
1.1
1.4
7.2
6.1
8.1
6.6
1.5
1.5
3.2
3.8
5.6
5.6
6.7
6.3
ns
All typical values are at VCC = 3.3 V, TA = 25
°
C.
These parameters are measured with the internal output state of the storage register opposite that of the bus input.
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SN74LVTH646DGVR 功能描述:總線收發(fā)器 Tri-St ABT Octal Bus RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
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