參數(shù)資料
型號： SN74ABT646DBR
廠商： TEXAS INSTRUMENTS INC
元件分類： 總線收發(fā)器
英文描述： ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
封裝： GREEN, PLASTIC, SSOP-24
文件頁數(shù)： 15/18頁
文件大?。?/td> 539K
代理商： SN74ABT646DBR
SN54ABT646, SN74ABT646
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCBS068E – JULY 1991 – REVISED JULY 1994
2–6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25°C
SN54ABT646
SN74ABT646
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
VIK
VCC = 4.5 V,
II = –18 mA
–1.2
V
VCC = 4.5 V,
IOH = – 3 mA
2.5
VOH
VCC = 5 V,
IOH = – 3 mA
3
V
VOH
VCC =4 5V
IOH = – 24 mA
2
V
VCC = 4.5 V
IOH = – 32 mA
2*
2
VOL
VCC =4 5V
IOL = 48 mA
0.55
V
VOL
VCC = 4.5 V
IOL = 64 mA
0.55*
0.55
V
II
VCC = 5.5 V,
Control inputs
±1
A
II
CC
,
VI = VCC or GND
A or B ports
±100
A
IOZH
VCC = 5.5 V,
VO = 2.7 V
10§
50
10§
A
IOZL
VCC = 5.5 V,
VO = 0.5 V
–10§
–50
–10§
A
Ioff
VCC = 0,
VI or VO ≤ 4.5 V
±100
A
ICEX
VCC = 5.5 V,
VO = 5.5 V
Outputs high
50
A
IO
VCC = 5.5 V,
VO = 2.5 V
–50
–100
–180
–50
–180
–50
–180
mA
V5 5 V
I
0
Outputs high
250
A
ICC
VCC = 5.5 V,
IO = 0,
VI =VCC or GND
Outputs low
30
mA
VI = VCC or GND
Outputs disabled
250
A
ICC#
VCC = 5.5 V,
One input at 3.4 V,
Other inputs at VCC or GND
1.5
mA
Ci
VI = 2.5 V or 0.5 V
Control inputs
7
pF
Cio
VO = 2.5 V or 0.5 V
A or B ports
12
pF
* On products compliant to MIL-STD-883, Class B, this parameter does not apply.
All typical values are at VCC = 5 V.
The parameters IOZH and IOZL include the input leakage current.
§ This data sheet limit may vary among suppliers.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
# This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 2)
VCC = 5 V,
TA = 25°C
SN54ABT646
SN74ABT646
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
fclock
Clock frequency
0
125
0
125
0
125
MHz
tw
Pulse duration, CLK high or low
4
ns
t
Setup time A or B before CLKAB
↑ or CLKBA↑
High
3.5
ns
tsu
Setup time, A or B before CLKAB
↑ or CLKBA↑
Low
3
ns
th
Hold time, A or B after CLKAB
↑ or CLKBA↑
0
ns
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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SN74ABT646DBRE4 功能描述:總線收發(fā)器 Octal Bus Trncvr/Reg W/3-State Otpt 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
SN74ABT646DBRG4 功能描述:總線收發(fā)器 Octal Bus Trans 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
SN74ABT646DGVR 功能描述:總線收發(fā)器 Tri-St. 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
SN74ABT646DGVRE4 功能描述:總線收發(fā)器 Octal Bus Trncvr/Reg W/3-State Otpt 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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