參數(shù)資料
型號(hào): SN74HCT645NSR
廠商: Texas Instruments, Inc.
英文描述: OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
中文描述: 八路總線收發(fā)器與三態(tài)輸出
文件頁(yè)數(shù): 3/15頁(yè)
文件大?。?/td> 412K
代理商: SN74HCT645NSR
SCLS019D MARCH 1984 REVISED AUGUST 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54HCT645
MIN
NOM
SN74HCT645
MIN
NOM
UNIT
MAX
MAX
VCC
VIH
VIL
VI
VO
t/
v
TA
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
VCC = 4.5 V to 5.5 V
VCC = 4.5 V to 5.5 V
2
2
V
Low-level input voltage
0.8
0.8
V
Input voltage
0
VCC
VCC
500
0
VCC
VCC
500
V
Output voltage
0
0
V
Input transition rise/fall time
ns
°
C
Operating free-air temperature
55
125
40
85
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25
°
C
TYP
4.499
SN54HCT645
MIN
4.4
SN74HCT645
MIN
4.4
UNIT
MIN
4.4
MAX
MAX
MAX
VOH
VI = VIH or VIL
IOH = 20
μ
A
IOH = 6 mA
IOL = 20
μ
A
IOL = 6 mA
4.5 V
V
3.98
4.3
3.7
3.84
VOL
VI = VIH or VIL
4.5 V
0.001
0.1
0.1
0.1
V
0.17
±
0.1
±
0.01
0.26
±
100
±
0.5
0.4
0.33
±
1000
II
IOZ
ICC
DIR or OE
VI = VCC or 0
VO = VCC or 0
VI = VCC or 0,
One input at 0.5 V or 2.4 V,
Other inputs at 0 or VCC
5.5 V
±
1000
±
10
160
nA
μ
A
μ
A
A or B
5.5 V
±
5
80
IO = 0
5.5 V
8
ICC
5.5 V
1.4
2.4
3
2.9
mA
Ci
DIR or OE
4.5 V
to 5.5 V
3
10
10
10
pF
This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
VCC
TA = 25
°
C
TYP
SN54HCT645
SN74HCT645
UNIT
(OUTPUT)
MIN
MAX
MIN
MAX
MIN
MAX
tpd
A or B
B or A
4.5 V
16
22
33
28
ns
5.5 V
14
20
30
25
ten
OE
A or B
4.5 V
25
46
69
58
ns
5.5 V
22
41
62
52
tdis
OE
A or B
4.5 V
26
40
60
50
ns
5.5 V
23
36
54
45
tt
A or B
4.5 V
5.5 V
9
8
12
11
18
16
15
14
ns
$&'"%$
$#'$
('!
$ # &'"%0#
%% %$ #'
'##'0#
'
#/$
(#&%$
%$/#
(%#
& #0#*("#$+
%'# #/$
' $$!#
%'%#'
$'!"#$
-!
/%*+
#,%
# '/
##
('!
$#+
相關(guān)PDF資料
PDF描述
SN74HCT645NSRE4 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74HCT645PWRE4 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74HCT645PWRG4 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74LS299DWR 8-BIT UNIVERSAL SHIFR/STORAGE REGISTERS
SN74LS299DWRE4 8-BIT UNIVERSAL SHIFR/STORAGE REGISTERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74HCT645NSRE4 功能描述:總線收發(fā)器 Octal Bus Trnscvrs With 3-State Outputs 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(shí)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
SN74HCT645NSRG4 功能描述:總線收發(fā)器 Octal Bus Transceivr 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(shí)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
SN74HCT645PW 功能描述:總線收發(fā)器 Octal Bus Trnscvrs With 3-State Outputs 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(shí)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
SN74HCT645PWE4 功能描述:總線收發(fā)器 Octal Bus Trnscvrs With 3-State Outputs 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(shí)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
SN74HCT645PWG4 功能描述:總線收發(fā)器 Octal Bus Transceivr 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(shí)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