參數(shù)資料
型號： VK501A
廠商： Texas Instruments, Inc.
英文描述： 8-BIT UNIVERSAL BUS TRANSCEIVER AND TWO 1-BIT BUS TRANSCEIVERS WITH SPLIT LVTTL PORT, FEEDBACK PATH, AND 3-STATE OUTPUTS
中文描述： 8位通用總線收發(fā)器和兩個1位總線收發(fā)器與劈開LVTTL港口，反饋路徑，以及三態(tài)輸出
文件頁數(shù)： 6/30頁
文件大小： 568K
代理商： VK501A
SCES620 – DECEMBER 2004
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
and BIAS V
CC
Input voltage range, V
I
(see Note 1)
Voltage range applied to any output in the high-impedance
or power-off state, V
O
(see Note 1)
Voltage range applied to any output in the high or low state, V
O
(see Note 1): 3A port or Y output
B port
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current in the low state, I
O
: 3A port or Y output
B port
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current in the high state, I
O
: 3A port or Y output
B port
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
(V
O
< 0 or V
O
>
V
CC
): B port
Package thermal impedance,
θ
JA
(see Note 2): DGG package
DGV package
GQL package
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
0.5 V to 4.6 V
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.5 V to V
CC
+ 0.5 V
0.5 V to 4.6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50 mA
100 mA
50 mA
100 mA
50 mA
50 mA
70
°
C/W
58
°
C/W
42
°
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
65
°
C to 150
°
C
recommended operating conditions (see Notes 3 and 4)
MIN
TYP
MAX
UNIT
VCC,
BIAS VCC
Supply voltage
3.15
3.3
3.45
V
VI
Input voltage
Control inputs or A port
VCC
VCC
5.5
V
B port
5.5
VIH
High-level input voltage
Control inputs or A port
2
V
B port
0.5 VCC + 50 mV
VIL
Low-level input voltage
Control inputs or A port
0.8
V
B port
0.5 VCC 50 mV
18
IIK
Input clamp current
mA
IOH
High-level output current
3A port and Y output
12
mA
B port
48
IOL
Low-level output current
3A port and Y output
12
mA
B port
64
t/
v
t/
VCC
TA
NOTES:
Input transition rise or fall rate
Outputs enabled
10
ns/V
μ
s/V
°
C
Power-up ramp rate
20
Operating free-air temperature
40
85
3. All unused control 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.
4. Proper connection sequence for use of the B-port I/O precharge feature is GND and BIAS VCC = 3.3 V first, I/O second, and
VCC = 3.3 V last, because the BIAS VCC precharge circuitry is disabled when any VCC pin is connected. The control inputs can be
connected anytime, but normally are connected during the I/O stage. If B-port precharge is not required, any connection sequence
is acceptable, but generally, GND is connected first.
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