参数资料
型号: SN54GTL16923HV
厂商: TEXAS INSTRUMENTS INC
元件分类: 总线收发器
英文描述: GTL/TVC SERIES, DUAL 9-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQFP68
封装: CERAMIC, QFP-68
文件页数: 4/9页
文件大小: 153K
代理商: SN54GTL16923HV
SN54GTL16923, SN74GTL16923
18-BIT LVTTL-TO-GTL/GTL+ BUS TRANSCEIVERS
SCBS674E – AUGUST 1996 – REVISED NOVEMBER 1999
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
–0.5 V to 4.6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1)
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high or power-off state, VO (see Note 1)
–0.5 V to 7 V
. . . . . . . . .
Current into any output in the low state, IO: A port
48 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B port
100 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any A-port output in the high state, IO (see Note 2)
48 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through each VCC or GND
±100 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0)
–50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0)
–50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 3)
55
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. This current flows only when the output is in the high state and VO > VCC.
3. The package thermal impedance is calculated in accordance with JESD 51.
recommended operating conditions (see Notes 4 through 6)
SN54GTL16923
SN74GTL16923
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
3.15
3.3
3.45
3.15
3.3
3.45
V
VTT
Termination
GTL
1.14
1.2
1.26
1.14
1.2
1.26
V
VTT
voltage
GTL+
1.35
1.5
1.65
1.35
1.5
1.65
V
VREF
Supply voltage
GTL
0.74
0.8
0.87
0.74
0.8
0.87
V
VREF
Supply voltage
GTL+
0.87
1
1.1
0.87
1
1.1
V
VI
Input voltage
B port
0
VTT
0
VTT
V
VI
Input voltage
Except B port
0
5.5
0
5.5
V
VIH
High-level
B port
VREF+50 mV
V
VIH
g
input voltage
Except B port
2
V
VIL
Low-level
B port
VREF–50 mV
V
VIL
input voltage
Except B port
0.8
V
IIK
Input clamp current
–18
mA
IOH
High-level
output current
A port
–24
mA
IOL
Low-level
A port
24
mA
IOL
output current
B port
50
mA
TA
Operating free-air temperature
–55
125
–40
85
°C
NOTES:
4. 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.
5. Normal connection sequence is GND first, VCC = 3.3 V, I/O, control inputs, VTT, VREF (any order) last.
6. VTT and RTT can be adjusted to accommodate backplane impedances as long as they do not exceed the DC absolute IOL ratings.
Similarly, VREF can be adjusted to optimize noise margins, but normally is 2/3 VTT.
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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