参数资料
型号: SN74ABT2952ADBRG4
厂商: Texas Instruments
文件页数: 15/20页
文件大小: 0K
描述: IC BUS TRANSCEIVER DUAL 24SSOP
标准包装: 2,000
系列: 74ABT
逻辑类型: 寄存收发器,非反相
元件数: 2
每个元件的位元数: 8
输出电流高,低: 32mA,64mA
电源电压: 4.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SSOP(0.209",5.30mm 宽)
供应商设备封装: 24-SSOP
包装: 带卷 (TR)
SN54ABT2952A, SN74ABT2952A
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCBS203D – AUGUST 1992 – REVISED JANUARY 1998
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 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (except I/O ports) (see Note 1)
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high or power-off state, VO
–0.5 V to 5.5 V
. . . . . . . . . . . . . . . . . . .
Current into any output in the low state, IO: SN54ABT2952A
96 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ABT2952A
128 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0)
–18 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0)
–50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 2): DB package
104
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DW package
81
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NT package
67
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
120
°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. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions (see Note 3)
SN54ABT2952A
SN74ABT2952A
UNIT
MIN
MAX
MIN
MAX
UNIT
VCC
Supply voltage
4.5
5.5
4.5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VI
Input voltage
0
VCC
0
VCC
V
IOH
High-level output current
–24
–32
mA
IOL
Low-level output current
48
64
mA
t/v
Input transition rise or fall rate
Outputs enabled
10
ns/V
TA
Operating free-air temperature
–55
125
–40
85
°C
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.
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