參數(shù)資料
型號： SN54LVT8980JT
廠商： TEXAS INSTRUMENTS INC
元件分類： 微控制器/微處理器
英文描述： SPECIALTY MICROPROCESSOR CIRCUIT, CDIP24
封裝： 0.300 INCH, CERAMIC, DIP-24
文件頁數(shù)： 19/36頁
文件大小： 509K
代理商： SN54LVT8980JT
SN54LVT8980, SN74LVT8980
EMBEDDED TEST-BUS CONTROLLERS
IEEE STD 1149.1 (JTAG) TAP MASTERS WITH 8-BIT GENERIC HOST INTERFACES
SCBS676D – DECEMBER 1996 – REVISED AUGUST 2002
26
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): D, RDY
–0.5 V to VCC + 0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TCK, TDO, TMS, TRST
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the low state, IO: SN54LVT8980 (D, RDY)
12 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SN54LVT8980 (TCK, TDO, TMS, TRST)
96 mA
. . . . . . . . . . . . .
SN74LVT8980 (D, RDY)
12 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74LVT8980 (TCK, TDO, TMS, TRST)
128 mA
. . . . . . . . . . . .
Current into any output in the high state, IO
(see Note 2): SN54LVT8980 (D, RDY)
16 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN54LVT8980 (TCK, TDO, TMS, TRST)
48 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74LVT8980 (D, RDY)
16 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74LVT8980 (TCK, TDO, TMS, TRST)
64 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0)
–50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0)
–50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO > VCC): D, RDY
50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 3): DW package
46
°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 voltage ratings may be exceeded if the input and output 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 51-7.
recommended operating conditions (see Note 4)
SN54LVT8980
SN74LVT8980
UNIT
MIN
MAX
MIN
MAX
UNIT
VCC
Supply voltage
2.7
3.6
2.7
3.6
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VI
Input voltage
5.5
V
IOH
High level output current
D, RDY
–8
mA
IOH
High-level output current
TCK, TDO, TMS, TRST
–24
–32
mA
IOL
Low level output current
D, RDY
6
mA
IOL
Low-level output current
TCK, TDO, TMS, TRST
48
64
mA
t/v
Input transition rise or fall rate
10
ns/V
t/VCC
Power-up ramp rate
200
s/V
TA
Operating free-air temperature
–55
125
–40
85
°C
NOTE 4: Unused control inputs (A, CLKIN, R/W) must be held high or low to prevent them from floating.
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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