參數(shù)資料
型號(hào)： SN54LVTH18504AHV
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 總線收發(fā)器
英文描述： LVT SERIES, 20-BIT BOUNDARY SCAN REG TRANSCEIVER, TRUE OUTPUT, CQFP68
封裝： CERAMIC, QFP-68
文件頁(yè)數(shù)： 18/40頁(yè)
文件大小： 594K
代理商： SN54LVTH18504AHV
SN54LVTH18504A, SN54LVTH182504A, SN74LVTH18504A, SN74LVTH182504A
3.3-V ABT SCAN TEST DEVICES
WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
SCBS667B – JULY 1996 – REVISED JUNE 1997
25
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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T
est-Logic-Reset
Run-T
est/Idle
Select-DR-Scan
Select-IR-Scan
Capture-IR
Shift-IR
Exit1-IR
Update-IR
Select-DR-Scan
Capture-DR
Shift-DR
Exit1-DR
Update-DR
Select-DR-Scan
Select-IR-Scan
T
est-Logic-Reset
TCK
TMS
TDI
TDO
TAP
Controller
State
3-State (TDO) or Don’t Care (TDI)
Figure 13. Timing Example
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: SN54LVTH18504A
96 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN54LVTH182504A (A port or TDO)
96 mA
. . . . . . . . . . . . . . . .
SN54LVTH182504A (B port)
30 mA
. . . . . . . . . . . . . . . . . . . . . . .
SN74LVTH18504A
128 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74LVTH182504A (A port or TDO)
128 mA
. . . . . . . . . . . . . . .
SN74LVTH182504A (B port)
30 mA
. . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the high state, IO (see Note 2): SN54LVTH18504A
48 mA
. . . . . . . . . . . . . . . . . . . .
SN54LVTH182504A (A port or TDO)
48 mA
. . . .
SN54LVTH182504A (B port)
30 mA
. . . . . . . . . . .
SN74LVTH18504A
64 mA
. . . . . . . . . . . . . . . . . . . .
SN74LVTH182504A (A port or TDO)
64 mA
. . . .
SN74LVTH182504A (B port)
30 mA
. . . . . . . . . . .
Input clamp current, IIK (VI < 0)
–50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0)
–50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 3): PM package
67
°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 can 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.
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