SN54LVT8980A Datasheet, PDF (30/35 Pages) Texas Instruments – EMBEDDED TEST-BUS CONTROLLERS IEEE STD 1149.1 (JTAG) TAP MASTER WITH 8-BIT GENERIC HOST INTERFACES

SN54LVT8980A, SN74LVT8980A
EMBEDDED TESTĆBUS CONTROLLERS
IEEE STD 1149.1 (JTAG) TAP MASTERS WITH 8ĆBIT GENERIC HOST INTERFACES
SCBS755B − APRIL 2002 − REVISED MARCH 2004
switching characteristics over recommended operating free-air temperature range (unless
otherwise noted) (see Figures 9 and 10)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
CLKIN
CLKIN
RST↓
RST↓
RST↓
STRB↑
STRB↓
STRB↑
TCK
TDO, TMS
D
RDY
TDO, TMS,
TRST
TCK
RDY
TCK, TDO,
TMS, TRST
discrete mode
tPLH
tPHL
STRB↑
TCK, TDO,
TMS, TRST
other modes
tPZH
tPZL
STRB↓
D
tPZH
tPZL
STRB↑
TCK, TDO,
TMS, TRST
tPZH
tPZL
TOE↓
TCK, TDO,
TMS, TRST
tPHZ
tPLZ
STRB↑
D
tPHZ
tPLZ
STRB↑
TCK, TDO,
TMS, TRST
tPHZ
tPLZ
TOE↑
TCK, TDO,
TMS, TRST
† _{All typical values are at VCC = 3.3 V, TA = 25°C.}
SN54LVT8980A
VCC = 3.3 V
± 0.3 V
VCC = 2.7 V
MIN MAX MIN MAX
6
20
25
6
20
25
8
35
40
8
35
40
3
35
40
3
35
40
3
35
40
3
35
40
5
30
35
5
30
35
3
22
28
3
22
28
3
28
35
3
28
35
6
40
45
6
40
45
3
20
25
3
20
25
5
30
35
5
30
35
2
15
18
2
15
18
3
20
25
3
20
25
5
30
35
5
30
35
2
15
18
2
15
18
SN74LVT8980A
VCC = 3.3 V
± 0.3 V
MIN TYP† MAX
VCC = 2.7 V
MIN MAX
6
10
17
20
6
10
17
20
8
18
30
35
8
18
30
35
3
17
30
35
3
17
30
35
3
17
30
35
3
17
30
35
UNIT
ns
ns
ns
ns
5
15
25
5
15
25
3
10
18
3
10
18
3
14
22
3
14
22
30
ns
30
22
ns
22
28
ns
28
6
20
35
6
20
35
3
8
15
3
8
15
5
15
25
5
15
25
2
6
12
2
6
12
3
8
15
3
8
15
5
15
25
5
15
25
2
6
12
2
6
12
40
ns
40
18
ns
18
30
ns
30
15
ns
15
18
ns
18
30
ns
30
15
ns
15
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