SN54ABT18502_14 Datasheet, PDF (27/32 Pages) Texas Instruments – SCAN TEST DEVICE WITH 18-BIT REGISTERED BUS TRANSCEIVER

SN54ABT18502
SCAN TEST DEVICE WITH
18-BIT REGISTERED BUS TRANSCEIVER
SCBS109C – AUGUST 1992 – REVISED AUGUST 1994
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (normal mode) (see Figure 13)
PARAMETER
fmax
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
FROM
(INPUT)
CLKAB or CLKBA
A or B
CLKAB or CLKBA
LEAB or LEBA
OEAB or OEBA
OEAB or OEBA
TO
(OUTPUT)
B or A
B or A
B or A
B or A
B or A
VCC = 5 V,
TA = 25°C
MIN TYP MAX
100 130
2 3.8 5.6
2 3.8 6.6
2.5 4.7 6.7
2.5 4.7 5.7
2.5 4.9 7.4
2.5 4.9 6.5
2 4.9 7.3
2.5 5.6 7.2
3 6.1 8.8
2.5 4.8 6.5
UNIT
MIN MAX
100
MHz
2 6.5
ns
2 7.2
2.5 8.2
ns
2.5 7.1
2.5 8.5
ns
2.5 7.8
2 8.5
ns
2.5 8.3
3 10.6
ns
2.5 7.4
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (test mode) (see Figure 13)123
PARAMETER
fmax
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
FROM
(INPUT)
TCK
TCK↓
TCK↓
TCK↓
TCK↓
TCK↓
TCK↓
TO
(OUTPUT)
A or B
TDO
A or B
TDO
A or B
TDO
VCC = 5 V,
TA = 25°C
MIN TYP MAX
50
90
2.5 9.1 12.4
2.5 9.1 11.8
2 3.8 6.1
2 3.8 6.3
4.5 9.5 13.5
5 10.1 13.2
2.5 4.6 7.9
3 5.2 7.8
4 11.6 15.3
3.5 11.1 13.6
3 5.3 9.2
3 5.2 6.8
UNIT
MIN MAX
50
MHz
2.5 16.9
ns
2.5 14.6
2
7
ns
2 7.6
4.5
17
ns
5 15.8
2.5 8.2
ns
3 8.9
4 18.5
ns
3.5 18.5
3 10.7
ns
3
8
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
4–27