Datasheet

SN54ABT8652, SN74ABT8652
SCAN TEST DEVICES
WITH OCTAL BUS TRANSCEIVERS AND REGISTERS
SCBS122F – AUGUST 1992 – REVISED DECEMBER 1996
23
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (test mode) (see Figure 14)
SN54ABT8652
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN TYP MAX
f
max
TCK 50 90 50 MHz
t
PLH
TCK↓
AorB
3.5 8 10.2 3.3 13.7
ns
t
PHL
TCK↓
A
or
B
3 7.7 9 3 12
ns
t
PLH
TCK↓
TDO
2.5 4.3 5.5 2.5 7
ns
t
PHL
TCK↓
TDO
2.5 4.2 5.5 2.5 7
ns
t
PZH
TCK↓
AorB
4.5 8.2 9.5 4.3 12.5
ns
t
PZL
TCK↓
A
or
B
4.5 9 10.5 4.5 13.5
ns
t
PZH
TCK↓
TDO
2.5 4.3 5.5 2.5 7
ns
t
PZL
TCK↓
TDO
2.5 4.9 6 2.5 7.5
ns
t
PHZ
TCK↓
AorB
3.5 8.4 12.9 3.5 14
ns
t
PLZ
TCK↓
A
or
B
3 8 10.5 3 13.5
ns
t
PHZ
TCK↓
TDO
3 5.9 7 3 9
ns
t
PLZ
TCK↓
TDO
3 5 6.5 3 8
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (test mode) (see Figure 14)
SN74ABT8652
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN TYP MAX
f
max
TCK 50 90 50 MHz
t
PLH
TCK↓
AorB
3.5 8 9.5 3.5 12
ns
t
PHL
TCK↓
A
or
B
3 7.7 9 3 11.5
ns
t
PLH
TCK↓
TDO
2.5 4.3 5.5 2.5 6.5
ns
t
PHL
TCK↓
TDO
2.5 4.2 5.5 2.5 6.5
ns
t
PZH
TCK↓
AorB
4.5 8.2 9.5 4.5 12
ns
t
PZL
TCK↓
A
or
B
4.5 9 10.5 4.5 13
ns
t
PZH
TCK↓
TDO
2.5 4.3 5.5 2.5 6.5
ns
t
PZL
TCK↓
TDO
2.5 4.9 6 2.5 7
ns
t
PHZ
TCK↓
AorB
3.5 8.4 10.5 3.5 13.5
ns
t
PLZ
TCK↓
A
or
B
3 8 10.5 3 13
ns
t
PHZ
TCK↓
TDO
3 5.9 7 3 8.5
ns
t
PLZ
TCK↓
TDO
3 5 6.5 3 7.5
ns