Datasheet

SN54ABT16543, SN74ABT16543
16-BIT REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS087C – FEBRUARY 1991 – REVISED JANUARY 1997
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
T
A
= 25°C SN54ABT16543 SN74ABT16543
UNIT
PARAMETER
TEST
CONDITIONS
MIN TYP
†
MAX MIN MAX MIN MAX
UNIT
V
IK
V
CC
= 4.5 V, I
I
= –18 mA –1.2 –1.2 –1.2 V
V
CC
= 4.5 V, I
OH
= –3 mA 2.5 2.5 2.5
V
OH
V
CC
= 5 V, I
OH
= –3 mA 3 3 3
V
V
OH
V
CC
=45V
I
OH
= –24 mA 2 2
V
V
CC
=
4
.
5
V
I
OH
= –32 mA 2* 2
V
OL
V
CC
=45V
I
OL
= 48 mA 0.55 0.55
V
V
OL
V
CC
=
4
.
5
V
I
OL
= 64 mA 0.55* 0.55
V
V
hys
100 mV
I
I
Control
inputs
V
CC
= 5.5 V, V
I
= V
CC
or GND
±1 ±1 ±1
µ
A
I
A or B ports
CC
,
ICC
±100 ±100 ±100
µ
I
OZH
‡
V
CC
= 5.5 V, V
O
= 2.7 V 50** 10 50 µA
I
OZL
‡
V
CC
= 5.5 V, V
O
= 0.5 V –50** –10 –50 µA
I
off
V
CC
= 0, V
I
or V
O
≤ 4.5 V ±100 ±100 µA
I
CEX
V
CC
= 5.5 V,
V
O
= 5.5 V
Outputs high 50 50 50 µA
I
O
§
V
CC
= 5.5 V, V
O
= 2.5 V –50 –100 –200 –50 –200 –50 –200 mA
V
CC
=
5.5 V,
Outputs high 2 2 2
I
CC
A or B ports
V
CC
=
5
.
5
V
,
I
O
= 0,
Outputs low 35 35 35
mA
V
I
= V
CC
or GND
Outputs disabled 2 2 2
∆I
CC
¶
V
CC
= 5.5 V, One input at 3.4 V,
Other inputs at V
CC
or GND
0.5 0.5 0.5 mA
C
i
Control
inputs
V
I
= 2.5 V or 0.5 V 3 pF
C
io
A or B ports V
O
= 2.5 V or 0.5 V 8.5 pF
* On products compliant to MIL-PRF-38535, this parameter does not apply.
** These limits apply only to the SN74ABT16543.
†
All typical values are at V
CC
= 5 V.
‡
The parameters I
OZH
and I
OZL
include the input leakage current.
§
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
¶
This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
CC
or GND.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
V
CC
= 5 V,
T
A
= 25°C
SN54ABT16543 SN74ABT16543
UNIT
MIN MAX MIN MAX MIN MAX
t
w
Pulse duration, LEAB or LEBA low 4 4 4 ns
t
Set p time data before LEAB↑ or LEBA↑
High 1.5 1.5 1.5
ns
t
su
S
etup t
i
me,
d
ata
b
e
f
ore
LEAB↑
or
LEBA↑
Low 3.5 3.5 3.5
ns
t
h
Hold time data after LEAB↑ or LEBA↑
High 1.5 1.5 1.5
ns
t
h
H
o
ld
t
i
me,
d
ata a
f
ter
LEAB↑
or
LEBA↑
Low 2 2 2
ns