Datasheet

SN54ABT16646, SN74ABT16646
16-BIT BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCBS212D – JUNE 1992 – REVISED JULY 1999
7
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 SN54ABT16646 SN74ABT16646
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
±20 ±20 ±20
µ
I
OZH
‡
V
CC
= 5.5 V, V
O
= 2.7 V 10 10 10 µA
I
OZL
‡
V
CC
= 5.5 V, V
O
= 0.5 V –10 –10 –10 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 –180 –50 –180 –50 –180 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 32 32 32
mA
V
I
= V
CC
or GND
Outputs disabled 2 2 2
¶
Data in
p
uts
V
CC
= 5.5 V,
One input at 3.4 V,
Outputs enabled 50 50 50
∆I
CC
¶
Data
inp
u
ts
,
Other inputs at
V
CC
or GND
Outputs disabled 50 50 50
µA
Control
inputs
V
CC
= 5.5 V, One input at 3.4 V,
Other inputs at V
CC
or GND
50 50 50
C
i
Control
inputs
V
I
= 2.5 V or 0.5 V 4 pF
C
io
A or B ports V
O
= 2.5 V or 0.5 V 8 pF
* On products compliant to MIL-PRF-38535, this parameter does not apply.
†
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.