Datasheet
SCBS159E − JANUARY 1991 − REVISED APRIL 2005
4
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 SN54ABT827 SN74ABT827
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
= 4.5 V
I
OH
= −24 mA 2 2
V
V
CC
= 4.5 V
I
OH
= −32 mA 2* 2
V
OL
V
CC
= 4.5 V
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
V
CC
= 0 to 5.5 V, V
I
= V
CC
or GND ±1 ±1 ±1 µA
I
OZPU
‡
V
CC
= 0 to 2.1 V, V
O
= 0.5 V to 2.7 V, OE = X ±50 ±10 ±50 µA
I
OZPD
‡
V
CC
= 2.1 V to 0, V
O
= 0.5 V to 2.7 V, OE = X ±50 ±10 ±50 µA
I
OZH
V
CC
= 2.1 V to 5.5 V, V
O
= 2.7 V, OE ≥ 2 V 10
§
10 10
§
µA
I
OZL
V
CC
= 2.1 V to 5.5 V, V
O
= 0.5 V, OE ≥ 2 V −10
§
−10 −10
§
µA
I
off
V
CC
= 0, V
I
or V
O
≤ 5.5 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 −140 −225
§
−50 −225
§
−50 −225
§
mA
V
CC
= 5.5 V, I
O
= 0,
Outputs high 80 250 250 250 µA
I
CC
V
CC
= 5.5 V, I
O
= 0,
V
I
= V
CC
or GND
Outputs low 35 40
§
40
§
40
§
mA
I
CC
V
I
= V
CC
or GND
Outputs disabled 80 250 250 250 µA
V
CC
= 5.5 V,
Outputs enabled 1.5 1.5 1.5 mA
∆I
CC
#
V
CC
= 5.5 V,
One input at 3.4 V,
Other inputs at V or GND
Outputs disabled 50 50 50 µA
∆I
CC
#
One input at 3.4 V,
Other inputs at V
CC
or GND
Control inputs 1.5 1.5 1.5 mA
C
i
V
I
= 2.5 V or 0.5 V 4 pF
C
o
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.
‡
This parameter is characterized, but not production tested.
§
This data sheet limit may vary among suppliers.
¶
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.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
SN54ABT827 SN74ABT827
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
PLH
A
Y
1.1 2.6 4.4 1.1 4.9 1.1 4.8
ns
t
PHL
A Y
1.1 2.3 4.1 1.1 4.8 1.1 4.7
ns
t
PZH
OE
Y
1
§
3.2 5.1 1 6 1
§
5.9
ns
t
PZL
OE
Y
1
§
3.3 5.9 1 7.1 1
§
6.9
ns
t
PHZ
OE
Y
2 4.9 6.3 2 7 2 6.8
ns
t
PLZ
OE
Y
1.3
§
4.2 6.6 1.3 7.9 1.3
§
6.9
ns
§
This data sheet limit may vary among suppliers.