Philips Semiconductors Product data
74ABT245Octal transceiver with direction pin (3-State)
2003 Feb 06
4
RECOMMENDED OPERATING CONDITIONS
LIMITS
Min Max
V
CC
DC supply voltage 4.5 5.5 V
V
I
Input voltage 0 V
CC
V
V
IH
HIGH-level input voltage 2.0 V
V
IL
LOW-level Input voltage 0.8 V
I
OH
HIGH-level output current –32 mA
I
OL
LOW-level output current 64 mA
∆t/∆v Input transition rise or fall rate 0 5 ns/V
T
amb
Operating free-air temperature range –40 +85 °C
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL PARAMETER TEST CONDITIONS T
amb
= +25 °C
T
amb
= –40 °C
to +85 °C
UNIT
Min Typ Max Min Max
V
IK
Input clamp voltage V
CC
= 4.5 V; I
IK
= –18 mA –0.9 –1.2 –1.2 V
V
CC
= 4.5 V; I
OH
= –3 mA; V
I
= V
IL
or V
IH
2.5 2.9 2.5 V
V
OH
High-level output voltage V
CC
= 5.0 V; I
OH
= –3 mA; V
I
= V
IL
or V
IH
3.0 3.4 3.0 V
V
CC
= 4.5 V; I
OH
= –32 mA; V
I
= V
IL
or V
IH
2.0 2.4 2.0 V
V
OL
Low-level output voltage V
CC
= 4.5 V; I
OL
= 64 mA; V
I
= V
IL
or V
IH
0.42 0.55 0.55 V
Input leakage
Control pins V
CC
= 5.5 V; V
I
= GND or 5.5 V ±0.01 ±1.0 ±1.0 µA
I
current
Data pins V
CC
= 5.5 V; V
I
= GND or 5.5 V ±5 ±100 ±100 µA
I
OFF
Power-off leakage current
V
CC
= 0.0 V; V
I
or V
O
≤ 4.5 V
±5.0 ±100 ±100 µA
I
PU
/I
PD
Power-up/down 3-State
output current
3
V
CC
= 2.0 V; V
O
= 0.5 V; V
I
= GND or V
CC
;
V
OE
= Don’t care
±5.0 ±50 ±50 µA
I
IH
+ I
OZH
3-State output High current V
CC
= 5.5 V; V
O
= 2.7 V; V
I
= V
IL
or V
IH
5.0 50 50 µA
I
IL
+ I
OZL
3-State output Low current V
CC
= 5.5 V; V
O
= 0.5 V; V
I
= V
IL
or V
IH
–5.0 –50 –50 µA
I
CEX
Output high leakage current V
CC
= 5.5 V; V
O
= 5.5 V; V
I
= GND or V
CC
5.0 50 50 µA
I
O
Output current
1
V
CC
= 5.5 V; V
O
= 2.5 V –40 –100 –180 –40 –180 mA
I
CCH
V
CC
= 5.5 V; Outputs HIGH;
V
I
= GND or V
CC
50 250 250 µA
I
CCL
Quiescent supply current
V
CC
= 5.5 V; Outputs LOW;
V
I
= GND or V
CC
24 30 30 mA
I
CCZ
V
CC
= 5.5 V; Outputs 3-State;
V
I
= GND or V
CC
50 250 250 µA
Outputs enabled, one input at 3.4 V, other
inputs at V
CC
or GND; V
CC
= 5.5 V
0.5 1.5 1.5 mA
∆I
CC
Additional supply current per
input pin
2
Outputs 3-State, one data input at 3.4 V,
other inputs at V
CC
or GND; V
CC
= 5.5 V
50 250 250 µA
Outputs 3-State, one enable input at 3.4 V,
other inputs at V
CC
or GND; V
CC
= 5.5 V
0.5 1.5 1.5 mA
NOTES:
1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
2. This is the increase in supply current for each input at 3.4 V.
3. This parameter is valid for any V
CC
between 0 V and 2.1 V with a transition time of up to 10 msec. For V
CC
= 2.1 V to V
CC
= 5 V"10%, a
transition time of up to 100 µsec is permitted.
