Philips Semiconductors Product specification
74ABT899
9-bit dual latch transceiver with 8-bit parity
generator/checker (3-State)
1998 Jan 16
6
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER LIMITS UNIT
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
= 4.5V; I
IK
= –18mA –0.9 –1.2 –1.2 V
V
CC
= 4.5V; I
OH
= –3mA; V
I
= V
IL
or V
IH
2.5 3.5 2.5 V
V
OH
High-level output voltage V
CC
= 5.0V; I
OH
= –3mA; V
I
= V
IL
or V
IH
3.0 4.0 3.0 V
V
CC
= 4.5V; I
OH
= –32mA; V
I
= V
IL
or V
IH
2.0 2.6 2.0 V
V
OL
Low-level output voltage V
CC
= 4.5V; I
OL
= 64mA; V
I
= V
IL
or V
IH
0.42 0.55 0.55 V
V
RST
Power-up output low
voltage
3
V
CC
= 5.5V; I
O
= 1mA; V
I
= GND or V
CC
0.13 0.55 0.55 V
I
I
Input leakage Control pins V
CC
= 5.5V; V
I
= GND or 5.5V ±0.01 ±1.0 ±1.0 µA
current Data pins V
CC
= 5.5V; V
I
= GND or 5.5V ±5 ±100 ±100 µA
I
OFF
Power-off leakage current V
CC
= 0.0V; V
O
or V
I
≤
4.5V ±5.0 ±100 ±100 µA
I
PU
/I
PD
Power-up/down 3-State
output current
4
V
CC
= 2.1V; V
O
= 0.5V; 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
= 5.5V; V
O
= 2.7V; V
I
= V
IL
or V
IH
5.0 50 50 µA
I
IL
+ I
OZL
3-State output Low current V
CC
= 5.5V; V
O
= 0.5V; V
I
= V
IL
or V
IH
–5.0 –50 –50 µA
I
CEX
Output High leakage current V
CC
= 5.5V; V
O
= 5.5V; V
I
= GND or V
CC
5.0 50 50 µA
I
O
Output current
1
V
CC
= 5.5V; V
O
= 2.5V –50 –80 –180 –50 –180 mA
I
CCH
V
CC
= 5.5V; Outputs High, V
I
= GND or V
CC
50 250 250 µA
I
CCL
Quiescent supply current V
CC
= 5.5V; Outputs Low, V
I
= GND or V
CC
28 34 34 mA
I
CCZ
V
CC
= 5.5V; Outputs 3-State;
V
I
= GND or V
CC
50 250 250 µA
∆I
CC
Additional supply current per
input pin
2
V
CC
= 5.5V; one input at 3.4V,
other inputs at V
CC
or GND
0.3 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 3.4V.
3. For valid test results, data must not be loaded into the flip-flops (or latches) after applying the power.
4. This parameter is valid for any V
CC
between 0V and 2.1V, with a transition time of up to 10msec. From V
CC
= 2.1V to V
CC
= 5V ± 10%, a
transition time of up to 100µsec is permitted.
