9397 750 13129 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 03 — 24 May 2004 6 of 21
Philips Semiconductors
74LVC841A
10-bit transparant latch with 5 V tolerant inputs/outputs; 3-state
7. Functional description
7.1 Function table
[1] H = HIGH voltage level;
h = HIGH voltage level one set-up time prior to the HIGH-to-LOW LE transition;
L = LOW voltage level;
l = LOW voltage level one set-up time prior to the HIGH-to-LOW LE transition;
Z = high-impedance OFF-state;
NC = no change;
X = don’t care.
8. Limiting values
16 Q7 3-state latch output
17 Q6 3-state latch output
18 Q5 3-state latch output
19 Q4 3-state latch output
20 Q3 3-state latch output
21 Q2 3-state latch output
22 Q1 3-state latch output
23 Q0 3-state latch output
24 V
CC
supply voltage
Table 3: Pin description
…continued
Pin Symbol Description
Table 4: Function table
[1]
Operating mode Input Internal
latches
Output
OE LE Dn Qn
Enable and read register
(transparent mode)
LHLLL
LHHHH
Latch and read register L L l L L
LLhHH
Latch register and
disable outputs
HLl LZ
HLhHZ
Hold L L X NC NC
Table 5: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions Min Max Unit
V
CC
supply voltage −0.5 +6.5 V
I
IK
input diode current V
I
<0V - −50 mA
V
I
input voltage
[1]
−0.5 +6.5 V
I
OK
output diode current V
O
>V
CC
or V
O
<0V - ±50 mA
