1999 Nov 23 3
Philips Semiconductors Product specification
16-bit D-type registered transceiver; 3-state 74ALVCH16543
QUICK REFERENCE DATA
Ground = 0; T
amb
=25°C; t
r
=t
f
= 2.5 ns
Notes
1. C
PD
is used to determine the dynamic power dissipation (P
D
in µW).
P
D
=C
PD
× V
CC
2
× f
i
+ Σ (C
L
× V
CC
2
× f
o
) where:
f
i
= input frequency in MHz;
C
L
= output load capacitance in pF;
f
o
= output frequency in MHz;
V
CC
= supply voltage in Volts;
Σ (C
L
× V
CC
2
× f
o
) = sum of outputs.
2. The condition is V
I
= GND to V
CC
.
ORDERING INFORMATION
PINNING
SYMBOL PARAMETER CONDITIONS TYPICAL UNIT
t
PHL
/t
PLH
propagation delay nA
n
,nB
n
to nB
n
,nA
n
C
L
= 50 pF;
V
CC
= 3.3 V
3.8 ns
C
I
input capacitance 4.0 pF
C
PD
power dissipation capacitance per latch notes 1 and 2
outputs enabled 44 pF
outputs disabled 14 pF
OUTSIDE NORTH
AMERICA
NORTH
AMERICA
PACKAGE
TEMPERATURE
RANGE
PINS PACKAGE MATERIAL CODE
74ALVCH16543DGG ACH16543 DGG −40 to +85 °C 56 TSSOP plastic SOT364-1
PIN SYMBOL DESCRIPTION
1 and 28 1
OE
AB
, 2OE
AB
output enable A-to-B for register 1 or 2
2 and 27 1
LE
AB
, 2LE
AB
latch enable A-to-B for register 1 or 2
3 and 26 1
E
AB
, 2E
AB
A-to-B enable for register 1 or 2
4, 11, 18, 25, 32, 39, 46 and 53 GND ground (0 V)
5, 6, 8, 9, 10, 12, 13 and 14 1A
0
to 1A
7
data inputs/outputs
7, 22, 35 and 50 V
CC
DC supply voltage
15, 16, 17, 19, 20, 21, 23 and 24 2A
0
to 2A
7
data inputs/outputs
29 and 56 2
OE
BA
, 1OE
BA
output enable B-to-A for register 1 or 2
30 and 55 2
LE
BA
, 1LE
AB
latch enable B-to-A for register 1 or 2
31 and 54 2
E
BA
, 1E
BA
B-to-A enable for register 1 or 2
33, 34, 36, 37, 38, 40, 41 and 42 2B
7
to 2B
0
data inputs/outputs
43, 44, 45, 47, 48, 49, 51 and 52 1B
7
to 1B
0
data inputs/outputs
