74LVC1284DB,118 NXP Semiconductors, 74LVC1284DB,118 Datasheet - Page 6

• Manufacturer Part Number: 74LVC1284DB,118
• Description: IC PRINTR INTFC TXRX/BUFF 20SSOP
• Manufacturer: NXP Semiconductors
• Series: 74LVCr
• Type: Transceiverr

Specifications of 74LVC1284DB,118

• Package / Case: 20-SSOP
• Number Of Drivers/receivers: 4/4
• Protocol: IEEE 1284
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 74LVC1284DB-T; 74LVC1284DB-T; 935213660118

Philips Semiconductors
1995 Nov 10
3.3V Parallel printer interface transceiver/buffer
GENERATOR
DEFINITIONS
C
R
R
pulse generators.
GENERATOR
GENERATOR
Figure 1. Load Circuitry for Bn to An Switching Times
PULSE
T
L
L
PULSE
PULSE
= Load capacitance includes jig and probe capacitance;
= Load resistor; see AC CHARACTERISTICS for value.
= Termination resistance should be equal to Z
see AC CHARACTERISTICS for value.
2.7V – 3.6V
t 2.7V
V
CC
V
I
Test Circuit for B
Test Circuit for A
V
V
IN
IN
R
R
2.7V
V
T
V
R
T
CC
D.U.T.
I
T
V
CC
D.U.T.
D.U.T
V
V
CC
CC
V
n
O
or Y
C
t
t
n
t
PLH
PHZ
PLZ
L
Outputs
Test
n
/t
/t
/t
PZL
PZH
PHL
Outputs
50pF
V
V
OUT
OUT
C
L
2 x V
Open
GND
S
500
500
1
S
CC
OUT
1
R
50pF
L
SY00003
= 500
= 62 for SR test
of
R
2 x V
Open
GND
L
Waveform 5.
CC
S
t
PLH
1
/
PHL
6
GND
FAMILY
POSITIVE
V
NEGATIVE
74LVC
PULSE
CC
PULSE
TEST CIRCUIT
90%
10%
I
be calculated using the equation RD = V
Amplitude
O
is measured by forcing V
3.0V
V
V
M
M
10%
90%
Input Pulse Definition
Figure 2. Output Impedance RD
INPUT PULSE REQUIREMENTS
t
t
SWITCH POSITION
THL
TLH
TEST
Bn or Yn Outputs
t
t
PLH
PHL
V
(t
(t
M
f
r
)
)
Rep. Rate
= 1.5V
t
t
W
W
1MHz
D.U.T.
V
SWITCH
CC
CC
GND
V
/2 on the output. RD can then
CC
90%
10%
V
I
V
O
500ns
M
M
t
CC
W
/2 I
V
CC
74LVC1284
O
/2
10%
.
SY00005
90%
Product specification
t
t
THL
TLH
3ns
t
r
(t
(t
f
r
)
)
AMP (V)
0V
AMP (V)
0V
3ns
SY00004
t
f