Philips Semiconductors Product specification
74LVC12843.3V Parallel printer interface transceiver/buffer
1995 Nov 10
3
PIN DESCRIPTION
PIN NUMBER SYMBOL FUNCTION
1,2,3,4 A1 - A4 Data inputs/outputs
20,19,18,17 B1 - B4
IEEE 1284 Std.
outputs/inputs
7,8,9 A5 - A7 Data inputs
14,13,12 Y5 - Y7 IEEE 1284 Std. outputs
10 DIR Direction selection
11 HD
B/Y–side high drive
enable/disable
5,6 GND Ground (0V)
15,16 V
CC
Positive supply voltage
FUNCTION TABLE
INPUTS OUTPUTS INPUTS/OUTPUTS
DIR HD A5-7 Y5-7 A1-4 B1-4
L L L L A = B Inputs
L L H Z A = B Inputs
L H L L A = B Inputs
L H H H A = B Inputs
H L L L Inputs Low Outputs Low
H L H Z Inputs High Outputs Z
H H L L Inputs B = A
H H H H Inputs B = A
H = High Voltage
L = Low Voltage
Z = High Impedance, Off-State
ABSOLUTE MAXIMUM RATINGS
1,
2
SYMBOL
PARAMETER CONDITIONS RATING UNIT
ESD Immunity, per Mil Std 883C method 3015 2 kV
V
CC
DC supply voltage –0.5 to +4.6 V
I
IK
DC input diode current V
I
< 0 20 mA
I
OK
DC output diode current V
O
< 0 50 mA
V
IN
DC input voltage
3
–0.5 to +5.5 V
V
OUT
B/Y
DC
DC output voltage on B/Y side
3
–0.5 to +5.5 V
V
OUT
B/Y (tr) Transient output voltage on B/Y side
4
40ns transient –2 to +7 V
V
OUT
A side DC output voltage on A side –0.5 to V
CC
+0.5 V
I
O
DC output current Outputs in High or Low state 50 mA
T
stg
Storage temperature range –60 to +150 °C
I
CC
/I
GND
Continuous current through V
CC
or GND 200 mA
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
4. V
OUT
B/Y (tr) guarantees only that this part will not be damaged by reflections in application so long as the voltage levels remain in the
specified range.
RECOMMENDED OPERATING CONDITIONS
LIMITS
MIN MAX
V
CC
DC supply voltage 3.0 3.6 V
V
I
Input voltage 0 V
CC
V
V
OUT
B/Y output voltage –0.5 5.5 V
V
OUT
A side output voltage 0 V
CC
V
I
OH
B/Y side output current High –14 mA
I
OL
B/Y side output current Low 14 mA
T
amb
Operating free-air temperature range 0 +70 °C
