74ABT2241 Datasheet, PDF (5/12 Pages) NXP Semiconductors – Octal buffer with 30ohm series termination resistors; 3-State

Philips Semiconductors
Octal buffer with 30W series termination resistors
(3-State)
Product specification
74ABT2241
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. This parameter is valid for any V_CC between 0V and 2.1V with a transition time of up to 10msec. For V_CC = 2.1V to V_CC = 5V " 10%, a
transition time of up to 100 µsec is permitted.
AC CHARACTERISTICS
GND = 0V; t_R = t_F = 2.5ns; C_L = 50pF, R_L = 500Ω
SYMBOL
PARAMETER
WAVEFORM
t_PLH
Propagation delay
t_PHL
An to Yn
1
t_PZH
Output enable time
t_PZL
to High and Low level
2
t_PHZ
Output disable time
t_PLZ
from High and Low level
2
LIMITS
T_amb = +25°C
V_CC = +5.0V
Min
Typ
Max
T_amb = –40°C to +85°C
V_CC = +5.0V ±0.5V
Min
Max
1.0
2.7
4.3
1.0
4.7
1.0
3.9
5.3
1.0
5.6
1.1
3.3
4.8
1.1
5.8
2.1
5.4
7.6
2.1
8.4
1.7
3.8
5.6
1.7
6.6
1.7
3.4
5.8
1.7
6.4
UNIT
ns
ns
ns
AC WAVEFORMS
V_M = 1.5V, V_IN = GND to 3.0V
An INPUT
V_M
t_PLH
V_M
t_PHL
V_M
V_M
Yn OUTPUT
SA00028
Waveform 1. Waveforms Showing the Input (An)
to Output (Yn) Propagation Delays
OE INPUT
OE INPUT
V_M
t_PZL
V_M
t_PLZ
3.5V
Yn OUTPUT
V_M
t_PZH
Yn OUTPUT
V_M
t_PHZ
V_OL + 0.3V
V_OL
V_OH
V_OH – 0.3V
0V
SA00041
Waveform 2. Waveforms Showing the 3–State Output
Enable and Disable Times
1996 Sep 30
5