參數(shù)資料
型號: 935244170118
廠商: NXP SEMICONDUCTORS
元件分類: 總線收發(fā)器
英文描述: ABT SERIES, 20 1-BIT DRIVER, TRUE OUTPUT, PDSO56
封裝: 7.50 MM, PLASTIC, MO-118, SOT-371-1, SSOP3-56
文件頁數(shù): 6/9頁
文件大?。?/td> 93K
代理商: 935244170118
Philips Semiconductors
Product data
74ABT162827A
20-bit buffer/line driver, non-inverting,
with 30
W termination resistors (3-State)
2002 Apr 03
6
AC CHARACTERISTICS
GND = 0 V, tR = tF = 2.5 ns, CL = 50 pF, RL = 500
LIMITS
SYMBOL
PARAMETER
WAVEFORM
Tamb = +25 °C
VCC = +5.0 V
Tamb = –40 °C to +85 °C
VCC = +5.0V ±0.5V
UNIT
MIN
TYP
MAX
MIN
MAX
tPLH
tPHL
Propagation delay
nAx to nYx
1
1.0
1.8
1.4
2.6
1.0
2.9
ns
tPZH
tPZL
Output enable time
to High and Low level
2
1.5
2.0
3.0
3.6
4.2
4.9
1.5
2.0
5.2
6.0
ns
tPHZ
tPLZ
Output disable time
from High and Low level
2
2.0
1.5
3.4
2.8
4.8
4.0
2.0
1.5
5.4
4.3
ns
AC WAVEFORMS
nAx INPUT
VM
nYx
OUTPUT
VM
tPLH
tPHL
SA00016
3.0V or VCC
whichever
is less
0V
VOH
VOL
Waveform 1.
Input (nAx) to Output (nYx) Propagation Delays
nOEx INPUT
VM
tPZH
tPHZ
nYx OUTPUT
VOH
VM
nYx OUTPUT
VOL
tPZL
tPLZ
3.5V
0V
VOL + 0.3V
VOH – 0.3V
SA00071
Waveform 2.
3-State Output Enable and Disable Times
TEST CIRCUIT AND WAVEFORM
PULSE
GENERATOR
RT
VIN
D.U.T.
VOUT
RL
VCC
RL
7.0V
Test Circuit for 3-State Outputs
VM
tW
AMP (V)
NEGATIVE
PULSE
10%
90%
0V
VM
tW
AMP (V)
POSITIVE
PULSE
90%
10%
0V
tTHL (tF)
tTLH (tR)tTHL (tF)
tTLH (tR)
VM = 1.5V
Input Pulse Definition
DEFINITIONS
RL = Load resistor; see AC CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
INPUT PULSE REQUIREMENTS
FAMILY
Amplitude
Rep. Rate
tW
tR
tF
74ABT/H16
3.0V
1MHz
500ns
2.5ns
SWITCH POSITION
TEST
SWITCH
tPLZ
closed
tPZL
closed
All other
open
SA00018
CL
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