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PDF AV16646DL Data sheet ( Hoja de datos )
| Número de pieza | AV16646DL | |
| Descripción | 2.5V/3.3V 16-bus transceiver 3-State | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
74ALVT16646
2.5V/3.3V 16-bus transceiver (3-State)
Product specification
Supersedes data of 1996 Aug 13
IC23 Data Handbook
1998 Feb 13
Philips
Semiconductors
1 page  
Philips Semiconductors
2.5V/3.3V 16-bit bus transceiver (3-State)
The following examples demonstrate the four fundamental
bus-management functions that can be performed with the
74ALVT16646.
REAL TIME BUS TRANSFER
BUS B TO BUS A
REAL TIME BUS TRANSFER
BUS A TO BUS B
Product specification
74ALVT16646
STORAGE FROM
A, B, OR A AND B
A BA B
AB
nOE nDIR nCPAB nCPBA nSAB nSBA
LL
X
X
XL
nOE nDIR nCPAB nCPBA nSAB nSBA
LH
X
X
LX
TRANSFER STORED DATA
TO A OR B
nOE
L
L
H
nDIR
H
L
X
nCPAB nCPBA
↑X
X↑
↑↑
nSAB nSBA
XX
XX
XX
1998 Feb 13
AB
nOE
L
L
nDIR nCPAB nCPBA nSAB nSBA
L X H|L X H
H H|L X
HX
5
SH00028
5 Page 
Philips Semiconductors
2.5V/3.3V 16-bit bus transceiver (3-State)
Product specification
74ALVT16646
AC CHARACTERISTICS (2.5V "0.2V RANGE)
GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.
SYMBOL
PARAMETER
WAVEFORM
fMAX
tPLH
tPHL
Maximum clock frequency
Propagation delay
nCPAB to nBx or nCPBA to nAx
tPLH Propagation delay
tPHL nSAB to nBx or nSBA to nAx
tPLH Propagation delay
tPHL nAx to nBx or nBx to nAx
tPZH
tPZL
Output enable time
to High and Low level
tPHZ
tPLZ
Output disable time
from High and Low Level
tPZH
tPZL
Output enable time
nDIR to nAx or nBx
tPHZ
tPLZ
Output disable time
nDIR to nAx or nBx
NOTE:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
1
1
2
2
3
5
6
5
6
5
6
5
6
LIMITS
VCC = 2.5V "0.2V
MIN TYP1 MAX
150
1.0 3.2 4.8
1.0 2.8 4.2
1.5 3.4 5.8
1.5 3.4 6.0
0.5 2.2 3.2
0.5 2.3 3.8
1.5 3.4 5.8
1.0 2.7 6.0
1.5 3.2 5.2
1.0 2.5 3.7
2.0 4.1 7.0
1.0 2.5 4.1
1.5 3.9 6.1
1.0 3.1 4.9
AC SETUP REQUIREMENTS (2.5V "0.2V RANGE)
GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.
SYMBOL
PARAMETER
WAVEFORM
tS(H)
tS(L)
th(H)
th(L)
tw(H)
tw(L)
Setup time, High or Low
nAx to nCPAB or nBx to nCPBA
Hold time, High or Low
nAx to nCPAB or nBx or nCPBA
Pulse width, High or Low
nCPAB or nCPBA
4
4
1
LIMITS
VCC = 2.5V "0.2V
MIN TYP
2.0 1.2
2.0 1.2
0.0 –1.0
0.0 –1.0
1.5
1.5
UNIT
MHz
ns
ns
ns
ns
ns
ns
ns
UNIT
ns
ns
ns
AC WAVEFORMS
VM = 1.5V at VCC w 3.0V; VM = VCC/2 at VCC v 2.7V
VX = VOL + 0.3V at VCC w 3.0V; VX = VOL + 0.15V at VCC v 2.7V
VY = VOH – 0.3V at VCC w 3.0V; VY = VOH – 0.15V at VCC v 2.7V
nCPBA or
nCPAB
1/fMAX
VM
tw(H)
tPHL
VM
tw(L)
VM
tPLH
3.0V or VCC
whichever
is less
0V
VOH
nAx or nBx
VM
VM
VOL
SH00030
Waveform 1. Propagation Delay, Clock Input to Output, Clock
Pulse Width, and Maximum Clock Frequency
nSBA or nSAB
nAx or nBx
VM
tPLH
VM
VM
tPHL
VM
3.0V or VCC
nAx or nBx
0V
VOH
nAx or nBx
VOL
SH00031
Waveform 2. Propagation Delay, nSAB to nBx or nSBA to nAx,
nAx to nBx or nBx to nAx
1998 Feb 13
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet AV16646DL.PDF ] | |
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