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74F646A Datasheet(PDF) 10 Page - NXP Semiconductors

Part # 74F646A
Description  Octal transceiver/register, non-inverting 3-State
Download  16 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74F646A Datasheet(HTML) 10 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74F646/A/74F648/A
Transceivers/registers
1990 Sep 25
10
AC ELECTRICAL CHARACTERISTICS FOR 74F646A
LIMITS
Tamb = +25°C
Tamb = 0°C to +70°C
SYMBOL
PARAMETER
TEST CONDITION
VCC = +5.0V
VCC = +5.0V ± 10%
UNIT
CL = 50pF, RL = 500Ω
CL = 50pF, RL = 500Ω
MIN
TYP
MAX
MIN
MAX
fmax
Maximum clock frequency
Waveform 1
165
185
150
MHz
tPLH
tPHL
Propagation delay
CPAB or CPBA to An or Bn
Waveform 1
5.5
4.5
7.0
7.0
10.5
9.5
4.5
4.0
11.0
10.0
ns
tPLH
tPHL
Propagation delay
An to Bn or Bn to An
Waveform 2
4.0
2.0
6.0
5.0
9.0
8.0
3.5
2.0
10.0
8.0
ns
tPLH
tPHL
Propagation delay
SAB or SBA to An or Bn
Waveform 2, 3
4.5
3.5
6.5
8.0
9.5
10.0
4.0
3.0
10.0
11.5
ns
tPZH
tPZL
Output enable time
OE to An or Bn
Waveform 5
Waveform 6
3.0
3.0
5.5
5.5
9.0
10.0
2.5
2.5
10.0
10.5
ns
tPZH
tPZL
Output enable time
DIR to An or Bn
Waveform 5
Waveform 6
3.0
3.5
5.0
6.0
8.0
8.5
3.0
3.0
8.5
9.5
ns
tPHZ
tPLZ
Output disable time
OE to An or Bn
Waveform 5
Waveform 6
1.5
2.5
4.0
5.5
6.5
8.0
1.0
2.0
8.0
9.5
ns
tPHZ
tPLZ
Output disable time
DIR to An or Bn
Waveform 5
Waveform 6
2.0
3.0
4.5
5.0
7.5
8.0
1.5
2.0
8.5
8.5
ns
AC SETUP REQUIREMENTS FOR 74F646A
LIMITS
Tamb = +25°C
Tamb = 0°C to +70°C
SYMBOL
PARAMETER
TEST CONDITION
VCC = +5.0V
VCC = +5.0V ± 10%
UNIT
CL = 50pF, RL = 500Ω
CL = 50pF, RL = 500Ω
MIN
TYP
MAX
MIN
MAX
tsu (H)
tsu (L)
Setup time, high or low
An or Bn to CPAB or CPBA
Waveform 4
3.5
4.0
4.0
4.5
ns
th (H)
th (L)
Hold time, high or low
An or Bn to CPAB or CPBA
Waveform 4
0
0
0
0
ns
tw (H)
tw (L)
Pulse width, high or low
CPAB or CPBA
Waveform 1
3.5
3.5
4.5
4.0
ns


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