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74F621 Datasheet, PDF (5/10 Pages) NXP Semiconductors – Octal bus transceiver, non-inverting open collector
Philips Semiconductors
Octal bus transceiver, non-inverting (open collector)
Product specification
74F621
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
tPLH
Propagation delay
tPHL
An to Bn
tPLH
Propagation delay
tPHL
Bn to An
tPLH
Propagation delay
tPHL
OEBA to An
tPLH
Propagation delay
tPHL
OEAB to Bn
AC WAVEFORMS
For all waveforms, VM = 1.5V.
TEST
CONDITION
Waveform 1
Waveform 1
Waveform 2
Waveform 3
LIMITS
VCC = +5V
Tamb = +25°C
CL = 50pF, RL = 500Ω
MIN TYP MAX
VCC = +5V ± 10%
Tamb = 0°C to +70°C
CL = 50pF, RL = 500Ω
MIN
MAX
6.0
9.5 12.0
5.5
13.0
4.0
6.0
8.0
3.5
8.5
6.0
9.0 12.0
5.5
12.5
3.5
5.5
7.5
3.0
8.0
6.0 10.0 13.5
5.5
14.0
3.5
6.5 10.5
3.0
11.0
7.0 12.0 15.0
6.0
17.0
3.5
6.5
9.5
3.0
10.0
UNIT
ns
ns
ns
ns
An or Bn
VM
tPLH
VM
tPHL
Bn or An
VM
VM
SF01132
Waveform 1. For Non-Inverting Outputs
OEBA
VM
tPLH
VM
tPHL
VM
VM
Bn
SF01138
Waveform 2. Propagation Delay, OEBA to An
OEAB
VM
tPHL
VM
tPLH
VM
VM
Bn
SF01139
Waveform 3. Propagation Delay, OEAB to Bn
1996 Jan 05
5