參數(shù)資料
型號(hào): 933858990623
廠(chǎng)商: NXP SEMICONDUCTORS
元件分類(lèi): 總線(xiàn)收發(fā)器
英文描述: F/FAST SERIES, OCTAL 1-BIT DRIVER, TRUE OUTPUT, PDSO24
封裝: 7.50 MM, PLASTIC, MS-013, SOT-137-1, SO-24
文件頁(yè)數(shù): 8/10頁(yè)
文件大小: 89K
代理商: 933858990623
Philips Semiconductors
Product specification
74F656A
Octal buffer/driver with parity, non-inverting (3-State)
2000 Jun 30
7
AC WAVEFORMS
SF00965
VM
tPHL
tPLH
Dn
SE, SO, Qn
Waveform 1. Propagation Delay, Non-Inverting Outputs
SF00966
VM
tPHL
tPLH
Dn
SE, SO, Qn
Waveform 2. Propagation Delay, Inverting Outputs
VM
tPHZ
tPZH
VOH -0.3V
0V
OEn
SF00967
SE, SO, Qn, Qn
Waveform 3. 3-State Output Enable Time to High Level
and Output Disable Time from High Level
VM
tPLZ
tPZL
VOL +0.3V
OEn
SF00968
SE, SO, Qn, Qn
Waveform 4. 3-State Output Enable Time to Low Level
and Output Disable Time from Low Level
TEST CIRCUIT AND WAVEFORM
tw
90%
VM
10%
90%
VM
10%
90%
VM
10%
90%
VM
10%
NEGATIVE
PULSE
POSITIVE
PULSE
tw
AMP (V)
0V
tTHL (tf )
INPUT PULSE REQUIREMENTS
rep. rate
tw
tTLH
tTHL
1MHz
500ns
2.5ns
Input Pulse Definition
VCC
family
74F
D.U.T.
PULSE
GENERATOR
RL
CL
RT
VIN
VOUT
Test Circuit for 3-State Outputs
DEFINITIONS:
RL = Load resistor;
see AC electrical characteristics for value.
CL = Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
tTHL (tf )
tTLH (tr )
AMP (V)
amplitude
3.0V
1.5V
VM
RL
7.0V
SF00777
TEST
SWITCH
tPLZ
closed
tPZL
closed
All other
open
SWITCH POSITION
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