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74F189 数据表(PDF) 5 Page - NXP Semiconductors

部件名 74F189
功能描述  64-bit TTL bipolar RAM, inverting 3-State
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

74F189 数据表(HTML) 5 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74F189A
64-bit TTL bipolar RAM, inverting (3-State)
1990 Feb 23
5
AC ELECTRICAL CHARACTERISTICS
LIMITS
Tamb = +25°C
Tamb = 0°C to +70°C
SYMBOL
PARAMETER
TEST
VCC = +5.0V
VCC = +5.0V ± 10%
UNIT
CONDITION
CL = 50pF, RL = 500
CL = 50pF, RL = 500
MIN
TYP
MAX
MIN
MAX
tPLH
tPHL
Access time
Propagation delay
An to Qn
Waveform 1
2.5
2.0
5.0
4.5
8.0
8.0
2.5
2.0
8.0
8.0
ns
tPZH
tPZL
Enable time
CE to Qn
Waveform 2
2.0
2.0
3.5
4.0
6.0
7.0
1.5
2.0
7.0
7.5
ns
tPHZ
tPLZ
Disable time
CE to Qn
Waveform 3
2.5
1.5
4.5
3.0
7.0
5.5
2.0
1.5
8.0
6.0
ns
tPZH
tPZL
Write recovery time
Enable time
WE to Qn
Waveform 4
2.0
2.5
4.0
4.5
6.5
7.5
2.0
2.5
7.0
8.0
ns
tPHZ
tPLZ
Disable time
WE to Qn
Waveform 4
3.5
1.5
5.5
3.5
8.5
6.5
3.0
1.5
9.0
7.0
ns
AC SETUP REQUIREMENT
LIMITS
Tamb = +25°C
Tamb = 0°C to +70°C
SYMBOL
PARAMETER
TEST
VCC = +5.0V
VCC = +5.0V ± 10%
UNIT
CONDITION
CL = 50pF, RL = 500
CL = 50pF, RL = 500
MIN
TYP
MAX
MIN
MAX
tsu(H)
tsu(L)
Setup time, high or low
An to WE
Waveform 4
4.5
4.5
5.0
5.0
ns
th(H)
th(L)
Hold time, high or low
An to WE
Waveform 4
0
0
0
0
ns
tsu(H)
tsu(L)
Setup time, high or low
Dn to WE
Waveform 4
7.5
6.5
9.0
8.0
ns
th(H)
th(L)
Hold time, high or low
Dn to WE
Waveform 4
0
0
0
0
ns
tsu(L)
Setup time, low
CE (falling edge) to WE (falling edge)
Waveform 4
0
0
ns
th(L)
Hold time, low
WE (falling edge) to WE (rising edge)
Waveform 4
6.5
7.5
ns
tw(L)
Pulse width, low
WE
Waveform 4
7.0
8.0
ns
AC WAVEFORMS FOR READ CYCLES
VM
VM
Qn
An
tPHL
tPLH
NOTE:
For all waveforms, VM = 1.5V.
SF00303
Waveform 1. Read cycle, address access time


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