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74F821 bảng dữ liệu(PDF) 12 Page - NXP Semiconductors

tên linh kiện 74F821
Giải thích chi tiết về linh kiện  Bus interface registers
PDF  18 Pages
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nhà sản xuất  PHILIPS [NXP Semiconductors]
Trang chủ  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74F821 bảng dữ liệu(HTML) 12 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74F821/822/823/824/825/826
Bus interface registers
1996 Jan 05
12
AC ELECTRICAL CHARACTERISTICS FOR 74F823
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
Tamb = +25°C
VCC = +5.0V
CL = 50pF
RL = 500Ω
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF
RL = 500Ω
Tamb = –40°C to +85°C
VCC = +5.0V ± 10%
CL = 50pF
RL = 500Ω
UNIT
MIN
TYP
MAX
MIN
MAX
MIN
MAX
fmax
Maximum clock frequency
Waveform 1
150
180
140
130
ns
tPLH
tPHL
Propagation delay
CP to Qn or Qn
Waveform 1
4.0
4.0
6.5
6.0
8.5
8.5
4.0
3.5
9.5
9.0
4.0
3.5
10.0
9.0
ns
tPHL
Propagation delay
MR to Qn or Qn
Waveform 2
3.0
5.0
8.0
3.0
8.0
3.0
8.5
ns
tPZH
tPZL
Output enable time
OEn to Qn or Qn
Waveform 4
Waveform 5
2.0
3.0
4.5
5.0
8.0
8.0
2.0
2.5
9.0
9.0
2.0
2.5
11.0
9.0
ns
tPHZ
tPLZ
Output disable time
OEn to Qn or Qn
Waveform 4
Waveform 5
1.5
1.5
3.5
3.5
6.5
6.5
1.5
1.5
7.5
7.5
1.5
1.5
8.5
8.5
ns
AC SETUP REQUIREMENTS FOR 74F823
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
Tamb = +25°C
VCC = +5.0V
CL = 50pF
RL = 500Ω
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF
RL = 500Ω
Tamb = –40°C to +85°C
VCC = +5.0V ± 10%
CL = 50pF
RL = 500Ω
UNIT
MIN
TYP
MAX
MIN
MAX
MIN
MAX
tsu (H)
tsu (L)
Setup time, high or low
Dn to CP
Waveform 3
1.0
1.0
1.0
1.0
2.0
1.5
ns
th (H)
th (L)
Hold time, high or low
Dn to CP
Waveform 3
2.0
2.0
2.0
2.0
2.5
2.0
ns
tw (H)
tw (L)
CP Pulse width,
high or low
Waveform 1
3.5
3.5
4.0
4.0
4.0
4.0
ns
tsu (H)
tsu (L)
Setup time, high or low,
CE to CP
Waveform 3
0.0
2.0
0.0
2.0
0.0
2.0
ns
th (H)
th (L)
Hold time, high or low
CE to CP
Waveform 3
0.0
3.0
0.0
3.5
1.5
4.0
ns
tw (L)
MR Pulse width,
low
Waveform 2
4.5
4.5
4.5
ns
trec
Recovery time,
MR to CP
Waveform 2
2.5
2.5
2.5
ns



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