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參數(shù)資料
| 型號(hào)： | 930105002 |
| 廠商： | ATMEL CORP |
| 元件分類： | SRAM |
| 英文描述： | 8K X 16 DUAL-PORT SRAM, 45 ns, QFP84 |
| 封裝： | 1.150 X 1.150 INCH, MQFP-84 |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大?。?/td> | 686K |
| 代理商： | 930105002 |
December 1990
6
Philips Semiconductors
Product specication
8-bit serial-in/parallel-out shift register
74HC/HCT164
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
Note to HCT types
The value of additional quiescent supply current (
ICC) for a unit load of 1 is given in the family specifications.
To determine
ICC per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
INPUT
UNIT LOAD COEFFICIENT
Dsa,Dsb
CP
MR
0.25
0.60
0.90
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT
VCC
(V)
WAVEFORMS
+25
40 to +85
40 to +125
min.
typ.
max.
min.
max.
min.
max.
tPHL/ tPLH
propagation delay
CP to Qn
17
36
45
54
ns
4.5
Fig.6
tPHL
propagation delay
MR to Qn
19
38
48
57
ns
4.5
Fig.6
tTHL/ tTLH
output transition time
7
15
19
22
ns
4.5
Fig.6
tW
clock pulse width
HIGH or LOW
18
7
23
27
ns
4.5
Fig.6
tW
master reset pulse
width; LOW
18
10
23
27
ns
4.5
Fig.6
trem
removal time
MR to CP
16
7
20
24
ns
4.5
Fig.6
tsu
set-up time
Dsa,Dsb to CP
12
6
15
18
ns
4.5
Fig.6
th
hold time
Dsa,Dsb to CP
4
2
4
ns
4.5
Fig.6
fmax
maximum clock pulse
frequency
27
55
22
18
MHz
4.5
Fig.6
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