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參數(shù)資料
| 型號： | SN54HC163FK |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-BIT SYNCHRONOUS BINARY COUNTERS |
| 中文描述： | 4位同步二進制計數(shù)器 |
| 文件頁數(shù)： | 13/24頁 |
| 文件大?。?/td> | 640K |
| 代理商： | SN54HC163FK |
SCLS298D JANUARY 1996 REVISED OCTOBER 2003
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
n-bit synchronous counters (continued)
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
TA = 25
°
C
MIN
SN54HC163
SN74HC163
UNIT
MAX
3.6
MIN
MAX
2.5
MIN
MAX
2.9
2 V
fclock
Clock frequency
4.5 V
18
12
14
MHz
6 V
21
14
17
2 V
140
200
170
tw
Pulse duration, CLK high or low
4.5 V
6 V
28
24
40
36
36
30
ns
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Note 4)
PARAMETER
FROM
(INPUT)
TO
VCC
TA = 25
°
C
MIN
3.6
SN54HC163
SN74HC163
UNIT
(OUTPUT)
MAX
MIN
2.5
MAX
MIN
2.9
MAX
2 V
fmax
4.5 V
6 V
18
21
12
14
14
17
MHz
NOTE 4: These limits apply only to applications that use more than two ’HC163 devices cascaded together.
If the ’HC163 devices are used as a single unit, or only two cascaded together, then the maximum clock
frequency that the devices can use is not limited because of the glitch. In these situations, the devices can be
operated at the maximum specifications.
A glitch can appear on RCO of a single ’HC163 device, depending on the relationship of ENT to CLK. Any
application that uses RCO to drive any input, except an ENT of another cascaded ’HC163 device, must take
this into consideration.
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