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參數(shù)資料
| 型號(hào)： | SNJ54AS869FK |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 計(jì)數(shù)器 |
| 英文描述： | AS SERIES, SYN POSITIVE EDGE TRIGGERED 8-BIT BIDIRECTIONAL BINARY COUNTER, CQCC28 |
| 封裝： | CERAMIC, CC-24 |
| 文件頁(yè)數(shù)： | 24/24頁(yè) |
| 文件大?。?/td> | 508K |
| 代理商： | SNJ54AS869FK |
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SN54AS867, SN54AS869
SN74ALS867A, SN74ALS869, SN74AS867, SN74AS869
SYNCHRONOUS 8-BIT UP/DOWN COUNTERS
SDAS115C – DECEMBER 1982 – REVISED JANUARY 1995
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 ,
TA = MIN to MAX
UNIT
(INPUT)
(OUTPUT)
SN74ALS867A
MIN
MAX
fmax
35
MHz
tPLH
CLK
RCO
4
14
ns
tPHL
CLK
RCO
4
14
ns
tPLH
CLK
Any Q
3
16
ns
tPHL
CLK
Any Q
3
16
ns
tPLH
ENT
RCO
3
14
ns
tPHL
ENT
RCO
2
9
ns
tPHL
S0 or S1 (clear mode)
Any Q
8
26
ns
tPLH
S0 or S1
RCO
4
16
ns
tPHL
(count up/down)
RCO
4
16
ns
tPLH
S0 or S1 (clear mode)
RCO
4
16
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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