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参数资料
| 型号： | SN54HC4040WR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 计数器 |
| 英文描述： | HC/UH SERIES, ASYN NEGATIVE EDGE TRIGGERED 12-BIT UP BINARY COUNTER, CDFP16 |
| 封装： | CERAMIC, FP-16 |
| 文件页数： | 2/6页 |
| 文件大小： | 96K |
| 代理商： | SN54HC4040WR |
SN54HC4040, SN74HC4040
12-BIT ASYNCHRONOUS BINARY COUNTERS
SCLS160B – DECEMBER 1982 – REVISED MAY 1997
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagram (positive logic)
Pin numbers shown are for the D, DB, J, N, PW, and W packages.
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
95
3
2
4
13
12
14
15
1
11
10
CLR
CLK
QA
QD
QE
QH
QK
QL
QF
QG
QI
QJ
7
QB
6
QC
absolute maximum ratings over operating free-air temperature range
Supply voltage range, VCC
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1)
±20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1)
±20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC)
±25 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND
±50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 2): D package
113
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DB package
131
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package
78
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
149
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
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