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參數(shù)資料
| 型號： | MSM5547RS |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 時鐘/數(shù)據(jù)恢復及定時提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP42 |
| 封裝： | 0.600 INCH, 2.54 MM PITCH, PLASTIC, DIP-42 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 113K |
| 代理商： | MSM5547RS |
1/10
Semiconductor
MSM5547
Semiconductor
MSM5547
Digital Clock
GENERAL DESCRIPTION
MSM5547 is a clock IC having a wide power supply range with 4.194304 MHz original
oscillation. MSM5547 is a 12 hour cycle AM/PM clock for a static fluorescent character display
tube. Time correction is in hour, minute and 30 minute adjustments. Hour and minute are
corrected by a 2 Hz fast-forward function. MSM5547 also has a contrast adjustment function for
the fluorescent character display tube, which can set four levels of contrast, including 100%
duty.
FEATURES
12 hour clock (AM/PM)
Applied for static fluorescent character display tube
Wide power supply range: 4 to 16V
4.194304 MHz original oscillation
4 levels of contrast can be selected
Package options:
44-pin plastic QFP (QFP44-P-910-0.80-L2)
(Product name: MSM5547GS-L2)
42-pin plastic DIP (DIP42-P-600-2.54)
(Product name: MSM5547RS)
BLOCK DIAGRAM
OSC OUT
OSC IN
VDD
VSS
Test
adjust-
ment
Con-
trast
adjust-
ment
VDD
VSS
VDD
Oscil-
lation
Decod-
er
seg-
ment
Decod-
er
seg-
ment
Frequency dividers
1 / 60
(1 / 60)
(1 / 12)
Minute counter
Hour counter
1 Hz
AM
PM
Time
adjustment
TEST 1
CMOS
64 Hz
1 Hz
a1
b1
g3
b4
c4
AM
PM
Driver
[PCH
open
drain]
TEST 2
TEST 3
TEST 4
DIM CONT 1
DIM CONT 2
DIM
HS
MS
ZA
SE
A/C
E2W0023-39-81
This version: Aug. 1999
Previous version: Feb. 1996
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