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參數(shù)資料
| 型號： | MSM5547 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Digital Clock |
| 中文描述： | 數(shù)字時鐘 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 117K |
| 代理商： | MSM5547 |
1/10
Semiconductor
MSM5547
FEDL5547-03
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)
BLOCK DIAGRAM
OSC OUT
OSC IN
V
DD
V
DD
V
SS
Test
adjust-
ment
Con-
trast
adjust-
ment
V
DD
V
SS
V
SS
V
DD
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
T
TEST 1
TEST 2
TEST 3
CMOS
64 Hz
1 Hz
a
1
b
1
g
3
b
4
c
AM
PM
D
TEST 4
DIM CONT 1
DIM CONT 2
DIM
HS
MS
ZA
SE
A/C
FEDL5547-03
This version: May. 2000
Previous version: Nov. 1999
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| MSM56V16400D-12TS-K | 2-Bank X 2,097,152-Word X 4-Bit SYNCHRONOUS DYNAMIC RAM |
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| MSM56V16400D-10TS-K | 2-Bank X 2,097,152-Word X 4-Bit SYNCHRONOUS DYNAMIC RAM |
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