參數(shù)資料
型號(hào): UPD7225
廠(chǎng)商: NEC Corp.
英文描述: PROGRAMMABLE LCD CONTROLLER/DRIVER
中文描述: 可編程LCD控制器/驅(qū)動(dòng)
文件頁(yè)數(shù): 11/52頁(yè)
文件大?。?/td> 289K
代理商: UPD7225
Data Sheet S14308EJ6V0DS00
11
μ
PD7225
Figure 2-2. 14-Segment LCD
The 14-segment type LCD can be used only in the divide-by-4 time division mode. For the 14-segment LCD type,
connect segments and commons as follows:
SEGn + 3
SEGn + 2
SEGn + 1 SEGn
COM3
COM2
COM1
COM0
a
d
b
i
h
g
f
c
n
m
l
k
j
e
DP
SEGn
SEGn + 1
SEGn + 2
SEGn + 3
COM0
COM1
COM2
COM3
: h, i, k, n
: d, e, f
: a, b, c, DP
: g, j, l, m
: a, g, h
: b, i, j, f
: c, e, k, l
: d, m, n, DP
The following shows the input data and display pattern, and the configuration of the display data which is
automatically written into the data memory. For the 7-segment type, the lower 4 bits (D3 to D0) are decoded. For the
14-segment type, the input data and display pattern correspond to 8-bit ASCII code. The first address to which the
display data is written is indicated as address N.
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