參數(shù)資料
型號(hào)： LC5852N
廠商： Sanyo Electric Co.,Ltd.
英文描述： Four-Bit Single-Chip Microcontroller with On-Chip LCD Drivers for Small-Scale Control in Medium-Speed Applications(應(yīng)用于中等速率中小規(guī)?？刂频?位微控制器（帶片上LCD驅(qū)動(dòng)器）)
中文描述： 4位單片微控制器，帶有片上LCD驅(qū)動(dòng)器的小規(guī)?？刂圃谥兴賾?yīng)用（應(yīng)用于中等速率中小規(guī)模控制的4位微控制器（帶片上液晶驅(qū)動(dòng)器））
文件頁(yè)數(shù)： 6/29頁(yè)
文件大?。?/td> 356K
代理商： LC5852N
Continued from preceding page.
No. 4365-6/29
LC5852N
Pin
I/O
QIP-64
Pin No.
Function
Option
At reset
RES
INT
TESTA
TEST
Seg1
Seg2 to
Seg25
COM1
COM2
COM3
COM4
Input
Input
Input
—
Output
Output
56
57
2
3
11
12 to36
10
38
37
24
LSI internal reset input
Reset can be performed on either a high or low input level.
Built-in pull-up or pull-down resistor
Note: The applied signal must be held for at least 500 μs.
External interrupt request input
Interrupt detection can be performed for either falling or rising edges.
Built-in pull-up or pull-down resistor
Test input
QIP-64 products: connect to the power supply – side
Chip products: Leave open or connect to the power supply – side
Test input
This pin must be left open. (It cannot be used in user systems.)
LCD drive/general-purpose output pins
— LCD drive
I
STATIC
II
1/2 bias – 1/2 duty
III
1/2 bias – 1/3 duty
IV
1/2 bias – 1/4 duty
V
1/3 bias – 1/3 duty
VI
1/3 bias – 1/4 duty
Items
I
to
V
are specified as master options.
General-purpose output mode (CMOS output)
— LCD/general-purpose output control under program control is
disabled by adoption of the segment PLA.
— Arbitrary combinations of LCD drive and general purpose outputs
are possible.
LCD common polarity drive outputs
These pins are used as follows depending on the LCD drive method
used.
(Note that these are typical specifications for 32.768 kHz when 0 is
used for the alternation frequency.)
Note: An
×
indicates that the corrsponding common pin is not used
with that LCD drive method.
LCD drive type. Do not use hold mode in CF specification
products that use the LCD driver.
(The alternation frequency signal is stopped in hold mode.)
Pull-up or pull-down
resistor selection
Pull-up or pull-
down resistor
selection
Signal change
type (rising or
falling) selection
Switching between
LCD drive outputs
and general-
purpose outputs
LCD drive method
switching
— STATIC
— 1/2 bias –
1/2 duty
— 1/2 bias –
1/3 duty
— 1/2 bias –
1/4 duty
— 1/3 bias –
1/3 duty
— 1/3 bias –
1/4 duty
General-purpose
outputs
— CMOS
LCD drive
— All segments
lit
— All segments
off
*
Set by a mask
option
General-purpose
outputs
— High level
— Low level
*
Set by a mask
option
Static
1/2 duty
1/3 duty
1/4 duty
COM1
COM2
COM3
COM4
H
×
×
×
H
H
×
×
H
H
H
×
H
H
H
H
Alternation
frequency
32 Hz
32 Hz
42.7 Hz
32 Hz
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