參數(shù)資料
型號(hào)： NT7502H-TABF1
廠商： Electronic Theatre Controls, Inc.
英文描述： 65 X 132 RAM-Map LCD Controller / Driver
中文描述： 65 × 132 RAM的地圖LCD控制器/驅(qū)動(dòng)器
文件頁(yè)數(shù)： 1/54頁(yè)
文件大?。?/td> 687K
代理商： NT7502H-TABF1
NT7502
65 X 132 RAM-Map LCD Controller / Driver
Features
!
Direct RAM data display using the display RAM. When
RAM data bit is 0, it is not displayed. When RAM data bit
is 1, it is displayed. (At normal display)
!
RAM capacity: 65 X 132 = 8580 bits
!
Many command functions: Read/Write Display Data.
Display ON/OFF. Normal/Reverse Display. Page
Address Set. Set Display Start Line. Set LCD Bias,
Electronic contrast Controls, V0 voltage regulation
internal resistor ratio set, Read Modify Write, Select
Segment Driver Direction, Power Save
!
High-speed 8-bit microprocessor interface allowing direct
connection to both the 8080 and 6800
!
Serial interface
!
Power supply voltage: 2.4 - 3.5V
!
Maximum 12V LCD driving output voltage
!
2X / 3X / 4X on chip DC-DC converter
!
Voltage regulator
!
Voltage follower
!
On-chip oscillator
General Description
The NT7502 is a single-chip LCD driver for dot-matrix liquid
crystal displays which is directly connectable to a
microcomputer bus. It accepts 8-bit serial or parallel display
data directly sent from a microcomputer and stores it in an
on-chip display RAM. It generates a LCD drive signal
independent of the microprocessor clock.
The set of the on-chip display RAM of 65 X 132 bits and a
one-to-one correspondence between LCD panel pixel dots
and on-chip RAM bits permit implementation of displays with
a high degree of freedom.
The NT7502 contains 65 common output circuits and 132
segment output circuits, so that a single chip of NT7502 can
make 65 X 132, 55 X 132, 49 X 132 and 33 X 132 dot
displays with pad option (DUTY1, DUTY0).
No external operation clock is required for RAM read/write
operations. Accordingly, this driver can be operated with a
minimum
current
consumption
low-current-consumption liquid crystal power supply can
implement a high-performance handy display system with
minimum current consumption and the smallest LSI
configuration.
and
its
onboard
Pin Configuration
NT7502H-TABF1
(Copper Side View)
V
C
C
R
A
W
R
D
D
D
D
D
D
D
D
D
0
1
V
V
V
V
N
C
+
-
C
C
+
-
V
V
V
V
N
V
V
M
C
C
P
H
N
N
N
N
F
C
D
N
I
+
4
4
4
4
4
4
4
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
4
2
2
2
2
2
C
C
C
F
F
2
2
2
2
2
S
S
C
C
C
7
7
8
8
8
8
C
C
C
S
S
S
4
5
5
4
C
C
C
C
1
V1.0
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