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Pin Functions
No. 4365-5/29
LC5852N
Pin
I/O
QIP-64
Pin No.
Function
Option
At reset
V
DD
BAK
V
SS
1
V
SS
2
V
SS
3
CUP1
CUP2
OSC-IN
OSC-OUT
10P
S1
S2
S3
S4
M1
M2
M3
M4
I/O A1
I/O A2
I/O A3
I/O A4
I/O B1
I/O B2
I/O B3
I/O B4
P1
P2
P3
P4
ALM
LIGHT
—
—
—
—
—
—
—
Input
Output
—
Input
Input
I/O
I/O
Output
Output
Output
40
41
42
43
39
4
5
8
9
—
7
6
47
46
62
63
64
1
48
49
50
51
52
53
54
55
58
59
60
61
44
45
Power supply plus side
LSI internal logic block minus power supply
In Li specification products, connect a capacitor between BAK and V
DD
to prevent incorrect operation.
Power supply minus side
External component connections differ depending on mask options
and other factors.
In products for Ag use, connect V
SS
1 to the power supply minus side.
In other products, connect V
SS
2 to the power supply minus side.
The pins other than the minus pin are used for the LCD driver power
supply.
Connections for the LCD drive voltage boost (cut) capacitor.
Used for real-time clock and the system clock.
Connected to OSC-IN or OSC-OUT and used for the oscillator phase
compensation capacitor. Can only be used in the chip product.
Dedicated input port
Includes either a 10 (32 ms), 8 (8 ms), or 2 (2 ms) chattering
exclusion circuit (PLA mask option).
*
These values are for the case where a 32.768 kHz crystal is used.
Pull-down resistors are built in.
Dedicated input port
Input connections for acquiring data to internal RAM
Pull-down resistors are built in.
I/O port
Input connections for acquiring data to internal RAM
Output connections for data output from internal RAM
The input or output state can be switched by two instructions.
I/O port
Input connections for acquiring data to internal RAM
Output connections for data output from internal RAM
The input or output state can be switched by two instructions.
Output port
Output connections for data output from internal RAM
Dedicated output
This pin can output a signal modulated either at 4 kHz or 2 kHz, or at
4 kHz or 1 kHz under program control. Alternatively, an unmodulated
signal can be output.
*
These values are for the case where a 32.768 kHz crystal is used.
Dedicated output
This pin can drive a power transistor.
Ag specifications
Li specifications
EXT-V
specifications
Crystal oscillator
use (XT option)
Ceramic resonator
use (CF option)
The CF option can
only be specified for
EXT-V specification
products.
Inclusion
(or exclusion) of a
low level hold
transistor
Inclusion
(or exclusion) of a
low level hold
transistor
Modulated signals
(4 kHz, 2 kHz, or
unmodulated)
Modulated signals
(4 kHz, 1 kHz, or
unmodulated)
Backup flag set
Backup flag cleared
(depending on the
power supply option)
The pull-down
resistor transistor is
on.
The pull-down
resistor transistor is
on.
Input mode
Input mode
Either a high- or
low-level output.
(Undefined)
Low-level output
Low-level output
Continued on next page.