UPD16488AP NEC [NEC], UPD16488AP Datasheet - Page 26

• Manufacturer Part Number: UPD16488AP
• Description: 1/92 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM
• Manufacturer: NEC [NEC]

Table 5-5 shows the relationship between the CLS pin, resistors RN and RP, and the display clock circuit.
Not connected
Not connected
Not connected
26
Connection
Connected
Connected
RN
Table 5-5. Relationship between CLS Pin/Resistors and Display Clock Circuit
Not connected
Not connected
Not connected
Connection
Connected
Connected
R
N
RP
f
R
N
f
P
R
H or L
N
Open
P
CLS
H
H
L
L
L
(A)
(C)
(E)
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC
Figure 5-8. Clock Use Examples
Clock for Normal Display
IN1
IN2
OUT
IN1
IN2
OUT
IN1
IN2
OUT
Data Sheet S15745EJ2V0DS
Internal oscillator
Internal oscillator
External clock
External clock
External clock
R
N
f
f
N
P
Divided from oscillator clock
Divided from external clock
H or L
Open
Clock for Partial Display
Internal oscillator
Internal oscillator
External clock
OSC
OSC
OSC
OSC
OSC
OSC
(B)
(D)
IN1
IN2
OUT
IN1
IN2
OUT
Use Example
(Figure 5-8)
(C)
(D)
(A)
(B)
(E)
PD16488A