pcf8812 NXP Semiconductors, pcf8812 Datasheet - Page 21

• Manufacturer Part Number: pcf8812
• Description: 65 X 102 Pixels Matrix Lcd Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Notes
1. The maximum possible V
2. Internal clock.
3. f
4. During power-down all static currents are switched off.
5. If external V
6. Tolerance depends on the temperature; (typical null at T
7. For TC1 to TC3.
14 AC CHARACTERISTICS
V
2004 Feb 23
LCD supply voltage generator
V
TC
f
f
f
t
t
Serial bus timing characteristics; see Fig.15
f
t
t
t
t
t
t
OSC
clk(ext)
frame
VHRL
RW
SCLK
cyc(clk)
PWH1
PWL1
S2
H2
PWH2
DD
SYMBOL
SYMBOL
LCD(tol)
65
voltage generator, temperature and (display) load.
the temperature range limit, maximum tolerance is proportional to V
SCLK
= 2.5 to 5.5 V; V
= 0 means no serial clock.
102 pixels matrix LCD driver
V
generated
V
oscillator frequency
external clock frequency
frame frequency
V
RES LOW pulse width
clock frequency
clock cycle time
SCLK pulse width HIGH
SCLK pulse width LOW
SCE set-up time
SCE hold time
SCE minimum HIGH time
LCD
LCD
LCD
DD
; the display load current is not transmitted to I
to RES LOW
tolerance internally
temperature coefficient V
SS
PARAMETER
PARAMETER
= 0 V; V
LCD
LCD
voltage that may be generated is dependent on the supply voltage to the internal
= 4.5 to 9.0 V; T
V
f
display load = 10 A;
notes 3, 6 and 7
T
display load = 10 A; note 3
V
f
see Fig.16
see Fig.16
V
based on 20 % to 80 % of V
maximum rise and fall time of 10 ns
SCLK
OSC
amb
DD1
DD1
DD1
DD1
coefficient 0
coefficient 1
coefficient 2
coefficient 3
or f
= 20 to +70 C;
= 2.8 V; V
= 2.8 V; f
= 2.8 V; T
= 3.0 V 10 %; all signal timing is
= 0; T
amb
CONDITIONS
clk(ext)
= 40 to +85 C; unless otherwise specified.
amb
CONDITIONS
21
= 38 kHz; note 1
SCLK
amb
amb
LCD
= 25 C;
= 27 C, maximum tolerance values are measured at
= 20 to +70 C
= 7.6 V;
= 0;
DD
.
LCD
DD
).
and a
300
MIN.
0
0
0
22
20
0
500
250
100
100
60
100
100
MIN.
0.76
1.05
2.10
10
TYP.
3
38
38
73
10
10
10
TYP.
Product specification
3
3
3
PCF8812
+300
67
67
1
4.0
MAX.
MAX.
mV
1/ C
1/ C
1/ C
1/ C
kHz
kHz
Hz
ns
MHz
ns
ns
ns
ns
ns
ns
UNIT
UNIT
s