PCF8531U2D NXP [NXP Semiconductors], PCF8531U2D Datasheet - Page 35

• Manufacturer Part Number: PCF8531U2D
• Description: 34 x 128 pixel matrix driver Single-chip LCD controller and driver
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
14. Dynamic characteristics
Table 16.
V
T
[1]
[2]
[3]
[4]
PCF8531
Product data sheet
Symbol
f
f
f
t
t
Serial bus interface (see
f
t
t
t
t
t
t
C
t
t
t
t
t
fr(LCD)
osc
clk(ext)
w(RESL)
su(RESL)
SCL
LOW
HIGH
SU;DAT
HD;DAT
r
f
SU;STA
HD;STA
SU;STO
SP
BUF
amb
DD1
b
As the programming range for the internally generated V
while setting the VOP register and selecting the temperature compensation, that the V
under all conditions and including all tolerances.
LCD outputs are open circuit, inputs at V
V
V
V
Resets all logic when V
I
V
f
A reset is generated if t
All timing values are valid within the operating supply voltage and ambient temperature range and are referenced to V
input voltage swing of V
C
load
fr
=
= 1.8 V (1.9 V) to 5.5 V; V
DD1
DD1
DD1
LCD
b
= f
−
= total capacitance of one bus line in pF.
≤ 50 μA; outputs are tested one at a time.
40
clk(ext)
to V
to V
to V
≤ 7.7 V.
°
Dynamic characteristics
C to +85
DD3
DD3
DD3
Parameter
LCD frame frequency
oscillator frequency
external clock frequency
RES LOW pulse width
RES LOW set-up time
SCL clock frequency
LOW period of the SCL clock
HIGH period of the SCL clock
data set-up time
data hold time
rise time of both SDA and SCL signals
fall time of both SDA and SCL signals
capacitive load for each bus line
set-up time for a repeated START condition
hold time (repeated) START condition
set-up time for STOP condition
pulse width of spikes that must be
suppressed by the input filter
bus free time between a STOP and START
condition
/480 or f
= 2.75 V; V
= 2.85 V; V
= 2.75 V; V
osc
°
C; unless otherwise specified.
/480.
w(RESL)
DD1
SS
LCD
LCD
LCD
Figure
to V
< V
= 3.5 V; f
= 7.0 V; voltage multiplier = 3 × V
= 9.0 V; f
DD2
POR
> 3 ns (see
DD
.
22)
.
and V
[3]
osc
osc
DD
= 34 kHz.
= 34 kHz.
DD3
Figure
All information provided in this document is subject to legal disclaimers.
or V
= 2.5 V to 4.5 V; V
SS
21).
; bus inactive.
Rev. 6 — 16 May 2011
LCD
allows values above the maximum allowed V
Conditions
V
on bus
DD
DD
; f
= 3.0 V
osc
SS1
= 34 kHz.
= V
SS2
= 0 V; V
[1]
[2]
[4]
[4]
Min
40
20
20
300
-
0
1.3
0.6
100
0
20 + 0.1C
20 + 0.1C
-
0.6
0.6
0.6
-
1.3
LCD
DD1
maximum limit of 9 V will never be exceeded
to V
b
b
DD3
Typ
66
34
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
34 x 128 pixel matrix driver
≤
V
LCD
LCD
, the user must ensure,
≤
PCF8531
Max
135
65
65
-
30
400
-
-
-
0.9
0.3
0.3
400
-
-
-
50
-
9.0 V;
© NXP B.V. 2011. All rights reserved.
IL
and V
IH
Unit
Hz
kHz
kHz
ns
μs
kHz
μs
μs
ns
ns
μs
μs
pF
μs
μs
μs
ns
μs
, with an
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