PCF8578T/1 NXP Semiconductors, PCF8578T/1 Datasheet - Page 30

• Manufacturer Part Number: PCF8578T/1
• Description: IC, LCD DRIVER, ROW/COLUMN, 56VSOP
• Manufacturer: NXP Semiconductors

Specifications of PCF8578T/1

• Supply Current: 20µA
• No. Of Digits / Alpha: 36
• Meter Display Type: LCD
• Supply Voltage Range: 2.5V To 6V
• Driver Case Style: VSOP
• No. Of Pins: 56
• Operating Temperature Range: -40°C To +85°C
• Base: RoHS Compliant
• No. Of Segments: 384
• Interface Type: I2C
• Rohs Compliant: Yes

NXP Semiconductors
11. Dynamic characteristics
Table 18.
All timing values are referenced to V
V
PCF8578_6
Product data sheet
Symbol
f
t
t
I
f
t
t
t
t
t
t
t
t
t
t
t
clk
PD(SYNC_N)
PD(drv)
2
SCL
w(spike)
BUF
SU;STA
HD;STA
LOW
HIGH
r
f
SU;DAT
HD;DAT
SU;STO
LCD
C-bus
= V
DD
Dynamic characteristics
Parameter
clock frequency
SYNC propagation delay
driver propagation delay
SCL clock frequency
spike pulse width
bus free time between a STOP
and START condition
set-up time for a repeated START
condition
hold time (repeated) START
condition
LOW period of the SCL clock
HIGH period of the SCL clock
rise time of both SDA and SCL
signals
fall time of both SDA and SCL
signals
data set-up time
data hold time
set-up time for STOP condition
3.5 V to V
DD
9 V; T
amb
IH
and V
= 40 C to +85 C; unless otherwise specified.
IL
levels with an input voltage swing of V
Conditions
at multiplex rate 1:8, 1:16
and 1:32;
R
V
at multiplex rate 1:24;
R
V
V
with test load of 45 pF
DD
DD
DD
ext(OSC)
ext(OSC)
Rev. 06 — 5 May 2009
= 6 V
= 6 V
V
LCD
= 330 k ;
= 330 k ;
LCD row/column driver for dot matrix graphic displays
= 9 V;
Min
1.2
0.9
-
-
-
-
4.7
4.7
4.0
4.7
4.0
-
-
250
0
4.0
SS
to V
DD
Typ
2.1
1.6
-
-
-
-
-
-
4.0
-
-
-
-
-
-
-
. V
DD
= 2.5 V to 6 V; V
PCF8578
Max
3.3
2.5
500
100
100
100
-
-
-
-
-
1
0.3
-
-
-
© NXP B.V. 2009. All rights reserved.
SS
Unit
kHz
kHz
ns
kHz
ns
ns
ns
30 of 46
s
s
s
s
s
s
s
s
s
= 0 V;