PCF8579T NXP Semiconductors, PCF8579T Datasheet - Page 26

• Manufacturer Part Number: PCF8579T
• Manufacturer: NXP Semiconductors

Specifications of PCF8579T

• Operating Supply Voltage (typ): 3.3/5V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: VSO
• Pin Count: 56
• Mounting: Surface Mount
• Power Dissipation: 400mW
• Operating Supply Voltage (min): 2.5V
• Operating Supply Voltage (max): 6V
• Lead Free Status / Rohs Status: Not Compliant

NXP Semiconductors
11. Dynamic characteristics
Table 15.
All timing values are referenced to V
V
[1]
PCF8579_5
Product data sheet
Symbol
f
t
I
f
t
t
t
t
t
t
t
t
t
t
t
clk
PD(drv)
2
SCL
w(spike)
BUF
SU;STA
HD;STA
LOW
HIGH
r
f
SU;DAT
HD;DAT
SU;STO
LCD
C-bus
Typically 0.9 kHz to 3.3 kHz.
= V
DD
Dynamic characteristics
Parameter
clock frequency
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
Fig 19. Driver timing waveforms
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
50 % duty factor
V
with test load of 45 pF
DD
Rev. 05 — 11 May 2009
V
LCD
= 9 V;
LCD column driver for dot matrix graphic displays
[1]
Min
-
-
-
-
4.7
4.7
4.0
4.7
4.0
-
-
250
0
4.0
SS
to V
DD
Typ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
. V
DD
= 2.5 V to 6 V; V
PCF8579
Max
10
100
100
100
-
-
-
-
-
1
0.3
-
-
-
© NXP B.V. 2009. All rights reserved.
SS
Unit
kHz
kHz
ns
ns
ns
26 of 41
s
s
s
s
s
s
s
s
s
= 0 V;