PCF8579 Philips Semiconductors, PCF8579 Datasheet - Page 25

• Manufacturer Part Number: PCF8579
• Description: LCD column driver for dot matrix graphic displays
• Manufacturer: Philips Semiconductors

Philips Semiconductors
13 AC CHARACTERISTICS
All timing values are referred to V
V
Note
1. Typically 0.9 to 3.3 kHz.
1997 Apr 01
f
t
I
f
t
t
t
t
t
t
t
t
t
t
t
clk
PLCD
2
SCL
SW
BUF
SU;STA
HD;STA
LOW
HIGH
r
f
SU;DAT
HD;DAT
SU;STO
DD
SYMBOL
C-bus
LCD column driver for dot matrix graphic
displays
= 2.5 to 6 V; V
clock frequency
driver delays
SCL clock frequency
tolerable spike width on bus
bus free time
START condition set-up time
START condition hold time
SCL LOW time
SCL HIGH time
SCL and SDA rise time
SCL and SDA fall time
data set-up time
data hold time
STOP condition set-up time
SS
= 0 V; V
PARAMETER
LCD
IH
= V
and V
DD
IL
3.5 V to V
levels with an input voltage swing of V
50% duty factor
V
repeated start codes only
C0 to C39
SDA
DD
Fig.17 AC test loads.
DD
V
LCD
1.5 k
CONDITIONS
(2%)
9 V; T
25
= 9 V; with test loads
amb
V DD
= 40 to +85 C; unless otherwise specified.
1 nF
MSA916
SS
4.7
4.7
4.0
4.7
4.0
250
0
4.0
MIN.
to V
DD
.
note 1
TYP.
Product specification
10
100
100
100
1.0
0.3
PCF8579
MAX.
kHz
kHz
ns
ns
ns
UNIT
s
s
s
s
s
s
s
s
s