pca8576d NXP Semiconductors, pca8576d Datasheet - Page 28

• Manufacturer Part Number: pca8576d
• Description: Automotive 40 X 4 Lcd Segment Driver For Low Multiplex Rates Up To 1 4
• Manufacturer: NXP Semiconductors

NXP Semiconductors
11. Dynamic characteristics
Table 17.
V
[1]
[2]
[3]
PCA8576D
Product data sheet
Symbol
Clock
f
f
t
t
Synchronization
t
t
t
I
Pin SCL
f
t
t
Pin SDA
t
t
Pins SCL and SDA
t
t
t
t
t
t
C
t
clk(int)
clk(ext)
clk(H)
clk(L)
PD(SYNC_N)
SYNC_NL
PD(drv)
2
SCL
LOW
HIGH
SU;DAT
HD;DAT
BUF
SU;STO
HD;STA
SU;STA
r
f
w(spike)
DD
C-bus
b
= 1.8 V to 5.5 V; V
Typical output duty factor: 50 % measured at the CLK output pin.
Not tested in production.
All timing values are valid within the operating supply voltage and ambient temperature range and are referenced to V
input voltage swing of V
[3]
Dynamic characteristics
Parameter
internal clock frequency
external clock frequency
HIGH-level clock time
LOW-level clock time
SYNC propagation delay
SYNC LOW time
driver propagation delay
SCL clock frequency
LOW period of the SCL clock
HIGH period of the SCL clock
data set-up time
data hold time
bus free time between a STOP and
START condition
set-up time for STOP condition
hold time (repeated) START condition
set-up time for a repeated START
condition
rise time of both SDA and SCL signals f
fall time of both SDA and SCL signals
capacitive load for each bus line
spike pulse width
SS
SS
= 0 V; V
to V
DD
LCD
.
= 2.5 V to 6.5 V; T
All information provided in this document is subject to legal disclaimers.
Automotive 40 x 4 LCD segment driver for low multiplex rates
Rev. 1 — 4 April 2011
Conditions
V
f
on the I
SCL
SCL
LCD
amb
= 400 kHz
< 125 kHz
= 5 V
=
2

C-bus
40

C to +85
[1]
[2]

C; unless otherwise specified.
Min
1440
960
60
60
-
1
-
-
1.3
0.6
100
0
1.3
0.6
0.6
0.6
-
-
-
-
-
Typ
1850
-
-
-
30
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PCA8576D
Max
2640
2640
-
-
-
-
30
400
-
-
-
-
-
-
-
-
0.3
400
50
0.3
1.0
© NXP B.V. 2011. All rights reserved.
IL
and V
IH
Unit
Hz
Hz
s
s
ns
s
s
kHz
s
s
ns
ns
s
s
s
s
s
s
s
pF
ns
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