參數(shù)資料
型號(hào): PCF8577C
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 顯示驅(qū)動(dòng)器
英文描述: LCD direct/duplex driver with I2C-bus interface
中文描述: LIQUID CRYSTAL DISPLAY DRIVER, PDSO40
文件頁(yè)數(shù): 14/28頁(yè)
文件大?。?/td> 175K
代理商: PCF8577C
1998 Jul 30
14
Philips Semiconductors
Product specification
LCD direct/duplex driver with
I
2
C-bus interface
PCF8577C
11 AC CHARACTERISTICS
V
DD
= 2.5 to 6 V; T
amb
=
40 to 85
°
C; unless otherwise specified. All the timing values are valid within the operating
supply voltage and ambient temperature range and refer to V
IL
and V
IH
with an input voltage swing of V
SS
to V
DD
.
Note
1.
Typical conditions: V
DD
= 5 V; T
amb
= 25
°
C.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
(1)
MAX.
UNIT
f
LCD
t
BS
display frequency
driver delays with test loads
C
osc
= 680 pF; R
osc
= 1 M
V
DD
= 5 V
65
90
20
120
100
Hz
μ
s
I
2
C-bus
f
SCL
t
SW
t
BUF
t
SU;STA
t
HD;STA
t
LOW
t
HIGH
t
r
t
f
t
SU;DAT
t
HD;DAT
t
SU;STO
SCL clock frequency
tolerable spike width on I
2
C-bus T
amb
= 25
°
C
I
2
C-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
4.7
4.0
4.0
4.7
4.0
250
0
4.0
100
100
1.0
0.3
kHz
ns
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
ns
ns
μ
s
Fig.12 Test loads.
MGA730
1.5 k
6.8 k
VDD
(VDD
SS
S32 to S1
(pins 1 to 32)
SCL, SDA
(pins 39, 40)
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