參數(shù)資料
型號(hào)： PCF8820U
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 顯示驅(qū)動(dòng)器
英文描述： 67 x 101 Grey-scale/ECB colour dot matrix LCD driver
中文描述： LIQUID CRYSTAL DISPLAY DRIVER, UUC235
封裝： BUMP, DIE-235
文件頁(yè)數(shù)： 34/60頁(yè)
文件大?。?/td> 316K
代理商： PCF8820U
2000 Dec 07
34
Philips Semiconductors
Product specification
67
×
101 Grey-scale/ECB colour dot matrix
LCD driver
PCF8820
12 TIMING
V
DD1
= 2.5 to 5.5 V; V
DD2
= V
DD3
= 2.7 to 5.5 V; V
SS1
= V
SS2
= 0 V; V
LCDIN
= 4.5 to 14.5 V; T
amb
=
40
°
C to +85
°
C;
unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Clock signal
f
frame
f
frame(cal1)
LCD frame frequency
LCD frame frequency
not calibrated; note 1
calibrated; accurate calibration
timing of 190
μ
s; note 2
calibrated; accurate calibration
timing of 190
μ
s
not calibrated; note 3
44
68
77
77
158
91
Hz
Hz
f
frame(cal2)
LCD frame frequency
63
77
96
Hz
f
osc
P
AD
OSC
oscillator frequency
190
336
670
kHz
f
ext
Reset timing;
see Fig.24
external clock frequency
not calibrated
190
336
670
kHz
P
AD
RES
t
WL
t
WH
t
W(spike)
reset pulse width LOW
reset pulse width HIGH
tolerable spike width on RES
input
reset-LOW pulse set-up time
after power-on
end of reset to interface being
operational
1.0
1.5
10
μ
s
μ
s
ns
t
su
V
DD
= 2.75 V; note 4
30
μ
s
t
oper
3
μ
s
LCD on and off timing;
see Fig.25
P
AD
V
LCDIN
t
LCD(on)
t
LCD(off)
external LCD turn-on time
external LCD turn-off time
after V
DD1
turns on
before V
DD1
turns off
1
1
ms
ms
I
2
C-bus timing;
see Fig.26; note 5
P
ADS
SCL and SDA
f
SCL
t
LOW
t
HIGH
t
SU;DAT
t
HD;DAT
t
r
t
f
C
b
SCL clock frequency
SCL LOW time
SCL HIGH time
data set-up time
data hold time
rise time SDA and SCL
fall time SDA and SCL
capacitive load represented by
each bus line
set-up time repeated START
hold time START condition
0
1.3
0.6
100
0
20 + 0.1 C
b
20 + 0.1 C
b
400
0.9
300
300
400
kHz
μ
s
μ
s
ns
μ
s
ns
ns
pF
note 6
note 6
t
SU;STA
t
HD;STA
0.6
0.6
μ
s
μ
s
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