參數(shù)資料
型號(hào): PCF1171C
廠商: NXP Semiconductors N.V.
英文描述: 4-digit LCD car clock(4數(shù)字LCD汽車時(shí)鐘)
中文描述: 4位LCD汽車時(shí)鐘(4數(shù)字液晶汽車時(shí)鐘)
文件頁數(shù): 6/16頁
文件大小: 112K
代理商: PCF1171C
1997 Apr 16
6
Philips Semiconductors
Product specification
4-digit LCD car clock
PCF1171C
CHARACTERISTICS
V
DD
= 5 V; V
SS
= 0 V; T
amb
=
40 to +85
°
C; crystal: f = 4.194304 MHz; R
s
= 50
; C
L
= 12 pF; unless otherwise
specified.
Notes
1.
2.
The current I
EXT
= I
REG
+ I
DD
+ 2
×
I
i
(+ LCD current).
For correct operation of the oscillator: V
DD
3 V.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
V
DD
supply voltage
external regulation
internal regulation
regulation current with
internal regulation
current consumption
3
4
0.2
5
6
6
5
V
V
mA
I
REG
= 1 mA
I
REG
I
DD
all switches open; without LCD;
internal regulation
disconnected; note 1
I
REG
= 1 mA
50
400
700
μ
A
r
o
differential internal impedance
150
Oscillator (pins 1 and 2)
(see note 2)
t
osc
f/f
osc
R
fb
C
i
C
o
start time
frequency stability
feedback resistance
input capacitance
output capacitance
0.1
19
0.2
×
10
6
1
×
10
6
24
200
ms
V
DD
= 100 mV
1
9
29
M
pF
pF
Switches S1, S2 and S3 (pins 18, 3 and 4) and test inputs, TS, TR (pins 38 and 39)
I
i
t
d
R
S
input current
debounce time
segment driver output
resistance
backplane driver output
resistance
backplane driver output
frequency
LCD DC offset voltage
with inputs connected to V
SS
50
32
150
1
500
150
2.5
μ
A
ms
k
I
L
=
±
50
μ
A
R
BP
I
L
=
±
250
μ
A
0.2
0.5
k
f
BP
64
Hz
V
offset(DC)
R
L
= 200 k
; C
L
= 1 nF
±
50
mV
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