HT1632C Просмотр технического описания (PDF) - Holtek Semiconductor
Номер в каталоге
Компоненты Описание
производитель
HT1632C Datasheet PDF : 24 Pages
| |||
HT1632C
A.C. Characteristics
VDD=2.4V~5.5V, Ta=25°C (Unless otherwise specified)
Symbol
Parameter
fSYS
System Clock
fLED
LED Duty Cycle & Frame
Frequency
Test Conditions
VDD
Conditions
Min.
Typ.
Max. Unit
5V On-chip RC oscillator 230
256
282 kHz
5V 1/8 duty
¾ fSYS/2624 ¾
Hz
5V 1/16 duty
¾ fSYS/2624 ¾
Hz
fCLK1
fCLK2
Serial Data Clock (WR pin)
Serial Data Clock (RD pin)
5V Duty cycle 50%
5V Duty cycle 50%
¾
¾
1
MHz
¾
¾
500 kHz
tCS
Serial Interface Reset Pulse
Width
¾ CS
250
¾
¾
ns
Write mode
tCLK
WR, RD Input Pulse Width
5V
Read mode
0.5
¾
¾
ms
1.0
¾
¾
tr, tf
Rise/Fall Time Serial Data
Clock Width (Figure 1)
¾
¾
¾
50
100
ns
tsu
Setup Time for DATA to WR,
RD Clock Width (Figure 2)
¾
¾
50
100
¾
ns
th
Hold Time for DATA to WR, RD,
Clock Width (Figure 2)
¾
¾
100
200
¾
ns
tsu1
Setup Time for CS to WR, RD,
Clock Width (Figure 3)
¾
¾
200
300
¾
ns
th1
Hold Time for CS to WR, RD,
Clock Width (Figure 3)
¾
¾
100
200
¾
ns
tod
Data Output Delay Time
(Figure 4)
¾
¾
¾
100
200
ns
tf
tr
W R ,R D 90%
V DD
V a lid D a ta
V DD
C lo c k
50%
10%
tC L K
tC L K
GND
D ATA
50%
ts u
th
GND
Figure 1
WR
C lo c k
V DD
50%
GND
Figure 2
tC S
V DD
CS
50%
V DD
D ATA
50%
GND
GND
to d
tsu 1
th 1
W R ,R D
C lo c k
50%
V DD
RD
GND
V DD
GND
F ir s t C lo c k
L a s t C lo c k
Figure 4
Figure 3
Rev. 1.20
4
June 28, 2011
Share Link: 