ST7070 View Datasheet(PDF) - Sitronix Technology Co., Ltd.
Part Name
Description
MFG CO.
'ST7070' PDF : 51 Pages View PDF
ST7070
AC Characteristics
In Serial Interface
(TA = 25°C, VCC = 5V)
Symbol Characteristics Test Condition Min. Typ. Max.
Internal Clock Operation
fOSC
OSC Frequency R = 91KΩ
190 270 350
External Clock Operation
fEX
External Frequency
-
125 270 410
Duty Cycle
-
45 50 55
Tr,Tf
Rise/Fall Time
-
-
-
0.2
Write Mode (Writing data from MPU to ST7070)
TSCYC
TSHW,SLW
SCL Cycle Time SCL
SCL Pulse Width SCL
2010 -
-
1010 -
-
Tr,Tf SCL Rise/Fall Time SCL
-
-
25
TSAS
TSAH
TSDS
Address Setup Time RS
Address Hold Time RS
Data Setup Time SI
60
-
-
10
-
-
10
-
-
TSDH
Data Hold Time SI
60
-
-
TCSS
TCSH
CS-SCL Time CS
60
CS-SCL Time CS
160
Interface Mode with LCD Driver(ST7921)
TCWH Clock Pulse with High Pins: CL1, CL2
800
-
-
TCWL
TCST
Clock Pulse with Low Pins: CL1, CL2
Clock Setup Time Pins: CL1, CL2
800
-
-
500
-
-
TSU
Data Setup Time Pin: D
300
-
-
TDH
Data Hold Time Pin: D
300
-
-
TDM
M Delay Time Pin: M
0
- 2000
Unit
KHz
KHz
%
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V1.4
40/51
2009/04/29
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