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 = 2.7V )
Symbol Characteristics Test Condition Min. Typ. Max.
Internal Clock Operation
fOSC
OSC Frequency R = 75KΩ
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
Tr,Tf
SCL Cycle Time SCL
SCL Pulse Width SCL
SCL Rise/Fall Time SCL
2480 -
-
1190 -
-
-
-
25
TSAS Address Setup Time RS
75
-
-
TSAH Address Hold Time RS
10
-
-
TSDS
Data Setup Time SI
10
-
-
TSDH
Data Hold Time SI
75
-
-
TCSS
CS-SCL Time CS
75
TCSH
CS-SCL Time CS
250
Interface Mode with LCD Driver(ST7921)
TCWH
TCWL
TCST
TSU
TDH
TDM
Clock Pulse with High Pins: CL1, CL2
Clock Pulse with Low Pins: CL1, CL2
Clock Setup Time Pins: CL1, CL2
Data Setup Time Pin: D
Data Hold Time Pin: D
M Delay Time Pin: M
800
-
-
800
-
-
500
-
-
300
-
-
300
-
-
0
- 2000
Unit
KHz
KHz
%
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V1.4
39/51
2009/04/29
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