STE2004 Datasheet, PDF (56/66 Pages) STMicroelectronics – 102 X 65 SINGLE CHIP LCD CONTROLLER / DRIVER

STE2004
Table 23 Electrical Characteristics (continued)
DC OPERATION (continued)
(V_DD1 = 1.7 to 3.6 V; V_DD2 = 1.75 to 4.5 V; Vss1,2 = 0V; VLCD = 4.5 to 15 V; Tamb =-40 to 85°C; unless otherwise specified)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
Logic Inputs
V_IL Logic LOW voltage level
V_SS
0.3
V
V_DD1
V_IH Logic HIGH Voltage Level
0.7
V_DD1
V_DD2
V
I_in
Input Current
V_in = V_SS1 or V_DD1
-1
1
µA
Logic Inputs/Outputs
V_IL Logic LOW voltage level
V_SS
0.3
V
V_DD1
V_IH Logic HIGH Voltage Level
0.7
V_DD1
V_DD1 +
V
0.5
Column and Row Driver
R_row ROW Output Resistance
3K
5K kohm
R_col Column Output resistance
5K
10K kohm
V_col Column Bias voltage accuracy No load
-50
+50
mV
V_row Row Bias voltage accuracy
-50
+50
mV
LCD Supply Voltage
V_LCD LCD Supply Voltage accuracy; V_DD = 2.8V; V_LCD = 10V;
-1.8
Internally generated
fsclk=0; T_amb=25 C; no display
load;note 2, 3, 6 & 7, VOP=69h,
PRS=2Hex
+1.8
%
TC0 Temperature coefficient
-0.0·
10^-3
1/°C
TC1
-0.35 ·
1/°C
10^-3
TC2
-0.7 ·
1/°C
10^-3
TC3
-1.05·
1/°C
10^-3
TC4
-1.4 ·
1/°C
10^-3
TC5
-1.75·
1/°C
10^-3
TC6
-2.1 ·
1/°C
10^-3
TC7
-2.3·
1/°C
10^-3
Notes: 1. The maximum possible V_LCD voltage that can be generated is dependent on voltage, temperature and (display) load.
2. Internal clock
3. When f_sclk = 0 there is no interface clock.
4. Power-down mode. During power-down all static currents are switched-off.
5. If external V_LCD, the display load current is not transmitted to I_DD
6. Tolerance depends on the temperature; (typically zero at T_amb = 27°C), maximum tolerance values are measured at the temper-
ature range limit.
7. For TC0 to TC7
8. Data Byte Writing Mode
9. VDD1<=VDD2
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