STE2002 Datasheet, PDF (40/51 Pages) STMicroelectronics – 81 X 128 SINGLE CHIP LCD CONTROLLER / DRIVER

STE2002
ELECTRICAL CHARACTERISTICS
AC OPERATION
(V_DD1 = 1.7 to 3.6V; V_DD2 = 1.75 to 4.2V; V_ss1,2 = 0V; V_LCD = 4.5 to 11V; T_amb =-40 to 85°C; unless otherwise specified)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
INTERNAL OSCILLATOR
F_OSC Internal Oscillator frequency
V_DD = 2.8V;
Tamb = -20 to +70 °C
64
72
80
kHz
F_EXT External Oscillator frequency
20
100
kHz
F_FRAME Frame frequency
fosc or fext = 72 kHz; note 1
75
Hz
T_w(RES) RES LOW pulse width
Reset Pulse Rejection
5
µs
1
µs
T_LOGIC Internal Logic Reset Time
(RES)
5
µs
T_VDD V_DD1 vs. V_DD2 Delay
0
µs
Figure 48. RESET timing diagram
Tw(res) Tlogic(res)
VDD2
VDD1
RES
INPUTS
I/O
(HOST)
I/O
(DRIVER)
INTERFACE
OUTPUT
OSCIN
(HOST)
OSC OUT
(DRIVER)
BSY FLG
Hi-Z
Hi-Z
RESET
TABLE
LOADED
LR0118
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