HD61203U_1 Datasheet, PDF (24/29 Pages) Hitachi Semiconductor – Dot Matrix Liquid Crystal Graphic Display 64-Channel Common Driver

HD61203U
5. External clock is as follows.
TH
TL
External clock
waveform
0.7 V_CC
0.5 V_CC
0.3 V_CC
t_rcp
t_fcp
External clock Open Open
CR R C
Duty cycle =
TH
TH + TL
× 100%
Duty
cycle
t_rcp
t_fcp
Min Typ Max Unit
45 50 55 %
— — 50 ns
— — 50 ns
6. Applies to the shift register in the slave mode. For details, refer to AC characteristics.
7. Connect oscillation resistor (Rf) and oscillation capacitance (Cf) as shown in this figure.
Oscillation frequency (f_OSC) is twice as much as the frequency (fø) at ø1 or ø2.
Cf
Rf
CR R C
ø1, ø2
Cf = 20 pF
Rf = 47 kΩ
f_OSC = 2 × fø
8. No lines are connected to output terminals and current flowing through the input circuit is
excluded. This value is specified at VIH = V_CC and VIL = GND.
9. This value is specified for current flowing through GND in the following conditions: Internal
oscillation circuit is used. Each terminal of DS1, DS2, FS, SHL, M/S, $%, and FCS is
connected to V_CC and each of CL1 and TH to GND. Oscillator is set as/ described in note 7.
10. This value is specified for current flowing through GND under the following conditions: Each
terminals of DS1, DS2, FS, SHL, $%, FCS and CR is connected to V_CC, CL1, TH, and M/S to
GND and the terminals CL2, M, and DL are respectively connected to terminals CL2, M, and
DL of the HD61203U under the condition described in note 9.
11. This value is specified for current flowing through V_EE under the condition described in note 9.
Don’t connect any lines to terminal V.
12. This figure shows a typical relation among oscillation frequency, Rf and Cf. Oscillation
frequency may vary with the mounting conditions.
600
C_f = 20 pF
400
200
0
50
100
R_f (kΩ)
872