ST7556 Sitronix Technology, ST7556 Datasheet - Page 32

• Manufacturer Part Number: ST7556
• Description: 65 x 102 Dot Matrix LCD Controller/Driver
• Manufacturer: Sitronix Technology

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ST7556
Bare Dice Consumption Current : During Display, with the Internal Power Supply, Current consumed by total ICs when an
external power supply(VDD,VDD2) is used .
Notes to the DC characteristics
1. The maximum possible V
2. Internal clock
3. Power-down mode. During power down all static currents are switched off.
4. If external V
5. V
References for items market with *
*1 While a broad range of operating voltages is guaranteed, performance cannot be guaranteed if there are sudden
*2 The A0, D0 to D5, D6 (SI), D7 (SCL), /RD (E), /WR ,/(R/W), CSB, IMS, OSC, P/S, /DOF, RESB ,and MODE terminals.
*3 The D0 to D7, and OSC terminals.
*4 The A0,/RD (E), /WR ,/(R/W), CSB, IMS, OSC, P/S, /DOF, RESB ,and MODE terminals.
*5 Applies when the D0 to D5, D6 (SI), D7 (SCL) terminals are in a high impedance state.
*6 These are the resistance values for when a 0.1 V voltage is applied between the output terminal SEGn or COMn and the
*7 The relationship between the oscillator frequency and the frame rate frequency.
*8,9It indicates the current consumed on ICs alone when the internal oscillator circuit and display are turned on.
Ver 2.2
fluctuations to the voltage while the MPU is being accessed.
various power supply terminals (V1, V2, V3, and V4). These are specified for the operating voltage range.
RON = 0.1 V /∆I (Where ∆I is the current that flows when 0.1 V is applied while the power supply is ON.)
Display Pattern
OUT
Power Down
Test pattern
SNOW
external voltage applied to VLCDIN pin; VLCDIN disconnected from VLCDOUT (no connect)
LCDIN
, the display load current is not transmitted to I
Symbol
ISS
ISS
LCD
voltage that may be generated is dependent on voltage, temperature and (display) load.
VDD,VDD2 = 3.0 V,
V0 – VSS = 9.0 V
4X Booster
VDD=3.0V
Ta = 25°C
Condition
1/9 Bias
32/43
DD
.
Min.
—
—
Rating
Typ.
0.01
300
Max.
400
2
Units
μ A
μ A
2005/10/05
Notes
*8