PCF8558 Ver la hoja de datos (PDF) - Philips Electronics
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PCF8558 Datasheet PDF : 24 Pages
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Philips Semiconductors
Universal LCD driver for small graphic
panels
Objective specification
PCF8558
DC CHARACTERISTICS
VDD = 2.5 to 6 V; VSS = 0 V; VLCD = VDD − 3.5 V to VDD − 9 V; Tamb = −40 to +85 °C; unless otherwise specified, note 1.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Supplies
VDD
VLCD
IDD(PD)
IDD1
IDD2
ILCD
VPOR
Logic
VIL1
VIH1
VIL2
VIH2
IL1
CI1
supply voltage
LCD supply voltage
supply current in power-down mode
supply current external clock
supply current internal clock
LCD input current
power-on reset level
note 2
LOW level input voltage (all inputs
except OSC)
HIGH level input voltage (all inputs
except OSC)
LOW level input voltage (pin OSC)
HIGH level input voltage (pin OSC)
leakage current at T1, T3 OSC and SA0
input capacitance at T1, T3 OSC and
SA0
VI = VDD or VSS
note 3
2.5
−
VDD − 9 −
−
5
−
120
−
130
−
50
0.6
1.3
VSS
−
0.7VDD −
VSS
−
VDD − 0.1 −
−1
−
−
−
6.0
V
VDD − 3.5 V
10
µA
180
µA
200
µA
100
µA
1.8
V
0.3VDD V
VDD
V
VDD − 1.5 V
VDD
V
+1
mA
5
pF
LCD outputs
VDC
DC component of LCD drivers R1 to R40
and C1 to C101
RROW
output resistance R1 to R40
RCOL
output resistance C1 to C101
I2C-bus; SDA and SCL
note 4
note 4
VIL3
LOW level input voltage
VIH3
HIGH level input voltage
IL2
leakage current
CI2
input capacitance
IOL
LOW level output current at SDA
note 5
note 5
VI = VDD or VSS
note 3
VOL = 0.4 V;
VDD = 5 V
−
±20
−
1.5
−
3
VSS
−
0.7VDD −
−1
−
−
−
3.0
−
−
mV
6
kΩ
10
kΩ
0.3VDD V
6
V
+1
mA
7
pF
−
mA
Notes
1. Outputs are open-circuit; inputs at VDD or VSS; I2C-bus inactive; external clock with 50% duty factor.
2. Resets all logic when VDD < VPOR.
3. Periodically sampled, not 100% tested.
4. Resistance of output terminals (R1 to R40 and C1 to C101) with IL = 20 µA; VOP = VDD − VLCD = 9 V; outputs
measured one at a time.
5. When the voltages are above or below the supply voltages VDD or VSS, an input current may flow. This current must
not exceed ±0.5 mA.
1998 Apr 07
14
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