Philips Semiconductors
LCD controllers/drivers
Product specification
PCF2103 family
13 AC CHARACTERISTICS
VDD = 1.8 to 5.5 V; VSS = 0 V; VLCD = 2.2 − 6.5 V; Tamb = −40 to +85 °C; unless otherwise specified.
SYMBOL
PARAMETER
ffr(LCD)
fosc
fosc(ext)
tOSCST
LCD frame frequency (internal clock)
oscillator frequency (not available at any pin)
external clock frequency
oscillator start-up time after PD going from
logic 1 to logic 0
CONDITIONS MIN.
VDD = 5.0 V 45
140
140
−
TYP.
81
250
−
200
MAX.
147
450
450
300
UNIT
Hz
kHz
kHz
µs
Bus timing characteristics: parallel interface; note 1
WRITE OPERATION (WRITING DATA FROM MICROCONTROLLER TO PCF2103); see Fig.23
Ten(cy)
tW(en)
tsu(A)
th(A)
tsu(D)
th(D)
enable cycle time
enable pulse width
address set-up time
address hold time
data set-up time
data hold time
500
−
220
−
50
−
25
−
60
−
25
−
READ OPERATION (READING DATA FROM PCF2103 TO MICROCONTROLLER); see Fig.24
Ten(cy)
tW(en)
tsu(A)
th(A)
td(D)
th(D)
enable cycle time
enable pulse width
address set-up time
address hold time
data delay time
data hold time
500
−
220
−
50
−
25
−
−
−
20
−
Timing characteristics: I2C-bus interface; note 1
fSCL
tLOW
tHIGH
tSU;DAT
tHD;DAT
tr
tf
CB
tSU;STA
tHD;STA
tSU;STO
tSW
SCL clock frequency
SCL clock LOW period
SCL clock HIGH period
data set-up time
data hold time
SCL and SDA rise time
SCL and SDA fall time
capacitive bus line load
set-up time for a repeated START condition
START condition hold time
set-up time for STOP condition
tolerable spike width on bus
−
−
1.3
−
0.6
−
100
−
0
−
−
−
−
−
−
−
0.6
−
0.6
−
0.6
−
−
−
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
150
ns
100
ns
400
kHz
−
µs
−
µs
−
ns
−
ns
300
ns
300
ns
400
pF
−
µs
−
µs
−
µs
50
ns
Note
1. All timing values are valid within the operating supply voltage and ambient temperature range and are referenced to
VIL and VIH with an input voltage swing of VSS to VDD.
1998 May 11
35