PCF8577CU/F3 查看數據表（PDF） - Philips Electronics
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PCF8577CU/F3 Datasheet PDF : 28 Pages
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Philips Semiconductors
LCD direct/duplex driver with
I2C-bus interface
Product specification
PCF8577C
11 AC CHARACTERISTICS
VDD = 2.5 to 6 V; Tamb = −40 to 85 °C; unless otherwise specified. All the timing values are valid within the operating
supply voltage and ambient temperature range and refer to VIL and VIH with an input voltage swing of VSS to VDD.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP.(1) MAX. UNIT
fLCD
display frequency
Cosc = 680 pF; Rosc = 1 MΩ 65
90
120
Hz
tBS
driver delays with test loads
VDD = 5 V
−
20
100
µs
I2C-bus
fSCL
tSW
tBUF
tSU;STA
tHD;STA
tLOW
tHIGH
tr
tf
tSU;DAT
tHD;DAT
tSU;STO
SCL clock frequency
tolerable spike width on I2C-bus Tamb = 25 °C
I2C-bus free time
START condition set-up time
START condition hold time
SCL LOW time
SCL HIGH time
SCL and SDA rise time
SCL and SDA fall time
data set-up time
data hold time
STOP condition set-up time
−
−
−
−
4.7
−
4.0
−
4.0
−
4.7
−
4.0
−
−
−
−
−
250
−
0
−
4.0
−
100
kHz
100
ns
−
µs
−
µs
−
µs
−
µs
−
µs
1.0
µs
0.3
µs
−
ns
−
ns
−
µs
Note
1. Typical conditions: VDD = 5 V; Tamb = 25 °C.
SCL, SDA
(pins 39, 40)
1.5 k Ω
VDD
S32 to S1
(pins 1 to 32)
6.8 k Ω
(VDD VSS ) / 2
MGA730
Fig.12 Test loads.
1998 Jul 30
14
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