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PCF2116CU/12 데이터시트(PDF) 38 Page - NXP Semiconductors |
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PCF2116CU/12 데이터시트(HTML) 38 Page - NXP Semiconductors |
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38 / 64 page ![]() 1997 Apr 07 38 Philips Semiconductors Product specification LCD controller/drivers PCF2116 family 16 AC CHARACTERISTICS VDD = 2.5 to 6.0 V; VSS =0V; VLCD =VDD − 3.5VtoVDD − 9 V; Tamb = −40 °C to +85 °C; unless otherwise specified. Notes 1. VDD =5V. 2. 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. SYMBOL PARAMETER MIN. TYP. MAX. UNIT fFR LCD frame frequency (internal clock); note 1 40 65 100 Hz fosc external clock frequency 90 150 225 kHz Bus timing characteristics: Parallel Interface; notes 1 and 2 WRITE OPERATION (WRITING DATA FROM MICROCONTROLLER TO PCF2116) Tcy enable cycle time 500 −− ns PWEH enable pulse width 220 −− ns tASU address set-up time 50 −− ns tAH address hold time 25 −− ns tDSW data set-up time 60 −− ns tHD data hold time 25 −− ns READ OPERATION (READING DATA FROM PCF2116 TO MICROCONTROLLER) Tcy enable cycle time 500 −− ns PWEH enable pulse width 220 −− ns tASU address set-up time 50 −− ns tAH address hold time 25 −− ns tDHD data delay time −− 150 ns tHD data hold time 20 − 100 ns Timing characteristics: I2C-bus interface; note 2 fSCL SCL clock frequency −− 100 kHz tSW tolerable spike width on bus −− 100 ns tBUF bus free time 4.7 −−µs tSU;STA set-up time for a repeated START condition 4.7 −−µs tHD;STA START condition hold time 4 −−µs tLOW SCL LOW time 4.7 −−µs tHIGH SCL HIGH time 4 −−µs tr SCL and SDA rise time −− 1 µs tf SCL and SDA fall time −− 0.3 µs tSU;DAT data set-up time 250 −− ns tHD;DAT data hold time 0 −− ns tSU;STO set-up time for STOP condition 4 −−µs |
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