Epson SED 1520 Series manual 34

SED1520 Series

• Display Control Signal Timing

t f t r

CL

tWLCL

t WHCL

tDFR

FR

SED1520 Series

Input

Ta = –20 to 75 deg. C, VSS = –5.0 V±10% unless stated otherwise

Parameter	Symbol	Condition		Rating		Unit	Signal
			Min.	Typ.	Max.
Low-level pulsewidth	tWLCL		35	—	—	μs
High-level pulsewidth	tWHCL		35	—	—	μs	CL
Rise time	tr		—	30	150	ns
Fall time	tf		—	30	150	ns
FR delay time	tDFR		–2.0	0.2	2.0	μs	FR
VSS = –2.7 to –4.5 V, Ta = –20 to +75°C

Parameter	Symbol	Condition		Rating		Unit	Signal
			Min.	Typ.	Max.
Low-level pulse width	tWLCL	—	70	—	—	μs
High-level pulse width	tWHCL	—	70	—	—	μs	CL
Rise time	tr	—	—	60	300	ns
Fall time	tf	—	—	60	300	ns
FR delay time	tDFR	—	–4.0	0.4	4.0	μs	FR
Note: The listed input tDFR applies to the SED1520 and SED1521 and SED1522 in slave mode.
Output
Ta = –20 to 75 deg. C, VSS = –5.0 V±10% unless stated otherwise
Parameter	Symbol	Condition		Rating		Unit	Signal
			Min.	Typ.	Max.
FR delay time	tDFR	CL = 100 pF	—	0.2	0.4	μs	FR
VSS = –2.7 to –4.5 V, Ta = –20 to +75°C
Parameter	Symbol	Condition		Rating		Unit	Signal
			Min.	Typ.	Max.
FR delay time	tDFR	CL = 100 pF	—	0.4	0.8	μs	FR

Notes: 1. The listed output tDFR applies to the SED1520 and SED1522 in master mode.

EPSON 2–25