Epson S1C33L03 manual 88

8 ELECTRICAL CHARACTERISTICS

8.2 Recommended Operating Conditions

1) 3.3 V/5.0 V dual power source

(VSS=0V)

Item	Symbol	Condition	Min.	Typ.	Max.	Unit	∗
Supply voltage (high voltage)	VDDE		4.50	5.00	5.50	V
Supply voltage (low voltage)	VDD		2.70	–	3.60	V
Input voltage	HVI		VSS	–	VDDE	V
	LVI		VSS	–	VDD	V
CPU operating clock frequency	fCPU		–	–	50	MHz
External bus operating clock frequency	fBUS		–	–	35	MHz
Low-speed oscillation frequency	fOSC1		–	32.768	–	kHz
Operating temperature	Ta		-40	25	85	°C
Input rise time (normal input)	tri		–	–	50	ns
Input fall time (normal input)	tfi		–	–	50	ns
Input rise time (schmitt input)	tri		–	–	5	ms
Input fall time (schmitt input)	tfi		–	–	5	ms
2) 3.3 V single power source
				(VDDE=VDD, VSS=0V)
Item	Symbol	Condition	Min.	Typ.	Max.	Unit	∗
Supply voltage	VDD		2.70	–	3.60	V
Input voltage	VI		VSS	–	VDD	V
CPU operating clock frequency	fCPU		–	–	50	MHz
External bus operating clock frequency	fBUS		–	–	35	MHz
Low-speed oscillation frequency	fOSC1		–	32.768	–	kHz
Operating temperature	Ta		-40	25	85	°C
Input rise time (normal input)	tri		–	–	50	ns
Input fall time (normal input)	tfi		–	–	50	ns
Input rise time (schmitt input)	tri		–	–	5	ms
Input fall time (schmitt input)	tfi		–	–	5	ms
3) 2.0 V single power source
				(VDDE=VDD, VSS=0V)
Item	Symbol	Condition	Min.	Typ.	Max.	Unit	∗
Supply voltage	VDD		1.80	2.00	2.20	V
Input voltage	VI		VSS	–	VDD	V
CPU operating clock frequency	fCPU		–	–	20	MHz
External bus operating clock frequency	fBUS		–	–	20	MHz
Low-speed oscillation frequency	fOSC1		–	32.768	–	kHz
Operating temperature	Ta		-40	25	85	°C
Input rise time (normal input)	tri		–	–	100	ns
Input fall time (normal input)	tfi		–	–	100	ns
Input rise time (schmitt input)	tri		–	–	10	ms
Input fall time (schmitt input)	tfi		–	–	10	ms

A-72 EPSON S1C33L03 PRODUCT PART