3850 datasheet(83/101 Pages) RENESAS

83 / 101 page

Rev.3.01

2003.06.20

page 83 of 98

3850 Group (Spec.H)

Table 24 Recommended operating conditions (2) (spec. H)

(VCC = 2.7 to 5.5 V, Ta = –20 to 85

°C, unless otherwise noted)

–10

–5

“H” peak output current

P00–P07, P10–P17, P20, P21, P24–P27, P30–P34,

P40–P44 (Note 1)

“L” peak output current (Note 1)

P00–P07, P20–P27, P30–P34, P40–P44

P10–P17

“H” average output current

P00–P07, P10–P17, P20, P21, P24–P27, P30–P34,

P40–P44 (Note 2)

“L” average output current (Note 2) P00–P07, P20–P27, P30–P34, P40–P44

P10–P17

Internal clock oscillation frequency (VCC = 4.0 to 5.5V) (Note 3)

Internal clock oscillation frequency (VCC = 2.7 to 5.5V) (Note 3)

IOH(peak)

IOL(peak)

IOH(avg)

IOL(avg)

f(XIN)

Symbol

Parameter

Limits

Min.

MHz

Unit

Typ.

Max.

Notes 1: The peak output current is the peak current flowing in each port.

2: The average output current IOL(avg), IOH(avg) are average value measured over 100 ms.

3: When the oscillation frequency has a duty cycle of 50%.

Table 25 Electrical characteristics (1) (spec. H)

(VCC = 2.7 to 5.5 V, VSS = 0 V, Ta = –20 to 85

°C, unless otherwise noted)

Electrical characteristics

“H” output voltage

P00–P07, P10–P17, P20, P21,

P24–P27, P30–P34, P40–P44

(Note)

“L” output voltage

P00–P07, P20–P27, P30–P34,

P40–P44

“L” output voltage

P10–P17

Limits

Parameter

Min.

Typ.

Max.

Symbol

Unit

Note: P25 is measured when the P25/TXD P-channel output disable bit of the UART control register (bit 4 of address 001B16) is “0”.

IOH = –10 mA

VCC = 4.0–5.5 V

IOH = –1.0 mA

VCC = 2.7–5.5 V

IOL = 10 mA

VCC = 4.0–5.5 V

IOL = 1.0 mA

VCC = 2.7–5.5 V

IOL = 20 mA

VCC = 4.0–5.5 V

IOL = 10 mA

VCC = 2.7–5.5 V

VCC–2.0

VCC–1.0

Test conditions

2.0

1.0

2.0

1.0

VOH

VOL

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