HD6432351 datasheet(740/1025 Pages) RENESAS

740 / 1025 page

Section 21 Electrical Characteristics

Rev. 3.00 Sep 15, 2006 page 706 of 988

REJ09B0330-0300

Table 21.3 Permissible Output Currents

Conditions: VCC = 2.7 to 5.5 V, AVCC = 2.7 to 5.5 V, Vref = 2.7 to AVCC, VSS = AVSS = 0 V,

Ta = –20 to +75°C (regular specifications), Ta = –40 to +85°C (wide-range

specifications)

Item

Symbol

Min

Typ

Max

Unit

Ports 1, A to C

I OL

—

Permissible output

low current (per pin)

Other output pins

—

2.0

Permissible output

low current (total)

Total of 32 pins

including ports 1

and A to C

∑ I OL

—

Total of all output

pins, including the

above

—

120

Permissible output

high current (per pin)

All output pins

–I OH

—

2.0

Permissible output

high current (total)

Total of all output

pins

∑ –I OH

—

Notes: 1. To protect chip reliability, do not exceed the output current values in table 21.3.

2. When driving a darlington pair or LED directly, always insert a current-limiting resistor in

the output line, as show in figures 21.1 and 21.2.

2 k

Ω

H8S/2350 Group

Port

Darlington Pair

Figure 21.1 Darlington Pair Drive Circuit (Example)

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