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HD6433044 Datasheet, PDF (689/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer | |||
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Table 21-11 Permissible Output Currents
Conditions: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V, VREF = 2.7 V to AVCC,
VSS = AVSS = 0 V, Ta = â20°C to +75°C (regular specifications),
Ta = â40°C to +85°C (wide-range specifications)
Item
Permissible output
low current (per pin)
Permissible output
low current (total)
Ports 1, 2, 5, and B
Other output pins
Total of 28 pins in
ports 1, 2, 5, and B
Symbol Min Typ Max Unit
IOL
â â 10 mA
â â 2.0 mA
ΣIOL
â â 80 mA
Total of all output pins,
including the above
â â 120 mA
Permissible output
high current (per pin)
All output pins
IOH
â â 2.0 mA
Permissible output
high current (total)
Total of all output pins
ΣIOH
â â 40 mA
Notes: 1. To protect chip reliability, do not exceed the output current values in table 21-11.
2. When driving a darlington pair or LED, always insert a current-limiting resistor in the
output line, as shown in figures 21-4 and 21-5.
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