Siemens EF 88H Series Bedienungsanleitung PDF herunterladen (Seite 27)

Semiconductor Group 4 - 2

Table 4-1, Status of all Pins During Hardware Power Down Mode

Pins Status Voltage Range at Pin During

HW-Power Down

P0, P1, P2, P3, P4,

P5, P6, P7, P8

Floating outputs /

Disabled input function

≤ V

EA active input V

= V

or V

= V

PE/SWD active input, Pull-up resistor disabled

during HW power down

= V

or V

= V

XTAL1 active output pin may not be driven

XTAL2 disabled input function

≤ V

≤V

PSEN, ALE Floating outputs /

Disabled input function

(for test modes only)

≤ V

VAREF, VAGND active supply pins V

AGnd

≤ V

OWE active input; must be at high level for

start-up after HW PD; pull up resistor

disabled during HW-power down

= V

(

= V

)

Reset

active input; must be on high level if

HW PD is used

= V

R0 Floating output V

≤ V

System Reset

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 136 137

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