EVAL-ADUC847QS Analog Devices Inc, EVAL-ADUC847QS Datasheet - Page 14

• Manufacturer Part Number: EVAL-ADUC847QS
• Description: KIT DEV FOR ADUC847 QUICK START
• Manufacturer: Analog Devices Inc

Specifications of EVAL-ADUC847QS

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADuC845/ADuC847/ADuC848
Pin No:
52-MQFP
43–46,
49–52
1
I = input, O = output, S = supply.
Pin No: 56-
LFCSP
46–49, 52–
55
Mnemonic
P0.0–P0.7
Type
I/O
1
Rev. B | Page 14 of 108
Description
These pins are part of Port 0, which is an 8-bit open-d
port. Port 0 pins that have 1s written to them float, and, in that state, can be
used as high impedance inputs. An external pull-up resistor is required on P0
outputs to force a valid logic high level externally. Port 0 is also the
multiplexed low-order address and data bus during accesses to external data
memory. In this application, Port 0 uses strong internal pull-ups when
emitting 1s.
rain bidirectional I/O