aduc847bs8-3 Analog Devices, Inc., aduc847bs8-3 Datasheet - Page 12

• Manufacturer Part Number: aduc847bs8-3
• Description: Microconverter, 10-channel 24-bit Adc With Embedded 62kb Flash Mcu
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
*I = Input, O = Output, S = Supply.
Pin numbers subject to change.
REV. PrA 05/03
52-MQFP
43
49
Pin No:
46
52
46
52
Pin No:
56-CSP
49
55
P0.0
Mnemonic
Pin
P0.7
DETAILED BLOCK DIAGRAM WITH PIN NUMBERS
Figure 1: Detailed Block Diagram of the ADuC847
Pin numbers refer to the 52pin MQFP package.
Type*
I/O
Description
P0.0–P0.7, these pins are part of Port0 which is an 8-bit open-drain
bidirectional I/O 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 will
be 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 it uses strong internal pull-ups when
emitting 1s.
12
ADuC847